Results 31 to 40 of about 349,357 (303)
IEEE Photonics Journal, 2017 The performance of higher order modulation formats such as 16-quadrature amplitude modulation (QAM) coherent optical communication systems are limited due to several linear and nonlinear impairments such as phase noise, frequency offset, chromatic ...
Ankita Jain +3 more
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IEEE Photonics Journal, 2018 Numerical and experimental investigations are carried out on the performance of parallelized Kalman filters applied for mitigation of the excess phase noise of fast tunable lasers.
Fan Liu +3 more
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Electronic phase-noise suppression in diode lasers
Electronics Letters, 1981 It is shown that active current feedback reduces phase noise in diode lasers by between a factor of 1000 and 30 in the 0–250 Hz region.
A. Dandridge, A.B. Tveten
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The relative intensity noise of a vertical-cavity surface-emitting laser with a fiber Bragg grating external cavity [PDF]
Научно-технический вестник информационных технологий, механики и оптики, 2021 The research deals with the topical problem of stabilizing the optical parameters of a single-mode vertical-cavity surfaceemitting laser. A solution to the problem is proposed by forming an external cavity based on a Bragg grating induced into an optical
Vladimir A. Shulepov +2 more
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Weak-Light Phase-Locking Time Delay Interferometry with Optical Frequency Combs
Sensors, 2022 In the future space-borne gravitational wave (GW) detector, the optical transponder scheme, i.e., the phase-locking scheme, will be utilized so as to maintain the signal-to-noise ratio (SNR).
Mingyang Xu +6 more
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Laser phase noise to intensity noise conversion by lowest-order group-velocity dispersion in optical fiber: exact theory [PDF]
, 2000 An exact result for the spectral density of intensity variations that occur after propagation of ergodic light in a medium having lowest-order-only group-velocity dispersion is obtained and applied to the problem of semiconductor laser phase noise to ...
Crosignani, B. +2 more
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Phase noise of frequency doublers in optical clock lasers
Optics Express, 2019 Frequency doublers are widely used in high-resolution spectroscopy to shift the operation wavelength of a laser to a more easily accessible or otherwise preferable spectral region. We investigate the use of a periodically-poled lithium niobate (PPLN) waveguide frequency doubler in an optical clock.
Sofia, Herbers +3 more
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Experimental Demonstration of Time-Delay Interferometry for the Laser Interferometer Space Antenna
, 2010 We report on the first demonstration of time-delay interferometry (TDI) for LISA, the Laser Interferometer Space Antenna. TDI was implemented in a laboratory experiment designed to mimic the noise couplings that will occur in LISA.
Brent Ware +8 more
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Remote SensingLaser phase noise is a critical factor that limits the range and performance of coherent lidar systems, especially in high-resolution applications such as inverse synthetic aperture lidar (ISAL), which demands stringent coherence.
Dengfeng Liu +7 more
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Photonics, 2016 Using coherent optical detection and digital signal processing, laser phase noise and equalization enhanced phase noise can be effectively mitigated using the feed-forward and feed-back carrier phase recovery approaches.
Tianhua Xu +6 more
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