Results 21 to 30 of about 108,935 (277)

Optical rogue wave in random distributed feedback fiber laser [PDF]

open access: yes, 2018
The famous demonstration of optical rogue wave (RW)-rarely and unexpectedly event with extremely high intensity-had opened a flourishing time for temporal statistic investigation as a powerful tool to reveal the fundamental physics in different laser scenarios. However, up to now, optical RW behavior with temporally localized structure has yet not been
Xu, Jiangming   +6 more
openaire   +3 more sources

Extreme Narrowing of the Distributed Feedback Fiber Laser Linewidth Due to the Rayleigh Backscattering in a Single-Mode Fiber: Model and Experimental Test

open access: yesPhotonics, 2022
We present our theoretical model and experimental results on the extreme linewidth narrowing of an erbium-doped fiber distributed feedback (DFB) laser due to an additional random DFB via Rayleigh backscattering in a long single-mode fiber connected to ...
Mikhail I. Skvortsov   +8 more
doaj   +1 more source

Tunable Random Fiber Laser Based on Dual-Grating Structure

open access: yesPhotonics, 2023
In order to reduce the pumping threshold and achieve a short-cavity single-mode transmission with a narrow-linewidth random fiber laser, we propose a tunable random fiber laser based on the combination of random grating and highly reflective fiber Bragg ...
Yanan Niu   +6 more
doaj   +1 more source

Direct measurements of localized spectral modes in random distributed feedback fiber laser

open access: yesResults in Physics, 2021
We present observation of ultra-narrow spectral modes in the generation of the random fiber laser by using a technique of optical heterodyning in real-time. We found that such modes have a spectral width below 3 MHz. The modes are spatially extended over
Artem E. Kirik   +2 more
doaj   +1 more source

Triple-Wavelength Thulium-Doped Fiber Random Laser Based on Random Fiber Grating

open access: yesPhotonics, 2023
We demonstrate a triple-wavelength thulium-doped fiber random laser using a 10 cm long random fiber grating to provide random distributed feedback and a superimposed fiber Bragg grating as the wavelength-selective mirror.
Lewen Zhou   +5 more
doaj   +1 more source

A Random Search Framework for Convergence Analysis of Distributed Beamforming With Feedback [PDF]

open access: yesIEEE Transactions on Information Theory, 2010
The focus of this work is on the analysis of transmit beamforming schemes with a low-rate feedback link in wireless sensor/relay networks, where nodes in the network need to implement beamforming in a distributed manner. Specifically, the problem of distributed phase alignment is considered, where neither the transmitters nor the receiver has perfect ...
Che Lin   +2 more
openaire   +2 more sources

Switchable Wide-Band Multi-Wavelength Brillouin-Erbium Fiber Laser Based on Random Distributed Feedback

open access: yesIEEE Access, 2020
A wavelength-interval switchable wide-band multi-wavelength Brillouin-erbium fiber laser with a half-open cavity is proposed and experimentally demonstrated, which is constructed by random distributed feedback (RDFB) mirrors provided by Rayleigh ...
Fei Wang, Yifan Gong
doaj   +1 more source

1.7 μm self-synchronized picosecond pulsed random Raman fiber laser

open access: yesShenzhen Daxue xuebao. Ligong ban, 2022
Aiming at the structural complexity of the current 1.7 μm band short pulse lasers, we propose and implement a self-synchronized picosecond pulsed random Raman fiber laser.
ZHU Yihuai   +10 more
doaj   +1 more source

Reflectivity variation in asymmetric random distributed feedback Raman fiber laser [PDF]

open access: yes, 2015
This paper demonstrates and discusses the effect of reflectivity on the intracavity power development and spectral profile of a 41.1 km asymmetric (half-opened cavity) random distributed feedback fiber laser with different pumping schemes.
Abu Bakar, M.H.   +4 more
core   +4 more sources

An Ytterbium-Doped Narrow-Bandwidth Randomly Distributed Feedback Laser Emitting at a Wavelength of 976 nm

open access: yesPhotonics, 2023
All-fiber, polarization maintaining, narrow-bandwidth, Yb-doped fiber lasers with randomly distributed feedback operated near 976 nm were realized for the first time.
Danila A. Davydov   +9 more
doaj   +1 more source

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