Готові списки джерел за темами / Polarization dynamics of VCSEL

Зміст

  1. Статті в журналах
  2. Дисертації
  3. Книги
  4. Частини книг
  5. Тези доповідей конференцій
  6. Звіти організацій

Добірка наукової літератури з теми "Polarization dynamics of VCSEL"

Автор: Grafiati
Опубліковано: 26 січня 2023

Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями

Оберіть тип джерела:

Ознайомтеся зі списками актуальних статей, книг, дисертацій, тез та інших наукових джерел на тему "Polarization dynamics of VCSEL".

Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.

Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.

Статті в журналах з теми "Polarization dynamics of VCSEL"

1

Panajotov, Krassimir, Marc Sciamanna, Ignace Gatare, Mikel Arteaga, and Hugo Thienpont. "Nonlinear Dynamics of Vertical-Cavity Surface-Emitting Lasers." Advances in Optical Technologies 2011 (October 11, 2011): 1–16. http://dx.doi.org/10.1155/2011/469627.

Повний текст джерела
Анотація:
Nonlinear dynamics of Vertical-Cavity Surface-Emitting Lasers (VCSELs) induced by optical injection, optical feedback, current modulation and mutual coupling is reviewed. Due to the surface emission and cylindrical symmetry VCSELs lack strong polarization anisotropy and may undergo polarization switching. Furthermore, VCSELs may emit light in multiple transverse modes. These VCSEL properties provide new features to the rich nonlinear dynamics induced by an external perturbation. We demonstrate for the case of orthogonal optical injection that new Hopf bifurcation on a two-polarization-mode solution delimits the injection locking region and that polarization switching and injection locking of first-order transverse mode lead to a new resonance tongue for large positive detunings. Similarly, the underlying polarization mode competition leads to chaotic-like behavior in case of gain switching and the presence of two transverse modes additionally reduces the possibility of regular dynamics. The bistable property of VCSEL makes it possible to investigate very fundamental problems of bistable systems with time-delay, such as the coherence resonance phenomenon. We also demonstrate that the synchronization quality between unidirectionally coupled VCSELs can be significantly enhanced when the feedback-induced chaos in the master laser involves both orthogonal LP fundamental transverse modes.
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Kim, Kyong Hon, Seoung Hun Lee та Vijay Manohar Deshmukh. "Dynamics of 1.55 μm Wavelength Single-Mode Vertical-Cavity Surface-Emitting Laser Output under External Optical Injection". Advances in Optical Technologies 2012 (14 листопада 2012): 1–10. http://dx.doi.org/10.1155/2012/247070.

Повний текст джерела
Анотація:
We review the temporal dynamics of the laser output spectrum and polarization state of 1.55 μm wavelength single-mode (SM) vertical-cavity surface-emitting lasers (VCSELs) induced by external optical beam injection. Injection of an external continuous-wave laser beam to a gain-switched SM VCSEL near the resonance wavelength corresponding to its main polarization-mode output was critical for improvement of its laser pulse generation characteristics, such as pulse timing-jitter reduction, linewidth narrowing, pulse amplitude enhancement, and pulse width shortening. Pulse injection of pulse width shorter than the cavity photon lifetime into the SM VCSEL in the orthogonal polarization direction with respect to its main polarization mode caused temporal delay of the polarization recovery after polarization switching (PS), and its delay was found to be the minimum at an optimized bias current. Polarization-mode bistability was observed even in the laser output of an SM VCSEL of a standard circularly cylindrical shape and used for all-optical flip-flop operations with set and reset injection pulses of very low pulse energy of order of the 3.5~4.5 fJ.
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Doumbia, Yaya, Delphine Wolfersberger, Krassimir Panajotov, and Marc Sciamanna. "Two Polarization Comb Dynamics in VCSELs Subject to Optical Injection." Photonics 9, no. 2 (February 18, 2022): 115. http://dx.doi.org/10.3390/photonics9020115.

Повний текст джерела
Анотація:
Optical frequency comb technologies have received intense attention due to their numerous promising applications ranging from optical communications to optical comb spectroscopy. In this study, we experimentally demonstrate a new approach of broadband comb generation based on the polarization mode competition in single-mode VCSELs. More specifically, we analyze nonlinear dynamics and polarization properties in VCSELs when subject of optical injection from a frequency comb. When varying injection parameters (injection strength and detuning frequency) and comb properties (comb spacing), we unveil several bifurcation sequences enabling the excitation of free-running depressed polarization mode. Interestingly, for some injection parameters, the polarization mode competition induces a single or a two polarization comb with controllable properties (repetition rate and power per line). We also show that the performance of the two polarization combs depends crucially on the injection current and on the injected comb spacing. We explain our experimental findings by utilizing the spin-flip VCSEL model (SFM) supplemented with terms for parallel optical injection of frequency comb. We provide a comparison between parallel and orthogonal optical injection in the VCSEL when varying injection parameters and SFM parameters. We show that orthogonal comb dynamics can be observed in a wide range of parameters, as for example dichroism linear dichroism (γa=−0.1 ns−1 to γa=−0.8 ns−1), injection current (μ=2.29 to μ=5.29) and spin-flip relaxation rate (γs=50 ns−1 to γs=2300 ns−1).
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Bittner, Stefan, and Marc Sciamanna. "Complex nonlinear dynamics of polarization and transverse modes in a broad-area VCSEL." APL Photonics 7, no. 12 (December 1, 2022): 126108. http://dx.doi.org/10.1063/5.0104852.

Повний текст джерела
Анотація:
Lasers can exhibit nonlinear and chaotic dynamics driven by the interaction of multiple lasing modes, and investigating the different scenarios of mode competition and bifurcations of their dynamics is of great interest on a fundamental level as well as in view of applications. We study the dynamics of a broad-area vertical-cavity surface-emitting laser (VCSEL) in solitary continuous-wave operation with a comprehensive investigation of its polarization state, lasing spectra, near-field distributions, and temporal dynamics. Fluctuations at the frequency of birefringence splitting and other frequency components develop in a series of bifurcations. The bifurcations coincide with changes of the transverse lasing modes and/or the polarization state, demonstrating the importance of both the spatial and polarization degrees of freedom for mode competition. As a consequence, the inherent nonlinear dynamics of broad-area VCSELs is significantly more complex than the dynamics of VCSELs with a single spatial mode.
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Vatin, Jeremy, Damien Rontani, and Marc Sciamanna. "Experimental reservoir computing using VCSEL polarization dynamics." Optics Express 27, no. 13 (June 18, 2019): 18579. http://dx.doi.org/10.1364/oe.27.018579.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Uy, Chi-Hak, Damien Rontani, and Marc Sciamanna. "Vectorial extreme events in VCSEL polarization dynamics." Optics Letters 42, no. 11 (May 30, 2017): 2177. http://dx.doi.org/10.1364/ol.42.002177.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Loiko, N. A., A. V. Naumenko, and N. B. Abraham. "Complex polarization dynamics in a VCSEL with external polarization-selective feedback." Journal of Optics B: Quantum and Semiclassical Optics 3, no. 2 (March 27, 2001): S100—S111. http://dx.doi.org/10.1088/1464-4266/3/2/353.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Jadan, M., Jihad Addasi, Moayad Husein Flaifel, L. I. Burov, A. S. Gorbatsevich, and P. M. Lobatsevich. "The effect of VCSEL intrinsic dynamics on polarization bistability." Results in Physics 14 (September 2019): 102379. http://dx.doi.org/10.1016/j.rinp.2019.102379.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Harkhoe, Krishan, Guy Verschaffelt, and Guy Van der Sande. "Neuro-Inspired Computing with Spin-VCSELs." Applied Sciences 11, no. 9 (May 7, 2021): 4232. http://dx.doi.org/10.3390/app11094232.

Повний текст джерела
Анотація:
Delay-based reservoir computing (RC), a neuromorphic computing technique, has gathered lots of interest, as it promises compact and high-speed RC implementations. To further boost the computing speeds, we introduce and study an RC setup based on spin-VCSELs, thereby exploiting the high polarization modulation speed inherent to these lasers. Based on numerical simulations, we benchmarked this setup against state-of-the-art delay-based RC systems and its parameter space was analyzed for optimal performance. The high modulation speed enabled us to have more virtual nodes in a shorter time interval. However, we found that at these short time scales, the delay time and feedback rate heavily influence the nonlinear dynamics. Therefore, and contrary to other laser-based RC systems, the delay time has to be optimized in order to obtain good RC performances. We achieved state-of-the-art performances on a benchmark timeseries prediction task. This spin-VCSEL-based RC system shows a ten-fold improvement in processing speed, which can further be enhanced in a straightforward way by increasing the birefringence of the VCSEL chip.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Quirce, Ana, Cristina de Dios, Angel Valle, Luis Pesquera, and Pablo Acedo. "Polarization Dynamics in VCSEL-Based Gain Switching Optical Frequency Combs." Journal of Lightwave Technology 36, no. 10 (May 15, 2018): 1798–806. http://dx.doi.org/10.1109/jlt.2018.2790435.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Дисертації з теми "Polarization dynamics of VCSEL"

1

Sondermann, Markus. "On polarization dynamics in vertical cavity surface emitting lasers solitary devices and lasers with isotropic optical feedback /." [S.l. : s.n.], 2004. http://deposit.ddb.de/cgi-bin/dokserv?idn=971884374.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Uy, Chi-Hak. "Two-Polarization dynamics in optically delayed lasers." Electronic Thesis or Diss., CentraleSupélec, 2018. http://www.theses.fr/2018CSUP0006.

Повний текст джерела
Анотація:
La diode laser est un composant clef de notre vie de tous les jours. Inventée il y a cinquante ans (1962) elle est utilisée aujourd'hui pour lire l'information encodée sur des disques compacts dans les lecteurs CD, pour transmettre l'information sous forme optique dans les réseaux de télécommunications à fibres optiques, pour scanner nos articles dans les supermarchés, pour aider au positionnement, à l'éclairage et à l'affichage dans des systèmes multimédias. Ces applications nécessitent un comportement stable et surtout prédictible du composant laser. Cependant, il a été démontré depuis plus de trente ans que sous certaines conditions, la diode laser émet une puissance fluctuant dans le temps de façon chaotique c'est-à-dire imprévisible. Le chaos ou la sensibilité extrême d'un système dynamique conduisant à son imprédictibilité, a aujourd'hui été observé dans grands nombres de systèmes physiques et biologiques. Le chaos explique par exemple aujourd'hui l'impossibilité mathématique de prédire la météo au-delà de quelques jours. Cette thèse est donc à la confrontation de deux thèmes scientifiques majeurs: le comportement dynamique et les performances de diodes lasers, et l'étude du chaos optique. Nous proposons dans un premier temps d'étudier la génération de chaos optique par une diode laser à l'aide d'une rétroaction optique conduisant à des dynamiques complexes entre deux états de polarisation du laser. L'analyse approfondie de ces dynamiques montre l'existence de propriétés de corrélation inattendues entre polarisation se manifestant à plusieurs échelles de temps distincts. Nous démontrons d'une part l’interaction qui existe entre ces échelles de temps et proposons d'autre part une interprétation physique à ce phénomène.Dans un second temps, nous nous intéressons à une dynamique particulière conduisant à un basculement régulier entre deux états de polarisation dans une diode laser soumis à une rétroaction optique modifiant l'état de polarisation. Ces basculements sont à l'origine de modulation ondes carrées. La fréquence de modulation est modulable de manière très simple par une modification de la rétroaction. De plus, nous observons l'apparition de dynamiques oscillants et entretenues accompagnant les états hauts des ondes carrées. Une analyse expérimentale et numérique montre que la fréquence de ces oscillations dépassent les fréquences typiques observées pour ce genre de système laser. L'étude analytique prévoit des fréquences pouvant aller au-delà des 20 GHz sur des dispositifs lasers particuliers appelés VCSELs
Laser diodes have become a key component in our everyday life. Discovered 50 years ago (1962), laser diode is used for reading information engraved in compact disk (CD), for transmitting informations in modern telecommunication systems based on optical fibers, for reading bar codes at the supermarket, for positioning and ranging and for lightning. All those applications need a stable and predictible behavior of the laser. Nonetheless, it has been shown that lasers can emit an chaotic fluctuation of light intensity under certain conditions i.e. an unpredictable dynamic. The chaos, or the high sensitivity of a system leading to its unpredictibility, is nowaday observed in a large variety of physical and biologial systems. Chaos explains for example the mathématical impossibility to predict the weather beyond few days. This thesis is therefore at the interface between two main scientific themes : the dynamical behavior and the specifications of laser diodes, and the study of optical chaos.We propose in a first part to study the generation of optical chaos from a laser diode using an optical feedback which leads to complex dynamics between two polarisation states of the laser. An in-depth analysis of this dynamic shows the existence of unexpeted correlation properties between the polarisations which manifest themselves on several time-scales. We demonstrate, on the one hand, the interplay between the different time-scales and on the other hand, we bring a physical interpretation to this phenomenon.In a second part, we focus on a peculiar dynamic leading to regular switching between two polarization states in a laser diode subjected to optical feedback. Those swtichings lead to square-wave modulations. The modulation frequency can be driven by a simple modification of the feedback parameters. In addition, we observe the emergence of oscillatory and undamped dynamics which accompagny the upper state of the square-wave. An experimental and numerical analysis show that the frequency of those oscillations exceed the usual frequency signatures for this kind of laser system. The analytical study predicts frequencies going beyond 20 GHz for a peculier type of lasers called VCSELs
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Doumbia, Yaya. "Optical injection dynamics and polarization properties of semiconductor lasers frequency combs." Electronic Thesis or Diss., CentraleSupélec, 2021. http://www.theses.fr/2021CSUP0008.

Повний текст джерела
Анотація:
Dans ce travail, nous étudions la dynamique non linéaire de diodes laser injectées optiquement avec des peignes de fréquence.Nous analysons d'abord théoriquement et expérimentalement la dynamique non linéaire des lasers à émettant par la tranche (EELs) à partir d'une injection optique de peignes de fréquence. Les paramètres d'injection et les propriétés du peigne injecté sont variés pour dévoiler plusieurs dynamiques verrouillées et déverrouillées. Pour une force d'injection suffisamment grande et sur une large plage de désaccord, le verrouillage d'injection bifurque vers une dynamique temporelle correspondant à un peigne de fréquence optique qui étend le peigne injecté à un spectre optique beaucoup plus large. Une analyse de bifurcation révèle une dynamique de peigne de fréquence harmonique en cascade conduisant à une augmentation significative des lignes de peigne de sortie. Nous avons également utilisé les paramètres d'injection, les propriétés du peigne et le courant d'injection pour contrôler les propriétés du nouve peigne. Dans un deuxième temps, nous analysons expérimentalement la dynamique non linéaire et les propriétés de polarisation dans des lasers émettant par la surface (VCSEL) soumis à une injection optique orthogonale avec des peignes de fréquence. Plus important encore, le VCSEL montre deux peignes de fréquence avec une polarisation orthogonale à partir d'un seul appareil pour certains paramètres d'injection. Nous démontrons également la possibilité de contrôler le taux de répétition des peignes à une ou deux polarisations grâce à la génération de peignes à fréquence harmonique. Nous présentons enfin expérimentalement et théoriquement la dynamique d'injection de VCSEL à partir d'une injection de peigne de fréquence optique avec une polarisation parallèle à celle du VCSEL. Nous montrons que la performance des peignes à deux polarisations sont limitées à une injection de courant élevé dans le cas d'une injection optique parallèle. Pour un courant de polarisation fixe, la dynamique des deux peignes de polarisation disparaît lorsque l'on augmente l'espacement des peignes injectés.Cette thèse démontre donc outre son intérêt pour la dynamique laser non linéaire, l'injection optique est une technique permettant d'exploiter les propriétés de peigne dans les diodes laser
In this work, we study the nonlinear dynamics of laser diodes optically injected with frequency combs.We first theoretically and experimentally analyze the nonlinear dynamics of edge-emitting lasers (EELs) from an optical injection of frequency combs. The injection parameters and injected comb properties are varied to unveil several locked and unlocked dynamics. For large enough injection strength and over a large detuning range, the injection locking bifurcates to a time-periodic dynamics corresponding to an optical frequency comb that extends the injected comb to a much broader optical spectrum. A bifurcation analysis reveals a cascade harmonic frequency comb dynamics leading to a significant increase in the output comb lines. We have also used the injection parameters, comb properties, and injection current to control the new comb properties. We secondly analyze the nonlinear dynamics and polarization properties in vertical-cavity surface-emitting lasers (VCSELs) subject to orthogonal optical injection with frequency combs experimentally. Most importantly, the VCSEL shows two frequency combs with orthogonal polarization from a single device for some injection parameters. We also demonstrate the possibility to control the single or two polarizations comb repetition rate through harmonic frequency combs generation. We finally present experimentally and theoretically the VCSEL injection dynamics from parallel optical frequency comb injection. We show that the two polarizations combperformance is restricted to high current injection in the case of parallel optical injection. For fixed bias current, the two polarization comb dynamics disappear when increasing the injected comb spacing.This thesis therefore demonstrates besides its interest for nonlinear laser dynamics, optical injection is a technique to harness the comb properties in laser diodes
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Gatare, Gahangara Ignace. "Polarization switching, locking and synchronization in VCSELs with optical injection." Thesis, Metz, 2008. http://www.theses.fr/2008METZ004S/document.

Повний текст джерела
Анотація:
Le laser à cavité verticale émettant par la surface (VCSEL ou Vertical-Cavity Surface-Emitting Laser) comporte des avantages compétitifs par rapport aux lasers émettant par le côté. Le VCSEL présente souvent deux modes de polarisation linéaire orthogonaux avec des fréquences et des gains optiques presque identiques. Dès lors, de faibles perturbations telles que des modifications du courant d injection ou de la température peuvent induire des basculements de polarisation. Toutefois, en utilisant un schéma d injection optique d un faisceau laser externe, il est possible de contrôler ces instabilités de polarisation. Nous nous intéressons au contrôle du basculement de polarisation, à la bistabilité de polarisation ainsi qu à la compétition des modes transverses d un VCSEL soumis à injection optique de polarisation orthogonale. En variant les paramètres d injection¡(puissance injectée et désaccord en fréquence entre le laser maître et le VCSEL), nous montrons que le basculement de polarisation implique des dynamiques non linéaires telles le mélange d ondes, le cycle limite, la résonance subharmonique ainsi qu une route de doublement de période vers le chaos optique. L analyse des bifurcations sous-jacentes permet de dresser une cartographie des dynamiques de basculement de polarisation du VCSEL. orthogonaux affecte la qualité de la synchronisation du chaos. Ces résultats sont intéressants dans le cadre du développement de liaisons de communication sécurisée par chaos optique. Dans notre thèse, nous étudions également la synchronisation du chaos de VCSELs dans un schéma de couplage unidirectionnel. Nous montrons que la compétition des modes de polarisation linéaire
Vertical-cavity surface-emitting lasers (VCSELs) have competitive advantages with respect to conventional edge-emitting lasers such as the fabrication of dense two-dimensional VCSEL arrays for optical interconnects. VCSELs exhibit intriguing polarization properties which are critical in polarization-sensitive applications. Polarization switching (PS) between two VCSEL s preferential orthogonal linearly polarized (LP) modes may be induced by changing the bias current, temperature or, externally, through orthogonally polarized optical injection. Depending on optical injection parameters, i.e., the injected power and the frequency detuning, injection-locking of the VCSEL can be achieved. We contribute to the study of polarization bistability, polarization switching (PS), injection-locking and transverse mode competition in a VCSEL subject to orthogonal continuous-wave optical injection. We experimentally show and theoretically demonstrate that PS and locking may involve rich nonlinear dynamics including wave mixing, limit cycle, subharmonic resonances or a period-doubling route to chaos. In particular, we analyze the interplay between PS and the underlying nonlinear dynamics, and unveil its bifurcation mechanisms. Our study brings a new insight into the physics of polarization dynamics in externally-driven VCSELs. Chaos synchronization of coupled VCSELs is also investigated. A feedback-induced chaotic light from the master VCSEL is unidirectionally injected into the slave VCSEL. We show that the synchronization quality can be significantly enhanced when chaos involves both orthogonal LP modes. This result is interesting for chaos communication schemes based on VCSELs
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Ostermann, Johannes Michael. "Diffractive optics for polarization control of vertical-cavity surface-emitting lasers." [S.l. : s.n.], 2007. http://nbn-resolving.de/urn:nbn:de:bsz:289-vts-60098.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Tastavridis, Konstantinos. "Dynamics of vertical cavity surface emitting laser arrays." Thesis, University of Bristol, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268777.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Gaspar, Luis Alejandro Ladino. "CHARGE DENSITY WAVE POLARIZATION DYNAMICS." UKnowledge, 2008. http://uknowledge.uky.edu/gradschool_diss/643.

Повний текст джерела
Анотація:
We have studied the charge density wave (CDW) repolarization dynamics in blue bronze (K0.3MoO3) by applying symmetric bipolar square-wave voltages of different frequencies to the sample and measuring the changes in infrared transmittance, proportional to CDW strain. The frequency dependence of the electro-transmittance was fit to a modified harmonic oscillator response and the evolution of the parameters as functions of voltage, position, and temperature are discussed. We found that resonance frequencies decrease with distance from the current contacts, indicating that the resulting delays are intrinsic to the CDW with the strain effectively flowing from the contact. For a fixed position, the average relaxation time for most samples has a voltage dependence given by τ0 ∼ V −p, with 1 < p < 2. The temperature dependence of the fitting parameters shows that the dynamics are governed by both the force on the CDW and the CDW current: for a given force and position, both the relaxation and delay times are inversely proportional to the CDW current as temperature is varied. The long delay times (∼ 100 μs) for large CDW currents suggest that the strain response involves the motion of macroscopic objects, presumably CDW phase dislocation lines. We have done frequency domain simulations to study charge-density-wave (CDW) polarization dynamics when symmetric bipolar square current pulses of different frequencies and amplitudes are applied to the sample, using parameters appropriate for NbSe3 at T = 90 K. The frequency dependence of the strain at one fixed position was fit to the same modified harmonic oscillator response and the behavior of the parameters as functions of current and position are discussed. Delay times increase nonlinearly with distance from the current contacts again, indicating that these are intrinsic to the CDWwith the strain effectively flowing from the contact. For a fixed position and high currents the relaxation time increases with decreasing current, but for low currents its behavior is strongly dependent on the distance between the current contact and the sample ends. This fact clearly shows the effect of the phase-slip process needed in the current conversion process at the contacts. The relaxation and delay times computed (∼ 1 μs) are much shorter than observed in blue bronze (> 100 μs), as expected because NbSe3 is metallic whereas K0.3MoO3 is semiconducting. While our simulated results bear a qualitative resemblance with those obtained in blue bronze, we can not make a quantitative comparison with the K0.3MoO3 results since the CDW in our simulations is current driven, whereas the electro-optic experiment was voltage driven. Different theoretical models predict that for voltages near the threshold Von, quantities such as the dynamic phase velocity correlation length and CDW velocity vary as ξ ∼ |V/Von − 1| −ν and v ∼ |V/Von − 1|ξ with ν ∼ 1/2 and ζ = 5/6. Additionally, a weakly divergent behavior for the diffusion constant D ∼ |V/Von − 1|−2ν+ζ is expected. Motivated by these premises and the fact that no convincing experimental evidence is known, we carried out measurements of the parameters that govern the CDW repolarization dynamic for voltages near threshold. We found that for most temperatures considered the relaxation time still increases for voltages as small as 1.06Von indicating that the CDW is still in the plastic and presumably in the noncritical limit. However, at one temperature we found that the relaxation time saturates with no indication of critical behavior, giving a new upper limit to the critical regime, of |V/Von − 1| < 0.06.
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Hamm, Joachim. "Spatio-temporal and polarisation dynamics of semiconductor microcavity lasers." [S.l. : s.n.], 2004. http://www.bsz-bw.de/cgi-bin/xvms.cgi?SWB12103646.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Leeson, Jesse. "The dynamics of polarization in communication fiber." Thesis, University of Ottawa (Canada), 2009. http://hdl.handle.net/10393/28348.

Повний текст джерела
Анотація:
Here a temperature stable optical fiber current sensor based on the Sagnac loop interferometer and a cavity formed from two Faraday rotation mirrors is developed and tested. To the best of the author's knowledge a cavity composed of two Faraday rotation mirrors has never been used for the measurement of alternating currents. For the first time, it is shown that the maximum Faraday rotation angle for a long, static optical fiber is input polarization insensitive. Also, linear birefringence is shown to quench this angle in long optical fiber. The polarization dynamics in an optical ground wire network, for a summer period and a fall period, are reported for the first time. The highest-speed polarization changes are attributed to the high-voltage power line, i.e., the electrical current. A novel spectral analysis polarization optical time domain reflectometry method, that uses an induced birefringent event, is shown to work in long optical fiber.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Zhao, Dong [Verfasser]. "Polarization dynamics in ferroelectric thin films / Dong Zhao." Mainz : Universitätsbibliothek Mainz, 2018. http://d-nb.info/1155509595/34.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Книги з теми "Polarization dynamics of VCSEL"

1

Calderón, Oscar, and J. M. Guerra. Trends in spatiotemporal dynamics in lasers: Instabilities, polarization dynamics, and spatial structures, 2005. Trivandrum, Kerala, India: Research Signpost, 2005.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Yu, Haibo. Biomolecular simulation: Inclusion of polarizability, prediction of conformational stability, and analysis of peptide folding and association. Aachen: Shaker Verlag, 2004.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Gaĭduk, Vladimir I. Dielectric relaxation and dynamics of polar molecules. Singapore: World Scientific, 1999.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

1926-, Barut A. O., ed. Polarization dynamics in nuclear and particle physics: Proceedings of the 2nd Adriatico Research Conference, Trieste, Italy, 7-10 January 1992. Singapore: World Scientific, 1993.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Tratnik, Michael. Nonlinear polarization dynamics. 1987.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Dynamics of American Democracy: Partisan Polarization, Political Competition and Government Performance. University Press of Kansas, 2020.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Patashnik, Eric M., and Wendy J. Schiller. Dynamics of American Democracy: Partisan Polarization, Political Competition and Government Performance. University Press of Kansas, 2020.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Patashnik, Eric M., and Wendy J. Schiller. Dynamics of American Democracy: Partisan Polarization, Political Competition and Government Performance. University Press of Kansas, 2020.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Benkler, Yochai, Robert Faris, and Hal Roberts. Polarization in American Politics. Oxford University Press, 2018. http://dx.doi.org/10.1093/oso/9780190923624.003.0010.

Повний текст джерела
Анотація:
This chapter reviews the political science literature on polarization, showing that polarization in American politics long precedes the internet and results primarily from asymmetric political-elite-driven dynamics. This chapter first considers the polarization of political elites and the public before discussing how social identity begets party affiliation that helps explain why polarization can take on such deeply affective negative responses to partisans of the other party. The chapter shows that party elites, in particular elected representatives, have experienced significant party polarization in the sense that liberals and conservatives have mostly sorted themselves into Democrats and Republicans, respectively, and that the most visible component of this move was the realignment of Southern Democrats to the Republican Party. The broader population, if it has polarized at all, has polarized affectively—in the way it feels about the other party—rather than ideologically, or the practical policy preferences it holds.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

1926-, Barut A. O., Onel Y, and Penzo A, eds. Spin and polarization dynamics in nuclear & particle physics: Trieste, Italy, 12-15 January 1988. Singapore: World Scientific, 1990.

Знайти повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
Більше джерел

Частини книг з теми "Polarization dynamics of VCSEL"

1

Panajotov, Krassimir, and Franco Prati. "Polarization Dynamics of VCSELs." In Springer Series in Optical Sciences, 181–231. Berlin, Heidelberg: Springer Berlin Heidelberg, 2012. http://dx.doi.org/10.1007/978-3-642-24986-0_6.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Vatin, Jeremy, Damien Rontani, and Marc Sciamanna. "Polarization Dynamics of VCSELs Improves Reservoir Computing Performance." In Artificial Neural Networks and Machine Learning – ICANN 2019: Workshop and Special Sessions, 180–83. Cham: Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-30493-5_20.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Sommer, Annkatrin Madlen. "Attosecond Polarization Spectroscopy." In Ultrafast Strong Field Dynamics in Dielectrics, 39–74. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-41207-8_6.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Proietti, Carlo. "The Dynamics of Group Polarization." In Logic, Rationality, and Interaction, 195–208. Berlin, Heidelberg: Springer Berlin Heidelberg, 2017. http://dx.doi.org/10.1007/978-3-662-55665-8_14.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Smirl, Arthur L. "Measuring Ultrafast Polarization Dynamics: POLLIWOG." In Frequency-Resolved Optical Gating: The Measurement of Ultrashort Laser Pulses, 375–89. Boston, MA: Springer US, 2000. http://dx.doi.org/10.1007/978-1-4615-1181-6_23.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

David, D., D. D. Holm, and M. V. Tratnik. "Chaotic Behavior in Nonlinear Polarization Dynamics." In Solitons in Physics, Mathematics, and Nonlinear Optics, 45–63. New York, NY: Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4613-9033-6_3.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Brixner, T., G. Krampert, T. Pfeifer, R. Selle, G. Gerber, M. Wollenhaupt, O. Graefe, C. Horn, D. Liese, and T. Baumert. "Adaptive polarization control of molecular dynamics." In Springer Series in Chemical Physics, 864–66. Berlin, Heidelberg: Springer Berlin Heidelberg, 2005. http://dx.doi.org/10.1007/3-540-27213-5_263.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Aouragh, M. Driss, M. Hadda, and M. Tilioua. "On Polarization Dynamics in Ferroelectric Materials." In Differential and Difference Equations with Applications, 265–72. Cham: Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32857-7_25.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Minty, Michiko G., and Frank Zimmermann. "Polarization Issues." In Particle Acceleration and Detection, 239–62. Berlin, Heidelberg: Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-662-08581-3_10.

Повний текст джерела
Анотація:
AbstractThe study of spin dynamics in synchrotrons has evolved over the years as has the desire for achieving polarized particle beams of the highest possible beam energies. A selection of reviews of the dynamics of polarized beams may be found in [1]–[9]. In this chapter, we focus on experimental data and describe spin transport in circular accelerators and transport lines. Except where explicitly mentioned, radiative effects in electron accelerators or very high energy proton accelerators are not treated here. We begin with a review of the Thomas-BMT equation for spin motion. This will be given in terms of the SU(2) spinor representation. Spinor algebra will be introduced and applied in the description of techniques used for preserving the beam polarization during acceleration through depolarizing resonances at moderate beam energies.
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Fossheim, Kristian. "Phonon Echoes, Polarization Echoes, and Acoustic Phase Conjugation In Solids." In Nonequilibrium Phonon Dynamics, 277–312. Boston, MA: Springer US, 1985. http://dx.doi.org/10.1007/978-1-4613-2501-7_7.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Тези доповідей конференцій з теми "Polarization dynamics of VCSEL"

1

Vatin, Jeremy, Damien Rontani, and Marc Sciamanna. "Reservoir Computing using VCSEL Polarization Dynamics." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8872562.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Valle, Ángel, Ana Quirce, Cristina de Dios Fernandez, Luis Pesquera, and Pablo Acedo. "Theoretical study of polarization dynamics in VCSEL-based optical frequency combs." In Semiconductor Lasers and Laser Dynamics, edited by Krassimir Panajotov, Marc Sciamanna, and Rainer Michalzik. SPIE, 2018. http://dx.doi.org/10.1117/12.2306471.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Doumbia, Yaya, Delphine Wolfersberger, Krassimir Panajotov, and Marc Sciamanna. "Nonlinear Polarization Dynamics of VCSEL with Frequency Comb Injection." In Integrated Photonics Research, Silicon and Nanophotonics. Washington, D.C.: OSA, 2021. http://dx.doi.org/10.1364/iprsn.2021.if1a.6.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Vatin, Jeremy, Damien Rontani, and Marc Sciamanna. "High-Speed All-Optical Reservoir Computing Using VCSEL Polarization Dynamics." In 2018 European Conference on Optical Communication (ECOC). IEEE, 2018. http://dx.doi.org/10.1109/ecoc.2018.8535419.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
5

Bittner, Stefan, and Marc Sciamanna. "Complex spatio-temporal polarization dynamics of a broad-area VCSEL in continuous-wave operation." In Semiconductor Lasers and Laser Dynamics X, edited by Krassimir Panajotov, Marc Sciamanna, and Sven Höfling. SPIE, 2022. http://dx.doi.org/10.1117/12.2620711.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
6

Hong, Yanhua, Jon Paul, Paul S. Spencer, and K. Alan Shore. "Anticorrelation polarization dynamics in VCSELs." In Optics/Photonics in Security and Defence, edited by Lars J. Sjöqvist, Rebecca A. Wilson, and Thomas J. Merlet. SPIE, 2006. http://dx.doi.org/10.1117/12.690177.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
7

Quirce, A., C. de Dios, A. Valle, E. Prior, L. Pesquera, K. Panajotov, J. Palaci, P. Meissner, and P. Acedo. "VCSEL-Based Optical Frequency Combs: Study of its Polarization Dynamics under Gain Switching and Polarization Selective Optical Injection Locking." In 2018 20th International Conference on Transparent Optical Networks (ICTON). IEEE, 2018. http://dx.doi.org/10.1109/icton.2018.8473680.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
8

Gatare, I., M. Sciamanna, K. Panajotov, and M. Nizette. "Bifurcation and nonlinear dynamics accompanying polarization switching in a VCSEL subject to orthogonal optical injection." In 2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference. IEEE, 2007. http://dx.doi.org/10.1109/cleoe-iqec.2007.4385926.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
9

Albert, Jan, Krassimir P. Panajotov, Guy Verschaffelt, Bob Nagler, Hugo Thienpont, Irina P. Veretennicoff, Jan Danckaert, et al. "Polarization switching dynamics in single-mode VCSELs." In Symposium on Integrated Optics, edited by Kent D. Choquette and Chun Lei. SPIE, 2001. http://dx.doi.org/10.1117/12.424812.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
10

Hegarty, Stephen P., Guillaume Huyet, John G. McInerney, and Hua Li. "Polarization dynamics and intensity noise in VCSELs." In Photonics West '97, edited by Marek Osinski and Weng W. Chow. SPIE, 1997. http://dx.doi.org/10.1117/12.275561.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.

Звіти організацій з теми "Polarization dynamics of VCSEL"

1

Geib, Kent Martin, Gregory Merwin Peake, Joel Robert Wendt, Darwin Keith Serkland, and Gordon Arthur Keeler. VCSEL polarization control for chip-scale atomic clocks. Office of Scientific and Technical Information (OSTI), January 2007. http://dx.doi.org/10.2172/902214.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
2

Richardson, Dean, and Rolf Binder. Ultrafast Polarization Switching Dynamics in Vertical-Cavity Surface-Emitting Lasers. Fort Belvoir, VA: Defense Technical Information Center, March 1998. http://dx.doi.org/10.21236/ada341577.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
3

Morgen, Michael Mark. Femtosecond Raman induced polarization spectroscopy studies of coherent rotational dynamics in molecular fluids. Office of Scientific and Technical Information (OSTI), May 1997. http://dx.doi.org/10.2172/501549.

Повний текст джерела
Стилі APA, Harvard, Vancouver, ISO та ін.
4

Donnelly, Phoebe, and Boglarka Bozsogi. Agitators and Pacifiers: Women in Community-based Armed Groups in Kenya. RESOLVE Network, November 2022. http://dx.doi.org/10.37805/cbags2022.4.

Повний текст джерела
Анотація:
This research report is a case study of women’s participation in community-based armed groups (CBAGs) in Kenya. It examines: the diversity of women’s motivations to participate in community-based armed groups in Kenya; women’s roles and agency within community-based armed groups, communal conflicts, as well as community security and peacebuilding structures; and gender dynamics in conflict ecosystems, including social perceptions about women’s engagement in conflict. This case study contributes to the literature on women and CBAGs by examining the variations in their engagement across a single country, based on diverse local contexts. Data collection sites for the study included 1) the capital city, Nairobi; 2) Isiolo County; 3) Marsabit County; 4) Mombasa County; and 5) Bungoma County. Together, these sites provide insight into local conflict dynamics in rural and urban areas; on country borders and on the coast; and in communities with ethnic polarization, land conflicts, criminal gangs, and histories of violent extremism and secessionist movements. The Kenyan research team employed a qualitative approach to data collection through key informant interviews (KIIs), focus group discussions (FGDs), and the use of secondary source data. The findings show that there is no single template for understanding women’s engagement with CBAGs; instead, women’s motivations and roles within these groups are varied and highly contextual, just as with the motivations and roles of men. This study demonstrates the utility of context-specific analyses at the sub-national level to capture the range of women’s participation in and engagement with CBAGs and their greater contributions to the local security landscape.
Стилі APA, Harvard, Vancouver, ISO та ін.
Також вас можуть зацікавити розширені добірки на тему "Polarization dynamics of VCSEL" для конкретних типів джерел:
Статті в журналах Дисертації Книги
Ми пропонуємо знижки на всі преміум-плани для авторів, чиї праці увійшли до тематичних добірок літератури. Зв'яжіться з нами, щоб отримати унікальний промокод!

До бібліографії