Results 21 to 30 of about 25,004 (226)

Single Longitudinal Mode Lasers by Using Artificially Controlled Backscattering Erbium Doped Fibers

open access: yesIEEE Access, 2021
In this work, we propose and experimentally demonstrate a new distributed short linear cavity fiber laser. At one of the cavity ends, fabricated by a commercial femtosecond fiber laser chirped pulse amplifier, an artificially controlled backscattering ...
Rosa Ana Perez-Herrera   +4 more
doaj   +1 more source

Reduction of the intensity noise from an erbium-doped fiber laser to the standard quantum limit by intracavity spectral filtering [PDF]

open access: yes, 1992
The high frequency intensity noise of a tandem fiber Fabry–Perot erbium-doped fiber ring laser is reduced to the standard quantum limit, with a 0.5 dB experimental uncertainty.
Dawson, Jay W.   +3 more
core   +1 more source

Passively Q-Switched 11-Channel Stable Brillouin Erbium-Doped Fiber Laser With Graphene as the Saturable Absorber

open access: yesIEEE Photonics Journal, 2012
A passively Q-switch Brillouin erbium-doped fiber laser (BEDFL) with 11 stable lasing wavelengths at peak power of -15 dBm between 1550.1 nm to 1551.0 nm, 1.67- μs pulsewidth, and repetition rate of 152.40 kHz is demonstrated.
H. Ahmad   +6 more
doaj   +1 more source

Erbium-doped nanoparticles in silica-based optical fibres [PDF]

open access: yes, 2012
Developing of new rare-earth (RE)-doped optical fibres for power amplifiers and lasers requires continuous improvements in the fibre spectroscopic properties (like shape and width of the gain curve, optical quantum efficiency, resistance to spectral hole
Blanc, Wilfried   +2 more
core   +3 more sources

Intra-cavity spectroscopy using amplified spontaneous emission in fiber lasers [PDF]

open access: yes, 2011
Fiber laser sources offer interesting possibilities for gas sensors since they can operate over an extended wavelength range, encompassing the near-IR absorption lines of a number of important gases but a major problem is that overtone absorption lines ...
Arsad, Norhana   +3 more
core   +1 more source

Active Optical Fibers Doped with Ceramic Nanocrystals

open access: yesAdvances in Electrical and Electronic Engineering, 2014
Erbium-doped active optical fiber was successfully prepared by incorporation of ceramic nanocrystals inside a core of optical fiber. Modified chemical vapor deposition was combined with solution-doping approach to preparing preform.
Jan Mrazek   +8 more
doaj   +1 more source

Two Stage Three Pass EDFA Design and EDFA Parameters’ Optimization

open access: yesGazi Üniversitesi Fen Bilimleri Dergisi, 2020
In this study, two stage and triple pass erbium doped fiber amplifier (EDFA) is designed and EDFA’s input signal wavelengths and powers, erbium doped fiber (EDF) lengths, and pump laser powers are optimized.
Murat YÜCEL, Emrah Yiğit
doaj   +1 more source

Experimental demonstration of 25 GHz wideband chaos in symmetric dual port EDFRL [PDF]

open access: yes, 2017
We study dynamics of chaos in dual port erbium-doped fiber ring laser (EDFRL). The laser consists of two erbium-doped fibers, intracavity filters at 1549.30 nm, isolators, and couplers.
Jain, Ankita   +4 more
core   +1 more source

Novel reactive molten core fabrication employing in-situ metal oxidation: Erbium-doped intrinsically low Brillouin scattering optical fiber

open access: yesOptical Materials: X, 2019
Reported here is an erbium-doped, few-mode, intrinsically low Brillouin gain optical fiber fabricated using a novel reactive molten core (rMC) process involving in-situ metal oxidation.
M. Tuggle   +7 more
doaj   +1 more source

Erbium-doped and Raman microlasers on a silicon chip fabricated by the sol–gel process [PDF]

open access: yes, 2005
We report high-Q sol–gel microresonators on silicon chips, fabricated directly from a sol–gel layer deposited onto a silicon substrate. Quality factors as high as 2.5×10^7 at 1561 nm were obtained in toroidal microcavities formed of silica sol–gel ...
Carmon, Tal   +4 more
core   +1 more source

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