The Experts below are selected from a list of 312 Experts worldwide ranked by ideXlab platform
John E. Bowers - One of the best experts on this subject based on the ideXlab platform.
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linear coherent receiver based on a broadband and sampling optical phase locked loop
International Topical Meeting on Microwave Photonics, 2007Co-Authors: John E. Bowers, Darko Zibar, Anand Ramaswamy, L A Johansson, Jonathan Klamkin, M N Sysak, L A Coldren, M J W Rodwell, L Lembo, R YoshimitsuAbstract:A novel coherent receiver for linear optical phase demodulation is proposed and experimentally demonstrated. The receiver, based on a broadband optical phase-lock loop has a bandwidth of 1.45 GHz. Using the receiver in an analog link experiment, a spurious free dynamic range of 125 dBHz2/3 is measured at 300 MHz. Further, theoretical investigations are presented demonstrating receiver operation at high frequencies (>2 GHz) using a sampling phase-locked loop.
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Novel Optical phase Demodulator Based on a Sampling phase-locked loop
IEEE Photonics Technology Letters, 2007Co-Authors: Darko Zibar, Leif A. Johansson, Hsu-feng Chou, Anand Ramaswamy, Mark J. W. Rodwell, John E. BowersAbstract:A novel phase-locked coherent demodulator, based on a sampling phase-locked loop, is presented and investigated theoretically. The demodulator is capable of operating at high frequencies, by using optical sampling to downconvert the high-frequency input radio-frequency signal to the frequency range of the baseband loop. We develop a detailed theoretical model of the (sampling) phase-locked coherent demodulator and perform detailed numerical simulations. The simulation results show that the operation of the sampling demodulator resembles the operation of the baseband demodulator for very short optical pulses (
Darko Zibar - One of the best experts on this subject based on the ideXlab platform.
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linear coherent receiver based on a broadband and sampling optical phase locked loop
International Topical Meeting on Microwave Photonics, 2007Co-Authors: John E. Bowers, Darko Zibar, Anand Ramaswamy, L A Johansson, Jonathan Klamkin, M N Sysak, L A Coldren, M J W Rodwell, L Lembo, R YoshimitsuAbstract:A novel coherent receiver for linear optical phase demodulation is proposed and experimentally demonstrated. The receiver, based on a broadband optical phase-lock loop has a bandwidth of 1.45 GHz. Using the receiver in an analog link experiment, a spurious free dynamic range of 125 dBHz2/3 is measured at 300 MHz. Further, theoretical investigations are presented demonstrating receiver operation at high frequencies (>2 GHz) using a sampling phase-locked loop.
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Novel Optical phase Demodulator Based on a Sampling phase-locked loop
IEEE Photonics Technology Letters, 2007Co-Authors: Darko Zibar, Leif A. Johansson, Hsu-feng Chou, Anand Ramaswamy, Mark J. W. Rodwell, John E. BowersAbstract:A novel phase-locked coherent demodulator, based on a sampling phase-locked loop, is presented and investigated theoretically. The demodulator is capable of operating at high frequencies, by using optical sampling to downconvert the high-frequency input radio-frequency signal to the frequency range of the baseband loop. We develop a detailed theoretical model of the (sampling) phase-locked coherent demodulator and perform detailed numerical simulations. The simulation results show that the operation of the sampling demodulator resembles the operation of the baseband demodulator for very short optical pulses (
N V Kuznetsov - One of the best experts on this subject based on the ideXlab platform.
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hidden attractors in dynamical models of phase locked loop circuits limitations of simulation in matlab and spice
Communications in Nonlinear Science and Numerical Simulation, 2017Co-Authors: N V Kuznetsov, G A Leonov, M V Yuldashev, R V YuldashevAbstract:Abstract During recent years it has been shown that hidden oscillations, whose basin of attraction does not overlap with small neighborhoods of equilibria, may significantly complicate simulation of dynamical models, lead to unreliable results and wrong conclusions, and cause serious damage in drilling systems, aircrafts control systems, electromechanical systems, and other applications. This article provides a survey of various phase-locked loop based circuits (used in satellite navigation systems, optical, and digital communication), where such difficulties take place in MATLAB and SPICE. Considered examples can be used for testing other phase-locked loop based circuits and simulation tools, and motivate the development and application of rigorous analytical methods for the global analysis of phase-locked loop based circuits.
Anand Ramaswamy - One of the best experts on this subject based on the ideXlab platform.
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linear coherent receiver based on a broadband and sampling optical phase locked loop
International Topical Meeting on Microwave Photonics, 2007Co-Authors: John E. Bowers, Darko Zibar, Anand Ramaswamy, L A Johansson, Jonathan Klamkin, M N Sysak, L A Coldren, M J W Rodwell, L Lembo, R YoshimitsuAbstract:A novel coherent receiver for linear optical phase demodulation is proposed and experimentally demonstrated. The receiver, based on a broadband optical phase-lock loop has a bandwidth of 1.45 GHz. Using the receiver in an analog link experiment, a spurious free dynamic range of 125 dBHz2/3 is measured at 300 MHz. Further, theoretical investigations are presented demonstrating receiver operation at high frequencies (>2 GHz) using a sampling phase-locked loop.
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Novel Optical phase Demodulator Based on a Sampling phase-locked loop
IEEE Photonics Technology Letters, 2007Co-Authors: Darko Zibar, Leif A. Johansson, Hsu-feng Chou, Anand Ramaswamy, Mark J. W. Rodwell, John E. BowersAbstract:A novel phase-locked coherent demodulator, based on a sampling phase-locked loop, is presented and investigated theoretically. The demodulator is capable of operating at high frequencies, by using optical sampling to downconvert the high-frequency input radio-frequency signal to the frequency range of the baseband loop. We develop a detailed theoretical model of the (sampling) phase-locked coherent demodulator and perform detailed numerical simulations. The simulation results show that the operation of the sampling demodulator resembles the operation of the baseband demodulator for very short optical pulses (
Leif A. Johansson - One of the best experts on this subject based on the ideXlab platform.
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A heterodyne optical phase-locked loop for multiple applications
Optical Fiber Communication Conference National Fiber Optic Engineers Conference 2013, 2013Co-Authors: Hyun-chul Park, Leif A. Johansson, Mark J. W. Rodwell, John S. L. Parker, Eli Bloch, Abirami Sivananthan, Z. Griffith, L A ColdrenAbstract:A novel heterodyne optical phase-locked loop (OPLL) has been achieved and testing results are demonstrated with a 0.03 rad2 phase error variance. Based on the superior performance of this OPLL, a system prototype is shown for multiple applications, including free-space LIDAR systems, widely-and-fast-tunable ultra-narrow-linewidth lasers, and ultra-accurate optical spectrum analyzers.
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Novel Optical phase Demodulator Based on a Sampling phase-locked loop
IEEE Photonics Technology Letters, 2007Co-Authors: Darko Zibar, Leif A. Johansson, Hsu-feng Chou, Anand Ramaswamy, Mark J. W. Rodwell, John E. BowersAbstract:A novel phase-locked coherent demodulator, based on a sampling phase-locked loop, is presented and investigated theoretically. The demodulator is capable of operating at high frequencies, by using optical sampling to downconvert the high-frequency input radio-frequency signal to the frequency range of the baseband loop. We develop a detailed theoretical model of the (sampling) phase-locked coherent demodulator and perform detailed numerical simulations. The simulation results show that the operation of the sampling demodulator resembles the operation of the baseband demodulator for very short optical pulses (
