Results 21 to 30 of about 80,084 (309)
Multi-Level Phase Noise Model for CO-OFDM Spatial-Division Multiplexed Transmission
Photonics, 2022 Spatial division multiplexed (SDM) transmission systems with coherence communication technology have become an important issue in meeting the demands for the capacity of fiber.
Guozhou Jiang, Liu Yang
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Phase Noise Influence in a Dual-Frequency Laser Phase-Shift Range Finder
IEEE Photonics Journal, 2018 The influence of phase noise in a dual-frequency laser phase-shift range finder is theoretically and experimentally investigated. The proposed range finder is based on the use of a coherent dual-frequency laser and direct detection of the backscattered ...
Hongzhi Yang +4 more
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Distributed Vibration Sensor With Laser Phase-Noise Immunity by Phase-Extraction φ-OTDR
Photonic Sensors, 2019 We have demonstrated a distributed vibration sensor based on phase-sensitive optical time-domain reflectometer (φ-OTDR) system exhibiting immunity to the laser phase noise. Two laser sources with different linewidth and phase noise levels are used in the
Yuying Shao +7 more
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Phase-Shift Laser Ranging Technology Based on Multi-Frequency Carrier Phase Modulation
Photonics, 2022 Compared to traditional phase laser ranging technology, phase-shift laser ranging technology based on carrier phase modulation has significant advantages, such as simple modulation and demodulation, as well as simultaneous ranging and velocity ...
Lisha Zhou +3 more
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Phase noise of four-wave mixing in semiconductor lasers [PDF]
Applied Physics Letters, 1992 A simple theoretical analysis shows that the linewidth of the conjugate wave produced in four-wave mixing in semiconductor lasers is equal to the linewidth of the probe plus four times the linewidth of the pump. Experimental results in good agreement with the theory are presented.
HUI R., MECOZZI, ANTONIO
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IEEE Photonics Journal, 2017 Laser phase noise tolerance in direct detection optical orthogonal frequency division multiplexing (OFDM) transmission system is experimentally demonstrated using laser linewidth emulator.
Y. N. Ali, Z. Zan
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Fourier and Inverse Fourier Transform Model for Delayed Self-interferometry System
IEEE Photonics Journal, 2020 Understanding the effects of laser phase and frequency noise on laser interferometry is significant for evaluating the system performance. To precisely study the performance limit caused by laser frequency noise, here we propose and demonstrate a ...
Ling Zhang +8 more
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Clock noise reduction in geometric time delay interferometry combinations
Results in Physics, 2023 Time-delay interferometry (TDI) is a critical data post-processing technique in space-borne laser interferometer gravitational wave detection, which is developed to suppress the overwhelming laser phase noise below the instrumental noise floor by time ...
Zi-Jiang Yang +3 more
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From ultra-noisy to ultra-stable: Optimization of the optoelectronic laser lock [PDF]
APL PhotonicsWe demonstrate the direct locking of a 820 kHz linewidth semiconductor distributed feedback laser to a high finesse, compact, and ultrastable reference cavity using the optoelectronic (OEO) laser locking method, resulting in cavity thermal noise-limited ...
Takuma Nakamura +7 more
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Laser-phase-noise-induced stochastic-resonance fluorescence
Physical Review A, 1990 Abstract Stochastic fluctuations of coherent and incoherent components of the resonance fluorescence intensity induced by Wiener-Levy laser phase noise are investigated. Statistical properties of the atomic dipole moment and stochastic Mollow spectra of atomic dipole fluctuations for different values of the laser linewidth and Rabi ...
, Rangwala, , Wódkiewicz, , Su
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