Results 11 to 20 of about 119,729 (285)

Internal modulation of a random fiber laser [PDF]

open access: yesOptics Letters, 2013
A characterization of a modulated random mirror laser has been experimentally carried out. Unlike conventional internally modulated fiber lasers, no distortion of the modulating frequency or self-mode-locking effects were measured. The behavior of the laser using pulsed and analog modulation up to 12 GHz is shown.
Bravo Acha, Mikel   +2 more
openaire   +6 more sources

Random fiber Bragg grating Raman fiber laser

open access: yesOptics Letters, 2014
We demonstrate for the first time to our knowledge a Raman random fiber laser (RRFL) based on a long random fiber Bragg grating (RFBG-RRFL). Unlike other recently demonstrated random fiber lasers that rely on incoherent Rayleigh scattering feedback, the present scheme uses randomly distributed phase shifts inside a fiber-meter long Bragg grating as a ...
Mathieu, Gagné, Raman, Kashyap
exaly   +10 more sources

High Efficient Random Laser with Cavity Based on the Erbium-Doped Germanophosphosilicate Artificial Rayleigh Fiber

open access: yesPhotonics, 2023
The Erbium “random” laser, based on the artificial Rayleigh fiber, has been comparatively studied in detail under two different pump conditions: 974.5 and 1485 nm pumping wavelengths.
Sergei Popov   +11 more
doaj   +1 more source

Spectrum-tailored random fiber laser towards ICF laser facility

open access: yesMatter and Radiation at Extremes, 2023
Broadband low-coherence light is considered to be an effective way to suppress laser plasma instability. Recent studies have demonstrated the ability of low-coherence laser facilities to reduce back-scattering during beam–target coupling.
Mengqiu Fan   +16 more
doaj   +1 more source

Advances in Random Fiber Lasers and Their Sensing Application

open access: yesSensors, 2020
Compared with conventional laser, random laser (RL) has no resonant cavity, reducing the requirement of cavity design. In recent years, the random fiber laser (RFL), a novel kind of RL, has made great progress in theories and experiments.
Hong Chen   +9 more
doaj   +1 more source

Generation of Narrow Modes in Random Raman Fiber Laser Based on Multimode Fiber

open access: yesPhotonics, 2023
We present a new design of a random Raman fiber laser based on a graded-index multimode fiber as the media composing the cavity that allows the generation of narrow spectral lines.
Ilya D. Vatnik   +2 more
doaj   +1 more source

A random Q-switched fiber laser [PDF]

open access: yesScientific Reports, 2015
AbstractExtensive studies have been performed on random lasers in which multiple-scattering feedback is used to generate coherent emission. Q-switching and mode-locking are well-known routes for achieving high peak power output in conventional lasers.
Yulong Tang, Jianqiu Xu
openaire   +2 more sources

Comparative Study of Ultra-Narrow-Mode Generation in Random Fiber Lasers Based on Different Fiber Types

open access: yesPhotonics, 2023
We studied the properties of ultra-narrow spectral modes, appearing in random distributed feedback Raman fiber lasers, for different fibers building up a laser cavity.
Ilya D. Vatnik   +2 more
doaj   +1 more source

Wavelength-switchable L-band fiber laser assisted by ultrafast laser fabricated random reflectors [PDF]

open access: yesEPJ Web of Conferences, 2022
A wavelength-switchable L-band erbium-doped fiber laser (EDFL) assisted by an artificially controlled backscattering (ACB) fiber reflector is here presented.
Perez-Herrera Rosa Ana   +5 more
doaj   +1 more source

Efficient 1054 nm Raman Random Fiber Laser

open access: yesPhotonics, 2023
Low–coherence laser is regarded as the key to mitigating laser–plasma instability (LPI) in laser–driven inertial confinement fusion (ICF), where LPI can decrease the laser energy coupled to the target.
Pan Wang   +6 more
doaj   +1 more source

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