Results 11 to 20 of about 349,357 (303)
Unveiling the dynamics of optical frequency combs from phase-amplitude correlations
Physical Review Research, 2021 The noise dynamics of an optical frequency comb based on a mode-locked Ti-sapphire laser is analyzed in terms of noise modes. A spectrally resolved multipixel homodyne detection enables the simultaneous measurement of the amplitude and phase noises of ...
M. Ansquer +6 more
doaj +1 more source
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
doaj +1 more source
Laser noise considerations for phase modulated links [PDF]
2011 IEEE Avionics, Fiber- Optics and Photonics Technology Conference, 2011 Photonic links employing intensity modulation with direct detection are typically unaffected by laser phase noise without a mechanism to convert that phase noise into intensity noise. Such mechanisms in long links include chromatic dispersion and double-Rayleigh scattering, the latter of which introduces multi-path interference (MPI).
Joseph M. Singley +2 more
openaire +1 more source
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
doaj +1 more source
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
doaj +1 more source
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
openaire +2 more sources
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
doaj +1 more source
Optomechanical entanglement in the presence of laser phase noise [PDF]
Physical Review A, 2011 We study the simplest optomechanical system in the presence of laser phase noise using the covariance matrix formalism. We show that the destructive effect of the phase noise is especially strong in the bistable regime. This explains why ground state cooling is still possible in the presence of phase noise, as it happens far away from the bistable ...
Ghobadi, R. +2 more
openaire +2 more sources
A reduction of interferometric phase-to-intensity conversion noise in fiber links by large index phase modulation of the optical beam [PDF]
, 1992 A noise reduction scheme for long haul fiber amplitude modulation (AM) systems is proposed and analyzed. Such systems suffer from intensity noise which results from interference between the (twice) Rayleigh scattered light and the directly transmitted ...
Blauvelt, Hank, Wu, Shu-Wu, Yariv, Amnon
core +1 more source
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
doaj +1 more source