Results 21 to 30 of about 6,304,985 (297)

Laser-phase-noise-induced stochastic-resonance fluorescence

open access: yesPhysical 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

High-power, low-phase-noise, frequency-agile laser system for delivering fiber-noise-cancelled pulses for Strontium clock atom interferometry

open access: yes, 2022
We present the development of a laser system for performing single-photon atom interferometry on the 698 nm clock transition in ultracold Strontium. We coherently combine the power of two Titanium:Sapphire lasers and demonstrate chirps of 200 MHz in 2.5 ...
Yiping Wang (1484218)   +3 more
core   +1 more source

Clock noise reduction in geometric time delay interferometry combinations

open access: yesResults 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
doaj   +1 more source

Ultralow Phase Noise Microwave Generation From Mode-Locked Er-Fiber Lasers With Subfemtosecond Integrated Timing Jitter

open access: yesIEEE Photonics Journal, 2013
We demonstrate ultralow phase noise 10-GHz microwave signal generation from a free-running mode-locked Er-fiber laser with -142- and -157-dBc/Hz single-sideband absolute phase noise at 10- and 100-kHz offset frequencies, respectively.
Kwangyun Jung, Junho Shin, Jungwon Kim
doaj   +1 more source

EKF for Joint Mitigation of Phase Noise, Frequency Offset and Nonlinearity in 400 Gb/s PM-16-QAM and 200 Gb/s PM-QPSK Systems

open access: yesIEEE 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
doaj   +1 more source

Amplitude and phase noise in two-membrane cavity optomechanics

open access: yesFrontiers in Physics, 2023
Cavity optomechanics is a suitable field to explore quantum effects on macroscopic objects and develop quantum technology applications. A perfect control of the laser noise is required to operate the system in such extreme conditions necessary to reach ...
Francesco Marzioni   +12 more
doaj   +1 more source

High Precision Estimation of Laser FM-Noise Using RF Quadrature Demodulation Techniques

open access: yesIEEE Access, 2022
We report on a technique that uses RF quadrature demodulation to measure laser FM-noise based on a delayed self-heterodyne setup. The measurement is self-referencing and the FM-noise can be measured with high precision over a sufficiently long duration ...
Sean P. O'duill, Liam P. Barry
doaj   +1 more source

Parallelized Kalman Filters for Mitigation of the Excess Phase Noise of Fast Tunable Lasers in Coherent Optical Communication Systems

open access: yesIEEE 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
doaj   +1 more source

Phase noise of frequency doublers in optical clock lasers

open access: yesOptics 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
openaire   +2 more sources

Laser noise considerations for phase modulated links [PDF]

open access: yes2011 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).
Singley, Joseph M.   +2 more
openaire   +1 more source

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