Bibliografie tematiche / Electrical-optical modulator

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Letteratura scientifica selezionata sul tema "Electrical-optical modulator"

Autore: Grafiati

Pubblicato: 12 ottobre 2024

Ultima modifica: 31 luglio 2025

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Articoli di riviste sul tema "Electrical-optical modulator"

M. A. Eid, Mahmoud, Ashraf S. Seliem, Ahmed Nabih Zaki Rashed, Abd El-Naser A. Mohammed, Mohamed Yassin Ali, and Shaimaa S. Abaza. "The key management of direct/external modulation semiconductor laser response systems for relative intensity noise control." Indonesian Journal of Electrical Engineering and Computer Science 21, no. 2 (2021): 968. http://dx.doi.org/10.11591/ijeecs.v21.i2.pp968-977.

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This study outlines the management of either direct or external modulation semiconductor laser systems for the key solution of bit rate up to 25 Gb/s under relative intensity noise (RIN) control. The bias and modulation peak currents based laser rate equations are optimized to achieve max Q factor and min bit error rate (BER) using first proposed model and optical/electrical signal power, optical/electrical signal to noise ratio are also enhanced using second proposed model. The percentage enhancement ratio in max. Q-factor and min. BER using first proposed model ranges fr

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Zhou, Zhipeng, Zean Li, Cheng Qiu, et al. "A Design of High-Efficiency: Vertical Accumulation Modulators Based on Silicon Photonics." Nanomaterials 13, no. 24 (2023): 3157. http://dx.doi.org/10.3390/nano13243157.

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On-chip optical modulators, which are capable of converting electrical signals into optical signals, constitute the foundational components of photonic devices. Photonics modulators exhibiting high modulation efficiency and low insertion loss are highly sought after in numerous critical applications, such as optical phase steering, optical coherent imaging, and optical computing. This paper introduces a novel accumulation-type vertical modulator structure based on a silicon photonics platform. By incorporating a high-K dielectric layer of ZrO2, we have observed an increase in modulation effici

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Supasai, Wisut, Apirat Siritaratiwat, Chavis Srichan, et al. "Enhancing modulation performance by design of hybrid plasmonic optical modulator integrating multi-layer graphene and TiO₂ on silicon waveguides." Nanotechnology 35, no. 31 (2024): 315201. http://dx.doi.org/10.1088/1361-6528/ad43f2.

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Abstract A novel way to enhance modulation performance is through the design of a hybrid plasmonic optical modulator that integrates multi-layer graphene and TiO2 on silicon waveguides. In this article, a design is presented of a proposed modulator based on the use of the two-dimensional finite difference eigenmode solver, the three-dimensional eigenmode expansion solver, and the CHARGE solver. Leveraging inherent graphene properties and utilizing the subwavelength confinement capabilities of hybrid plasmonic waveguides (HPWs), we achieved a modulator design that is both compact and highly eff

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Thomson, David J., Weiwei Zhang, Ke Li, et al. "Silicon photonics for high data rate applications -INVITED." EPJ Web of Conferences 238 (2020): 01005. http://dx.doi.org/10.1051/epjconf/202023801005.

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The high speed conversion of signals between the optical and electrical domains is crucial for many key applications of silicon photonics. Electro-optic modulators integrated with electronic drive amplifiers are typically used to convert an electrical signal to the optical domain. Design of these individual elements is important to achieve high performance, however a true optimisation requires careful co-design of the photonic and electronic components considering the properties of each other. Here we present our recent results in this area together with a MOSCAP type modulator with the potent

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Gosciniak, Jacek. "Ultra-compact nonvolatile plasmonic phase change modulators and switches with dual electrical–optical functionality." AIP Advances 12, no. 3 (2022): 035321. http://dx.doi.org/10.1063/5.0082094.

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Programmable photonic integrated circuits (PICs) are the foundation of on-chip optical technologies, with the optical modulators being one of the main building blocks of such programmable PICs. However, most of the available modulators suffer from high power consumption, low response time, and large footprint. Additionally, they show a large resistance modulation; thus, they require high switching voltage. In consequence, they operate much above CMOS-compatible voltages of 1.2 V and with high insertion losses. Furthermore, the state and information they carry are lost once the power is turned

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Tahersima, Mohammad H., Zhizhen Ma, Yaliang Gui, et al. "Coupling-enhanced dual ITO layer electro-absorption modulator in silicon photonics." Nanophotonics 8, no. 9 (2019): 1559–66. http://dx.doi.org/10.1515/nanoph-2019-0153.

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AbstractElectro-optic signal modulation provides a key functionality in modern technology and information networks. Photonic integration has not only enabled miniaturizing photonic components, but also provided performance improvements due to co-design addressing both electrical and optical device rules. The millimeter to centimeter footprint of many foundry-ready electro-optic modulators, however, limits density scaling of on-chip photonic systems. To address these limitations, here we experimentally demonstrate a coupling-enhanced electro-absorption modulator by heterogeneously integrating a

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Wu, Zhaoyang, Shuqing Lin, Siyuan Yu, and Yanfeng Zhang. "Submilliwatt Silicon Nitride Thermo-Optic Modulator Operating at 532 nm." Photonics 11, no. 3 (2024): 213. http://dx.doi.org/10.3390/photonics11030213.

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Optical phase control is essential for optical beam steering applications. The silicon nitride thermo-optic modulator generally suffers from high electrical power consumption. Microresonator and multipass structures could reduce the electrical power consumption of silicon nitride thermo-optic modulators, with the drawback of a narrow operating bandwidth and high insertion loss. We demonstrate a single-pass silicon nitride thermo-optic phase modulator at 532 nm with low insertion loss and low power consumption, achieving a π phase shift power consumption down to 0.63 mW in a Mach–Zehnder switch

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Feng, Song, and Bin Xue. "Micro-Nano Electro-Optic Modulator Structure Based on the Si/SiGe/Si Material." Journal of Nanoelectronics and Optoelectronics 15, no. 6 (2020): 693–99. http://dx.doi.org/10.1166/jno.2020.2796.

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The modulation power consumption and the modulation efficiency are the key parameters of the electro-optic modulator, which directly affect the electro-optic modulator's photoelectric properties. Improving the performance of the electro-optic modulator, a micro-nano electro-optic modulator structure based on the Si/SiGe/Si material is proposed in this paper, which has low power consumption and high efficiency. After the plasma dispersion effects and the thermo-optic effects are analyzed, we can know that the performance of the electro-optic modulator could be affected by the carrier concentrat

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Ogawa, Kensuke. "Increase in Modulation Speed of Silicon Photonics Modulator with Quantum-Well Slab Wings: New Insights from a Numerical Study." Photonics 11, no. 6 (2024): 535. http://dx.doi.org/10.3390/photonics11060535.

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A Silicon Photonics modulator is a high-speed photonic integrated circuit for optical data transmission in high-capacity optical networks. Silicon Photonics modulators in the configuration of a Mach–Zehnder interferometer, in which a PN-junction rib-waveguide phase shifter is inserted in each arm of the interferometer, are studied in this paper because of their superior performance of high-quality optical data generation in a wide range of spectral bands and their simplicity in fabrication processes suitable to production in foundries. Design, fabrication, and fundamental characteristics of Si

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Hu, Xiao, and Jian Wang. "Design of graphene-based polarization-insensitive optical modulator." Nanophotonics 7, no. 3 (2018): 651–58. http://dx.doi.org/10.1515/nanoph-2017-0088.

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AbstractBy exploiting the electroabsorption effect of graphene, we present a graphene-based polarization-insensitive optical modulator. The waveguide structure consists of a silica substrate, high-index silicon strip waveguide, Si3N4dielectric spacer, two graphene layers, and two metal electrodes. The modulator performance is comprehensively studied in terms of attenuation, insertion loss, modulation depth, and bandwidth. We achieve broadband >16 dB attenuation graphene-based optical modulator over a 35 nm wavelength range (covering C band) with an imbalance of no >1 dB and insertion los

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Tesi sul tema "Electrical-optical modulator"

Harston, Geofrey Craig. "Swift Electro-Optic Modulator." BYU ScholarsArchive, 2003. https://scholarsarchive.byu.edu/etd/107.

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The Silicon Wafer Integrated Fiber Technology, SWIFT, is a novel platform for the development of photonic devices. SWIFT is comprised of an optical fiber, specifically a D-fiber in this work, embedded into a V-groove etched into a silicon wafer. This provides a method to secure the fiber and allows the use of standard semiconductor industry equipment and techniques in latter processing for device fabrication. The SWIFT platform is used as the basis for the development of a polarimetric in-fiber electro-optic modulator. The modulator is based on the application of a nonlinear optical polymer,

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Carns, Jennifer. "Semiconductor Optical Amplifier as a Phase Modulator for Short-Pulse Synthetic Aperture Ladar and Vibrometry." University of Dayton / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1335278035.

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Zhou, Sichao. "Complex Optical Fields Generation Using a Vectorial Optical Field Generator." University of Dayton / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1461689435.

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Andrikogiannopoulos, Nikolas I. "RF phase modulation of optical signals and optical/electrical signal processing." Thesis, Massachusetts Institute of Technology, 2006. http://hdl.handle.net/1721.1/42930.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 2006. This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. Includes bibliographical references (p. 125-127). Analog RF phase modulation of optical signals has been a topic of interest for many years, mainly focusing on Intensity Modulation Direct Detection (IMDD). The virtues of coherent detection combined with the advantages of Frequency Modulation, however, have not been explored thor

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Whitson, Michael J. (Michael Joshua). "Fourier-based optical analysis of a membrane mirror spatial light modulator." Thesis, Massachusetts Institute of Technology, 2017. http://hdl.handle.net/1721.1/113448.

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Thesis: M. Eng., Massachusetts Institute of Technology, Department of Electrical Engineering and Computer Science, 2017. This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections. Cataloged from student-submitted PDF version of thesis. Includes bibliographical references (pages 209-214). This thesis presents the operational theory and engineering numerical models for the operation of a schlieren-like Fourier optical system, used to read out a phase-only spatial light modulator (SLM) for phase to

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Nguyen, Thi Hao Nhi. "Broadband mid-infrared integrated electro-optical modulators and photodetectors in SiGe photonic circuits." Electronic Thesis or Diss., université Paris-Saclay, 2024. http://www.theses.fr/2024UPAST108.

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La spectroscopie dans la plage de longueurs d'onde du moyen infrarouge (2-20 µm) est une technique cruciale pour détecter et identifier des substances chimiques et biologiques. Dans ce contexte, les circuits photoniques intégrés à base de silicium (Si) opérant dans cette plage spectrale sont hautement attractifs pour développer des systèmes de spectroscopie moyen infrarouge compacts, qui pourront avoir des applications dans la surveillance environnementale, le diagnostic médical et les communications spatiales. L'intégration de composants photoniques actifs, tels que des modulateurs électro-op

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Franco, Gabriella. "Optical and electrical frequency-modulated studies of nanocrystalline electrodes." Thesis, University of Bath, 1999. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.285274.

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Venditti, Michael B. "Temperature dependence of QCSE modulator and detector efficiency for free-space optical interconnect applications." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0016/MQ55032.pdf.

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Pasquali, González Elisa Co (Elisa Carolina) 1975. "Wideband optical frequency comb generator using a phase velocity-matched lithium tantalate electro-optic modulator." Thesis, Massachusetts Institute of Technology, 1998. http://hdl.handle.net/1721.1/47719.

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Thesis (M.Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1998. Includes bibliographical references (leaves 74-75). A wideband optical frequency comb generator can be built using an electro-optic modulator that is driven at a frequency of several GHz and that is enclosed in an optical cavity. When light is circulated within the optical cavity, multiple passes through the modulator produce a spectrum centered at the carrier frequency with hundreds of sidebands spaced at the modulation frequency, with a comb span limited only by the mater

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Krol, Mark Francis 1966. "High contrast, all-optical gallium aluminum indium arsenide multiple quantum well asymmetric reflection modulator at 1.3 μm". Thesis, The University of Arizona, 1992. http://hdl.handle.net/10150/291348.

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A high contrast, low intensity GaAlInAs/AlInAs multiple quantum well asymmetric Fabry-Perot reflection modulator for operation at 1.3 μm has been demonstrated. The reflection modulator takes advantage of the large absorptive and refractive nonlinearities associated with saturating the heavy-hole exciton resonance. We achieve an on/off contrast ratio in excess of 1000:1 (30 dB) and an insertion loss of 2.2 dB at a pump intensity of 30 kW/cm², corresponding to a carrier density of 4.5 x 10¹⁷ cm⁻³ The modulator was demonstrated to have a large operating bandwidth, achieving an on/off contrast rat

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Libri sul tema "Electrical-optical modulator"

1927-, Tamir Theodor, Griffel Giora, Bertoni Henry L, and Weber Research Institute International Symposium on Guided-Wave Optoelectronics: Device Characterization, Analysis, and Design (4th : 1994 : Brooklyn, N.Y.), eds. Guided-wave optoelectronics: Device characterization, analysis, and design. Plenum Press, 1995.

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(Editor), Theodor Tamir, Giora Griffel (Editor), and Henry L. Bertoni (Editor), eds. Guided-Wave Optoelectronics: Device Characterization, Analysis, and Design. Springer, 1995.

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Capitoli di libri sul tema "Electrical-optical modulator"

Kumar, Sanjay, Ghanshyam Singh, Vijay Janyani, et al. "MgO Doped Lithium Niobate Waveguides Based All Optical Modulator." In Lecture Notes in Electrical Engineering. Springer Singapore, 2018. http://dx.doi.org/10.1007/978-981-10-7395-3_20.

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Agarwal, Saurabh, Jitendra K. Mishra, and Vishnu Priye. "Design and Analysis of Thermo-optic Photonic Crystal Waveguide-Based Optical Modulator." In Lecture Notes in Electrical Engineering. Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-16-2761-3_87.

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Amiri, Iraj Sadegh, and Masih Ghasemi. "Optical Fibre Dispersions and Future Contributions on Electro-optic Modulator System Optimizations." In SpringerBriefs in Electrical and Computer Engineering. Springer International Publishing, 2019. http://dx.doi.org/10.1007/978-3-030-10585-3_6.

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Garrett, Steven L. "Radiation and Scattering." In Understanding Acoustics. Springer International Publishing, 2020. http://dx.doi.org/10.1007/978-3-030-44787-8_12.

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Abstract At this point, we have made a rather extensive investigation into the sounds that excite Helmholtz resonators as well as the departures from equilibrium that propagate as plane waves through uniform or inhomogeneous media. We have not, as yet, dealt with how those sounds are actually produced in fluids. Our experience tells us that sound can be generated by vibrating objects (e.g., loudspeaker cones, stringed musical instruments, drums, bells), by modulated or unstable flows (e.g., jet engine exhaust, whistles, fog horns, speech), by electrical discharges in the atmosphere (i.e., thun

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"Polymers for Electro-Optic Modulator Waveguides." In Electrical and Optical Polymer Systems. CRC Press, 1998. http://dx.doi.org/10.1201/9781482269888-24.

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"Fabrication and Characterization of Electro-optic Polymer Waveguide Modulator for Photonic Applications." In Electrical and Optical Polymer Systems. CRC Press, 1998. http://dx.doi.org/10.1201/9781482269888-23.

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Jena, Debdeep. "Heavenly Light: Solar Cells and Photodetectors." In Quantum Physics of Semiconductor Materials and Devices. Oxford University PressOxford, 2022. http://dx.doi.org/10.1093/oso/9780198856849.003.0028.

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Abstract This chapter discusses the following questions: • How is light energy converted to electrical energy by semicon- ductor solar cells, and what are the fundamental limits of their efficiencies? • How are optical absorption processes in semiconductors used to make efficient photodetectors, and over what ranges of wave- lengths, timescales, and efficiencies can they operate? • What is the operating principle of semiconductor based optical modulators, and what are their limitations?

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Nadimi Goki, Pantea, Antonio Tufano, Fabio Cavaliere, and Luca Potì. "SOA Model and Design Guidelines in Lossless Photonic Subsystem." In New Advances in Semiconductors [Working Title]. IntechOpen, 2022. http://dx.doi.org/10.5772/intechopen.103048.

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We propose a new practical analytical model to calculate the performance of amplitude-modulated systems, including semiconductor optical amplifiers (SOA). Lower and upper-performance bounds are given in terms of signal quality factor (Q) concerning the input signal pattern. The target is to provide a design tool for gain elements included in photonic integrated circuits (PIC) to compensate for their insertion loss. This subject is a critical issue, for example, in the arrays of optical transmitters with silicon photonics modulators used for interconnection applications. Due to implementation l

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E. Abejide, Adebayo, Madhava R. Kota, Sushma Pandey, et al. "Direct and External Hybrid Modulation Approaches for Access Networks." In Network-on-Chip [Working Title]. IntechOpen, 2021. http://dx.doi.org/10.5772/intechopen.96085.

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The demand for low-cost high-speed transmission is a major challenge for 5G future networks. To meet this optical communication demand, holistic and painstaking approaches are required in designing a simplified system model. Since the demands for high bandwidth are growing at unprecedented speed as we approach the Zettabyte era, it is crucial to minimize chromatic dispersion (CD) associated to high bit-rate signals. Mitigating CD electronically comes at high cost which may not be compatible with 5G. Photonic Integrated Circuit (PIC) as an enabler for fast speed optical transmission is still un

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Akhai, Shalom, Jagdeep Walia, Bhupinder Singh Bhullar, and Amandeep Singh Wadhwa. "Advances in Bandgap and Conductivity Engineering of Graphene-Based Semiconductors." In Advances in Chemical and Materials Engineering. IGI Global, 2024. http://dx.doi.org/10.4018/979-8-3693-8257-8.ch007.

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Graphene, a single layer of carbon atoms, is known for its exceptional electrical, optical, and mechanical properties. However, its lack of a natural bandgap and conductivity control issues limit its use in semiconductor applications. This review explores advancements in bandgap engineering and conductivity management of graphene-based semiconductors, including chemical functionalization, structural modifications, and hybrid materials integration. Strategies for manipulating graphene's conductivity, such as doping, defect engineering, and external field modulation, are also discussed. These in

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Atti di convegni sul tema "Electrical-optical modulator"

Brès, Camille-Sophie. "Flexible and Addressable 2nd Order Nonlinearities in Microresonators." In Optical Fiber Communication Conference. Optica Publishing Group, 2025. https://doi.org/10.1364/ofc.2025.w1i.1.

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I will discuss how optical and electrical poling of silicon nitride microresonators makes the platform an emerging candidate for χ(2) integrated photonics, both for light conversion on-chip and linear electro-optic effect . I will show results of a monolithic modulator and how we address engineering constraints typically faced in ring resonators when aiming for broadband second harmonic generation. Full-text article not available; see video presentation

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Jia, He, and Feng Li. "Optical Modulator Mode Analysis Based on Lithium Niobate Thin Film." In 2025 International Conference on Electrical Drives, Power Electronics & Engineering (EDPEE). IEEE, 2025. https://doi.org/10.1109/edpee65754.2025.00209.

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Maldonado-Castillo, L. E., O. Spitz, S. Koyu, M. Berrill, and Y. Braiman. "Coherent High-power Pulsing in a Gain-switched Array of Laser Diodes with Filtered Feedback." In CLEO: Applications and Technology. Optica Publishing Group, 2024. http://dx.doi.org/10.1364/cleo_at.2024.jtu2a.38.

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Optimal roundtrip cavity time in gain-switched laser diode array with filtered optical feedback is numerically investigated. Combined pulse intensity and coherence exhibit peaks located at multiples of integer and half-integer of the electrical modulation period.

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Nowak, Michal P., Tomasz Stefaniuk, Tomasz Wojciechowski, Marcin Jakubaszek, Przemyslaw Wachulak, and Piotr Nyga. "Thin layers of vanadium dioxide as electrical modulators of the optical signal amplitude." In Metamaterials XV, edited by Kęstutis Staliūnas, Vladimír Kuzmiak, and Tomasz Stefaniuk. SPIE, 2025. https://doi.org/10.1117/12.3056145.

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Hirano, Ryosuke, Nobuhide Yokota, and Hiroshi Yasaka. "Stabilized Optical Negative Feedback Lasers with Direct Current Modulation and Electrical Feedback." In 2024 IEEE 29th International Semiconductor Laser Conference (ISLC). IEEE, 2024. http://dx.doi.org/10.1109/islc57752.2024.10717391.

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Liu, Yanming, Mike Grove, and Paul R. Prucnal. "Multiple quantum well waveguide modulator for fiber-optic interconnects." In OSA Annual Meeting. Optica Publishing Group, 1991. http://dx.doi.org/10.1364/oam.1991.wd4.

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It is well-known that electrical I/O bottlenecks in integrated circuits can be remedied with optical interconnects. An optical interconnect link requires a transmitter to convert intrachip electrical signals into optical signals suitable for fiber-optic interchip communication, and a receiver to reconvert optical signals at the fiber output into electrical signals on the chip. We consider an approach using an off-chip laser as an optical power supply, connected via optical fiber to an on-chip electrooptic modulator that imprints the distributed optical power with the desired information. Optic

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Kissa, Karl, R. G. Hunsperger, Charles S. Ih, and X. Wang. "Standing-wave SAW modulator for optical communication." In OSA Annual Meeting. Optica Publishing Group, 1989. http://dx.doi.org/10.1364/oam.1989.thy1.

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Progress has been made on an integrated acoustooptic modulator needed for a proposed optical communication network. The system, which is described elsewhere,1 can employ a standing wave surface acoustic wave (SWSAW) to generate microwave subcarriers needed to multiplex analog and/or digital signals. Previous experiments demonstrated intensity modulation of a guided optical beam at a frequency of 70 MHz by a SWSAW which diffracted light in the Raman-Nath regime.1,2 Intensity modulation of an optical beam at 600 MHz has been observed recently using a Bragg version of this modulator. Superimposin

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Okhotnikov, O. G., and F. M. Araújo. "Optical pulse generation by manipulations in FM spectra." In The European Conference on Lasers and Electro-Optics. Optica Publishing Group, 1996. http://dx.doi.org/10.1364/cleo_europe.1996.ctuk50.

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The method of optical pulse generation described here employs an optical switching of CW phase-modulated signal using Sagnac interferometer incorporating asymmetrically located phase modulator. The phase modulator provides a dual function: (i) optical spectrum broadening and (ii) phase shifting between counterpropagating fields to achieve the switching. Owing to nonreciprocity introduced by the phase modulator, the totally reflecting loop becomes totally transmitting, when an instantaneous differential phase shift ΔΦ=π between counterpropagating fields is attained. It was found that in the fre

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Rubio Rivera, Hector A., Matthew van Niekerk, and Stefan F. Preble. "Silicon Photonic Optical-Electrical-Optical Modulator Neuron Verilog-A Model." In CLEO: Applications and Technology. OSA, 2021. http://dx.doi.org/10.1364/cleo_at.2021.jtu3a.125.

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Pezzaniti, J. Larry, Elizabeth A. Sornsin, Russell A. Chipman, and B. Mansoorian. "Characterization of the optical quality and modulating properties of a PLZT modulator through Mueller matrix imaging polarimetry." In Spatial Light Modulators and Applications. Optica Publishing Group, 1995. http://dx.doi.org/10.1364/slma.1995.lthb3.

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The Physics Department at the University of Alabama in Huntsville (UAH) in collaboration with the Electrical and Computer Engineering Department of University of California, San Diego (UCSD) has applied Mueller matrix imaging polarimetry[1] to quantifying the polarization modulating properties of PLZT spatial light modulators. The purpose of this study was to evaluate the optical quality of a wire-bonded transmissive PLZT (9/65/35) modulator array, the uniformity of modulation across pixels, and the cross-talk between adjacent pixels.

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