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Journal articles on the topic 'Heterodyne effect'

Author: Grafiati

Published: 8 June 2024

Last updated: 31 July 2025

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1

Tan, Zhenkun, Jiao Wang, Yingxiu Kong, Sichen Lei, and Pengfei Wu. "An Effective Method for Enhancing Heterodyne Efficiency by Comparing the Effect of Degree of Polarization on an Uplink Path and a Downlink Path." Photonics 9, no. 11 (2022): 798. http://dx.doi.org/10.3390/photonics9110798.

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By analyzing the effect of the degree of polarization (DoP) of the partially coherent Gaussian Schell-model (GSM) beam on a heterodyne system of an uplink path and a downlink path, we developed an innovative and noteworthy theory according to which σsy (signal beam waist radius in the y direction component) and δSyy (coherence length of the signal beam in the yy direction component) had a more significant impact on heterodyne efficiency and DoP than the turbulence term on uplink and downlink paths. Namely, the DoP and heterodyne efficiency of an uplink path are higher than that of a downlink p

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2

Yamamoto, Naoko, Yuya Shinohara, Hiroyuki Kishimoto, Norihiro Matsumoto, and Yoshiyuki Amemiya. "Dynamics of nanoparticles in elongated rubber investigated with heterodyne XPCS." Acta Crystallographica Section A Foundations and Advances 70, a1 (2014): C1331. http://dx.doi.org/10.1107/s2053273314086689.

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Addition of nanoparticles into rubber is indispensable process for production of rubbery materials, as it improves the viscoelastic and mechanical properties of rubber (reinforcement effect). However, the understanding of reinforcement effect is far from satisfactory in spite of many studies. Further microscopic-scale investigation is required for controlling and improving the properties of rubbery materials. Aiming to construct a microscopic model of filled rubber under elongation, we have investigated nanoparticle dynamics in uniaxially stretched rubber using heterodyne X-ray photon correlat

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3

Cuberes, M. Teresa. "Intermittent-Contact Heterodyne Force Microscopy." Journal of Nanomaterials 2009 (2009): 1–5. http://dx.doi.org/10.1155/2009/762016.

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Heterodyne Force Microscopy opens up a way to monitor nanoscale events with high temporal sensitivity from the quasistatic cantilever mechanical-diode response taking advantage of the beat effect. Here, a novel heterodyne ultrasonic force method is proposed, in which the cantilever is driven in amplitude-modulation mode, at its fundamental flexural eigenmode. Ultrasonic vibration in the megahertz range is additionally input at the tip-sample contact from the cantilever base and from the back of the sample. The ultrasonic frequencies are chosen in such a way that their difference is coincident

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4

Reno, Jessica, Bhanu Korremula, and Dominick J. Casadonte. "Heterodyne I: Enhancing sonochemical efficiency through application of the heterodyne effect: An initial study." Ultrasonics Sonochemistry 56 (September 2019): 143–49. http://dx.doi.org/10.1016/j.ultsonch.2019.04.014.

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5

Song, Xue, Guofeng Shen, and Dmitry Grishenkov. "A comparative study on detection of polymer-shelled microbubbles by different excitation pulses." Journal of the Acoustical Society of America 154, no. 1 (2023): 482–93. http://dx.doi.org/10.1121/10.0020293.

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Contrast agents are widely used in ultrasound imaging. Many imaging techniques have been developed to improve the contrast between tissue and the agents, based on the nonlinear response of microbubbles. In this study, heterodyne excitation was introduced and was compared with traditional sinusoidal signal and chirp excitation for visualizing polymer-shelled microbubbles and degassed water in a tissue-mimicking phantom. Pulse inversion technique was implemented under plane wave (PW) and focused imaging mode. Image enhancement was evaluated by contrast-to-tissue ratio (CTR) at different transmit

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6

Gershgorin, B., V. Yu Kachorovskii, Y. V. Lvov, and M. S. Shur. "Field effect transistor as heterodyne terahertz detector." Electronics Letters 44, no. 17 (2008): 1036. http://dx.doi.org/10.1049/el:20080737.

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7

Izumi, Ryo, Yan Jun Li, Yoshitaka Naitoh, and Yasuhiro Sugawara. "Study of high–low KPFM on a pn-patterned Si surface." Microscopy 71, no. 2 (2022): 98–103. http://dx.doi.org/10.1093/jmicro/dfab055.

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Abstract Comparative measurements between frequency modulation Kelvin probe force microscopy (FM-KPFM) using low frequency bias voltage and heterodyne FM-KPFM using high frequency bias voltage were performed on the surface potential measurement. A silicon substrate patterned with p- and n-type impurities was used as a quantitative sample. The multi-pass scanning method in the measurements of FM-KPFM and heterodyne FM-KPFM was used to eliminate the effect of the tip–sample distance dependence. The measured surface potentials become lower in the order of the p-type region, n-type region and n+-t

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8

Xiong, Si Ya Dong, Yi Yang, Chao Peng, Zhen Rong Zhang, and Zheng Bin Li. "The Effect of Polarization Control in Loss-Compensated Recirculating Delayed Self-Heterodyne Interferometry Measurement of Laser Linewidth." Applied Mechanics and Materials 303-306 (February 2013): 859–62. http://dx.doi.org/10.4028/www.scientific.net/amm.303-306.859.

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In the implementation of the loss-compensated recirculating delayed self-heterodyne interferometry (LC-RDSHI) measurement of laser linewidth, we observe the fluctuations among the different orders of beat spectra, which are not expected according to theoretical analysis and may lead to the distortion of lineshape and inaccurate estimation of the laser linewidth. To explain the observation, we in this paper simplify the polarization model in the recirculating heterodyne ring interferometer containing a polarization controller (PC) and point out the effect of the polarization control in the LC-R

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9

Belen’kii, Mikhail S. "Effect of atmospheric turbulence on heterodyne lidar performance." Applied Optics 32, no. 27 (1993): 5368. http://dx.doi.org/10.1364/ao.32.005368.

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10

Lin, Yao, John Schill, and Run-Wen Wang. "Instrumental noise effect in an optical heterodyne profiler." Applied Optics 33, no. 22 (1994): 5005. http://dx.doi.org/10.1364/ao.33.005005.

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11

Healey, P. "Effect of intermodulation in multichannel optical heterodyne systems." Electronics Letters 21, no. 3 (1985): 101. http://dx.doi.org/10.1049/el:19850070.

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12

Akchurin, G. G. "Laser heterodyne optovoltaic effect in the microwave range." Technical Physics Letters 32, no. 6 (2006): 514–16. http://dx.doi.org/10.1134/s1063785006060198.

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13

Glaab, Diana, Sebastian Boppel, Alvydas Lisauskas, Ullrich Pfeiffer, Erik Öjefors, and Hartmut G. Roskos. "Terahertz heterodyne detection with silicon field-effect transistors." Applied Physics Letters 96, no. 4 (2010): 042106. http://dx.doi.org/10.1063/1.3292016.

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14

Zheng, Ziqi, Qiaoxia Luo, Xian Wang, et al. "Comparison of Different Linewidth Measuring Methods for Narrow Linewidth Laser." Sensors 23, no. 1 (2022): 122. http://dx.doi.org/10.3390/s23010122.

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We experimentally demonstrate a fiber laser with different linewidths based on self-injection locking (SIL) and the stimulated Brillouin scattering effect. Based on the homemade fiber laser, the error origin, resolution, and applicable range of delayed self-heterodyne interferometry (DSHI), self-correlation envelope linewidth detection (SCELD) and Voigt fitting are investigated numerically and experimentally. The selection of the linewidth measuring method should meet the following conclusions: an approximately Lorentzian self-heterodyne spectrum without the pedestal and high-intensity sinusoi

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15

Guan, Ce, Zijing Zhang, Fan Jia, and Yuan Zhao. "Laser Heterodyne Detection Based on Photon Time–Domain Differential Detection Avoiding the Effect of Decoherence Phase Noise." Sensors 23, no. 23 (2023): 9435. http://dx.doi.org/10.3390/s23239435.

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Laser heterodyne detection (LHD) is a key velocimetry technique that provides better accuracy and sensitivity than direct laser detection. However, random phase noise can be introduced by the surface topography of the moving target undulation or atmospheric turbulence during transmission. The random phase noise causes the target echo to undergo decoherence, resulting in degradation of the signal-to-noise ratio (SNR). Here, we propose a novel LHD method based on photon time–domain differential detection. It can infer the heterodyne spectrum of the target echo and the local oscillator light from

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16

Tashakori, Shervin, Amin Baghalian, Volkan Y. Senyurek, Saman Farhangdoust, Dwayne McDaniel, and Ibrahim N. Tansel. "Composites Bond Inspection Using Heterodyne Effect and SuRE Methods." Shock and Vibration 2018 (July 19, 2018): 1–6. http://dx.doi.org/10.1155/2018/1361932.

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With increasing utilization of the composite materials in commercial and military applications, the longevity of composite bonds has become a crucial concern of the aerospace industry. In spite of the previous studies in the literature for characterization of bonding condition in composite materials, implementation of more advanced structural health monitoring (SHM) techniques are still required to ensure flight safety and quick inspections of structures. In this study, two different SHM methods were used to evaluate the strength of composite bonds by using two separate experimental setups. Fi

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17

HOU, Wenmei. "Effect of Beam Splitter on Nonlinearity in Heterodyne Interferometers." Chinese Journal of Mechanical Engineering 44, no. 09 (2008): 163. http://dx.doi.org/10.3901/jme.2008.09.163.

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18

Saikan, S., H. Miyamoto, Y. Tosaki, and A. Fujiwara. "Optical-density effect in heterodyne-detected accumulated photon echo." Physical Review B 36, no. 9 (1987): 5074–77. http://dx.doi.org/10.1103/physrevb.36.5074.

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19

Yamanishi, J., Y. Naitoh, Y. J. Li, and Y. Sugawara. "Heterodyne technique in photoinduced force microscopy with photothermal effect." Applied Physics Letters 110, no. 12 (2017): 123102. http://dx.doi.org/10.1063/1.4978755.

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20

Blin, Stephane, Philippe Nouvel, Annick Penarier, and Jeffrey Hesler. "Terahertz Heterodyne Communication Using GaAs Field-Effect Transistor Receiver." IEEE Electron Device Letters 38, no. 1 (2017): 20–23. http://dx.doi.org/10.1109/led.2016.2624782.

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21

Rawat, Banmali S., and Jie Si. "Effect of laser source nonlinearity on optical heterodyne interferometry." International Journal of Infrared and Millimeter Waves 17, no. 3 (1996): 507–26. http://dx.doi.org/10.1007/bf02088025.

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22

Ng, Boon Ping, S. H. Luen, Ying Zhang, and Y. C. Soh. "Optical Detection Using Multi-Wavelength Modulation." Key Engineering Materials 381-382 (June 2008): 325–28. http://dx.doi.org/10.4028/www.scientific.net/kem.381-382.325.

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In this paper, we proposed a method to attain a high sensitivity of weak optical signal detection by using the multi-wavelength modulation principle. In this method, the optical phase carrying the measurand is obtained by averaging the phases obtained in various orders of heterodyne harmonics. The employment of higher heterodyne harmonics reduces the drift effect in optical detection. The proposed method is demonstrated on the nano-scale displacement measurement by using a single channel fiber interferometer. In the experiment, the displacement is simulated by moving a mirror with a piezoelect

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23

Chen, Zhiwei, Chao Fang, Zhenpeng Wang, Changxiang Yan, and Zhi Wang. "The Influence of On-Orbit Micro-Vibration on Space Gravitational Wave Detection." Photonics 10, no. 8 (2023): 908. http://dx.doi.org/10.3390/photonics10080908.

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Large-aperture space telescopes have played an important role in space gravitational wave detection missions. Overcoming the influence of the space environment on interstellar laser distance measurement and realistic high-concentration laser distance measurement is one of the topics that LISA and Taiji are working hard on. It includes solar temperature, spatial stress relief, pointing shake and tilt, etc. However, when considering the impact of vibration on the telescope, both LISA and Taiji only consider the resonance impact of vibration on structural parts, which greatly ignores the impact o

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24

Li Cheng-Qiang, Wang Ting-Feng, Zhang He-Yong, Xie Jing-Jiang, Liu Li-Sheng, and Guo Jin. "Effect of laser linewidth on the performance of heterodyne detection." Acta Physica Sinica 65, no. 8 (2016): 084206. http://dx.doi.org/10.7498/aps.65.084206.

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25

Freudiger, Christian W., Maarten B. J. Roeffaers, Xu Zhang, Brian G. Saar, Wei Min, and X. Sunney Xie. "Optical Heterodyne-Detected Raman-Induced Kerr Effect (OHD-RIKE) Microscopy." Journal of Physical Chemistry B 115, no. 18 (2011): 5574–81. http://dx.doi.org/10.1021/jp1113834.

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26

Onodera, R., Y. Ishii, N. Ohde, Y. Takahashi, and T. Yoshino. "Effect of laser-diode power change on optical heterodyne interferometry." Journal of Lightwave Technology 13, no. 4 (1995): 675–81. http://dx.doi.org/10.1109/50.372480.

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27

Protopopov, Vladimir V., Sukwon Lee, Youngkun Kwon, Sunghoon Cho, Hyuk Kim, and Jonggyn Chae. "Scanning heterodyne Kerr-effect microscope for imaging of magnetic tracks." Review of Scientific Instruments 77, no. 7 (2006): 073104. http://dx.doi.org/10.1063/1.2220519.

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28

Yan, Zhifeng, Jingxuan Zhu, Yinglei Wang, Xinnan Lin, and Jin He. "Numerical study on heterodyne terahertz detection in field effect transistor." Optics Express 18, no. 8 (2010): 7782. http://dx.doi.org/10.1364/oe.18.007782.

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29

Yang, Shangjun, Tian Xing, Chenghu Ke, Jingyuan Liang, and Xizheng Ke. "Effect of Wavefront Distortion on the Performance of Coherent Detection Systems: Theoretical Analysis and Experimental Research." Photonics 10, no. 5 (2023): 493. http://dx.doi.org/10.3390/photonics10050493.

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Atmospheric turbulence causes signal beam wavefront distortion at the receiving end of a coherent detection system, which decreases the system mixing efficiency. Based on the coherent detection theory, this study establishes a mathematical model of wavefront distortion with mixing efficiency and mixing gain. It also analyzes the improvement limits of wavefront correction on mixing efficiency and mixing gain under different atmospheric turbulence intensities and experimentally measures them. Simulation results show that the mixing efficiency can be improved to 51%, 55%, and 60% after correcting

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30

Wang, Shinn Fwu, Chi Tun Chen, Fu Hsi Kao, et al. "Experimental Evaluation of a Small-Displacement Sensing System Based on the Surface Plasmon Resonance Technology in Heterodyne Interferometry." Applied Mechanics and Materials 479-480 (December 2013): 682–86. http://dx.doi.org/10.4028/www.scientific.net/amm.479-480.682.

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In this article, a small-displacement sensing system based on the surface plasmon resonance technology in heterodyne interferometry is proposed and evaluated. The basic sensing unit is composed of a prism assembly and a displacement probe. The prism assembly consists of a halfwave (λ/2) plate, two right-angle prisms and two rotation stages. The small-displacement sensor is with high sensitivity and resolution due to the attenuated total reflection effect in heterodyne interferometry. Besides, we can obtain the results of the experiment in a distant place by uses of the USB data acquisition car

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31

Wang, Shinn Fwu, Ming Jen Wang, and Jyh Shyan Chiu. "A Long Cylindrical Optical Fiber Sensor Based on Multiple Total Internal Reflections in Heterodyne Interferometry." Applied Mechanics and Materials 530-531 (February 2014): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amm.530-531.3.

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In this paper, a long cylindrical multimode optical fiber sensor (OFS) based on multiple total internal reflections in heterodyne interferometry is proposed. The cladding of the sensing portions of the fiber sensors is removed, but dont be coated with any metal films. With the OFS the phase shift difference due to the multiple total internal reflections (MTIRs) effect between the p-and s-polarizations can be measured by using the heterodyne interferometry. Substituting the phase shift difference into Fresnels equations, the refractive index for the tested medium can be calculated. According to

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32

Chesnokov, E. N., V. V. Kubarev, P. V. Koshlyakov, and Ya I. Gorbachev. "Effect of the phase switching of the optical FID in magnetic field." Laser Physics Letters 19, no. 5 (2022): 055201. http://dx.doi.org/10.1088/1612-202x/ac59bd.

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Abstract This work demonstrates the possibility of switching the phase of optical free induction decay (FID) in time-domain experiments. This possibility arises in experiments with paramagnetic molecules (free radicals) in a magnetic field. Changing the direction of the magnetic field alters the direction of rotation of the FID polarization plane and inverts the phase of one of the components of FID. This effect will be useful for heterodyne detection of the optical FID of the free radicals in the terahertz region.

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33

Ju, Ai Song, Yun Bo Zhang, and Wen Mei Hou. "Design and Analysis of Dual-Beam Heterodyne Interferometer." Applied Mechanics and Materials 103 (September 2011): 177–80. http://dx.doi.org/10.4028/www.scientific.net/amm.103.177.

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A dual-beam heterodyne interferometer is designed in this paper. Unlike the Zeeman-effect laser, the two frequencies are generated by two acousto-optic modulators. The different frequency beams are spatial separated, but the optical path comply the principle of common path. Nonlinearity in this system is analyzed in this paper. The periodic nonlinearity error caused by non-ideal laser source is not existed in this system. The stability of this system is tested.

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34

Grévin, Benjamin, Fatima Husainy, Dmitry Aldakov, and Cyril Aumaître. "Dual-heterodyne Kelvin probe force microscopy." Beilstein Journal of Nanotechnology 14 (November 7, 2023): 1068–84. http://dx.doi.org/10.3762/bjnano.14.88.

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We present a new open-loop implementation of Kelvin probe force microscopy (KPFM) that provides access to the Fourier spectrum of the time-periodic surface electrostatic potential generated under optical (or electrical) pumping with an atomic force microscope. The modulus and phase coefficients are probed by exploiting a double heterodyne frequency mixing effect between the mechanical oscillation of the cantilever, modulated components of the time-periodic electrostatic potential at harmonic frequencies of the pump, and an ac bias modulation signal. Each harmonic can be selectively transferred

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35

Higgins, R., S. Kabanovic, C. Pabst, et al. "Observation and calibration strategies for large-scale multi-beam velocity-resolved mapping of the [CII] emission in the Orion molecular cloud." Astronomy & Astrophysics 652 (August 2021): A77. http://dx.doi.org/10.1051/0004-6361/202039621.

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Context. The [CII] 158 μm far-infrared fine-structure line is one of the dominant cooling lines of the star-forming interstellar medium. Hence [CII] emission originates in and thus can be used to trace a range of ISM processes. Velocity-resolved large-scale mapping of [CII] in star-forming regions provides a unique perspective of the kinematics of these regions and their interactions with the exciting source of radiation. Aims. We explore the scientific applications of large-scale mapping of velocity-resolved [CII] observations. With the [CII] observations, we investigate the effect of stellar

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36

Dong Hongzhou, 董洪舟, 吴健 Wu Jian, and 郭贞贞 Guo Zhenzhen. "Study of the Effect of Aperture Transmittance Modulation on Heterodyne Detection." Acta Optica Sinica 32, no. 3 (2012): 0305002. http://dx.doi.org/10.3788/aos201232.0305002.

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37

Wu Zhou, Zhang Wen-Xi, Xiang Li-Bin, Li Yang, and Kong Xin-Xin. "Effect of frequency difference deviation on full-field heterodyne measurement accuracy." Acta Physica Sinica 67, no. 2 (2018): 020601. http://dx.doi.org/10.7498/aps.67.20171837.

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38

Tabata, Atsushi, and Masahito Yasuoka. "Heterodyne co-incidence effect of discrete connection between two elastic boards." Journal of the Acoustical Society of Japan (E) 17, no. 1 (1996): 41–43. http://dx.doi.org/10.1250/ast.17.41.

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39

Wang, Rongjun, Yangqin Chen, Peipei Cai, et al. "Optical heterodyne velocity modulation spectroscopy enhanced by a magnetic rotation effect." Chemical Physics Letters 307, no. 5-6 (1999): 339–42. http://dx.doi.org/10.1016/s0009-2614(99)00562-x.

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40

Shen, Bing, Jiajia Chen, Guanjun Xu, Qiushi Chen, and Jian Wang. "Performance Analysis of a Drone-Assisted FSO Communication System over Málaga Turbulence under AoA Fluctuations." Drones 7, no. 6 (2023): 374. http://dx.doi.org/10.3390/drones7060374.

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Future wireless communications have been envisaged to benefit from integrating drones and free space optical (FSO) communications, which would provide links with line-of-sight propagation and large communication capacity. The theoretical performance analysis for a drone-assisted downlink FSO system is investigated. Furthermore, this paper utilizes the Málaga distribution to characterize the effect of atmospheric turbulence on the optical signal for the drone–terrestrial user link, taking into account atmospheric attenuation, pointing errors, and angle-of-arrival fluctuations. The probability d

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41

LIN, L., W. QIAN, C. F. WANG, Y. H. ZOU, Q. WANG, and H. Y. CHEN. "INVESTIGATION OF THIRD-ORDER NONLINEARITY OF POLYBENZONITRILES BY HETERODYNED FEMTOSECOND OPTICAL KERR GATE." Journal of Nonlinear Optical Physics & Materials 08, no. 03 (1999): 419–29. http://dx.doi.org/10.1142/s0218863599000291.

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The femtosecond optical heterodyne detected optical Kerr effect is described in detail. The real and the imaginary parts of complex third-order optical nonlinearity can be effectively separated and their values and signs can be determined. Using this method, we thoroughly investigated the substitution effect by adding different side-groups on the –(–C=N–)– conjugated system, a new class of nonlinear optical material. We discussed the improvement in their third-order susceptibilities. And we found the value of second-order hyperpolarizability depends on the polymerization degree, but the relati

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42

Chang, Di, Xu Xing, Pengcheng Hu, Jianing Wang, and Jiubin Tan. "Double-Diffracted Spatially Separated Heterodyne Grating Interferometer and Analysis on its Alignment Tolerance." Applied Sciences 9, no. 2 (2019): 263. http://dx.doi.org/10.3390/app9020263.

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An optical configuration of double-diffracted spatially separated heterodyne grating interferometer with a mechanical fixture was designed. To further investigate its features and provide robust measurements, the alignment tolerance in double-diffracted spatially separated heterodyne grating interferometer was qualitatively and quantitatively analyzed. Except for the offset error causing no influence on the interfering signal, the effect of the other four errors, roll, yaw, pitch angles, and stand-off error were geometrically analyzed and mathematically modeled. The simulation result quantifie

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43

Deng, Yuan-long, Xue-jin Li, You-fu Geng, and Xue-ming Hong. "Effect of nonpolarizing beam splitter on measurement error in heterodyne interferometric ellipsometers." Measurement Science and Technology 23, no. 8 (2012): 085204. http://dx.doi.org/10.1088/0957-0233/23/8/085204.

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44

Akhmedzhanov, I. M., D. V. Baranov, E. M. Zolotov, and Yu I. Shupletsova. "Superresolution effect on a microstep phase image in a laser heterodyne microscope." Quantum Electronics 49, no. 7 (2019): 698–706. http://dx.doi.org/10.1070/qel16724.

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45

Lin, Chu-En, and Chih-Jen Yu. "Heterodyne Interferometry to Eliminate the Polarization Effect in a Fiber Optic Gyro." IEEE Photonics Technology Letters 26, no. 19 (2014): 1897–99. http://dx.doi.org/10.1109/lpt.2014.2339372.

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46

Nguyen, Thanh-Trung, Thanh-Tung Vu, Thanh-Dong Nguyen, and Toan-Thang Vu. "Axial Error of Spindle Measurements Using a High-Frequency-Modulated Interferometer." Crystals 11, no. 7 (2021): 801. http://dx.doi.org/10.3390/cryst11070801.

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In this paper, a novel, compact, and high-precision axial error measurement using a frequency-modulated interferometer is developed. Normally, heterodyne interferometers are a powerful system for small displacement measurements due to their property of being less sensitive to temperature and pressure variations. However, the maximum measurement speed of the heterodyne interferometer is around 5 m/s because it is usually limited by the difference in frequency between the two components of the laser beam, which is no larger than 3 MHz or 20 MHz corresponding laser source based on the Zeeman effe

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47

Yu, Tao, Ke Xue, Hongyu Long, Mingzhong Pan, Zhi Wang, and Yunqing Liu. "Development of a Micro-Radian Phasemeter and Verification Based on Single Pilot Tone for Space Gravitational Wave Detection." Symmetry 17, no. 4 (2025): 519. https://doi.org/10.3390/sym17040519.

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Space gravitational wave detection uses a three-satellite formation scheme, with the distance between satellites reaching hundreds of thousands or millions of kilometers. According to the principle of laser heterodyne interferometry, the distance change between the inter-satellite inertial references caused by the gravitational wave event is converted into the phase change of the heterodyne interference signal. The payload for measuring the phase change information is the phasemeter. The mission requires that the phasemeter’s ranging accuracy is 1 picometer, and the corresponding phase measure

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48

Gall, Roman D., Maya E. Shevchenko, and Victor N. Malyshev. "Compensation of relay satellites heterodyne instability for locating terrestrial radio emission sources." Proceedings of the Russian higher school Academy of sciences, no. 3 (October 29, 2021): 17–31. http://dx.doi.org/10.17212/1727-2769-2021-3-17-31.

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Unintentional and intentional interference of terrestrial radio sources operating via geostationary relay satellites to legal users of satellite communication systems requires accurate determination of their location. Methods of terrestrial radio sources location are based on the calculation of an cross-аambiguity function by additive mixtures of signals and noise received from relay satellites. In the presence of frequency-phase instability of relay satellites heterodynes the retransmitted signals have phase distortions, which lead to a decrease in the signal-to-noise ratio (SNR) when calcula

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Liaw, Shien-Kuei, Lina Marlina, Zi Wang, Shu-Miao Chen, Bo-Heng Lee, and Hsiou-Hsin Tsai. "23 KHz linewidth 1064 nm SOA based fiber laser by using parallel type subring cavities." Laser Physics 34, no. 6 (2024): 065101. http://dx.doi.org/10.1088/1555-6611/ad3ae8.

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Abstract:

Abstract This study presents a high-quality fiber ring laser created by integrating a semiconductor optical amplifier to generate amplified spontaneous emission with a four-subring resonator and utilizing the nonlinear polarization rotator effect. When the driven current of 400 mA, the laser exhibited a maximum power deviation of 0.204 dB and a wavelength deviation of 0.012 nm during a one-hour testing period. Furthermore, utilizing a delayed self-heterodyne measurement system, we measured the linewidth of the self-made fiber laser to be 23 kHz.

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Ke, Xizheng, and Zhenkun Tan. "Effect of angle-of-arrival fluctuation on heterodyne detection in slant atmospheric turbulence." Applied Optics 57, no. 5 (2018): 1083. http://dx.doi.org/10.1364/ao.57.001083.

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