Results 21 to 30 of about 20,259 (223)

A Comparative Study of Thermal Impact on Erbium Doped Distributed Feedback Fiber Laser Output Power

open access: yesIEEE Photonics Journal, 2020
The temperature dependency of erbium doped distributed feedback fiber laser output performance is experimentally and theoretically investigated with two major pump schemes.
Jian Guo   +6 more
doaj   +1 more source

Secure key distribution using an ultra-long fiber laser with bi-directional EDFA [PDF]

open access: yesEPJ Web of Conferences, 2022
In this paper we describe the implementation of a secure key distribution system based on an ultra-long fiber laser with a bi-directional erbium doped fiber amplifier.
Soares Beatriz   +2 more
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

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

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

Analysis of heat generation and thermal lensing in erbium 3-µm lasers [PDF]

open access: yes, 2003
The influence of energy-transfer upconversion (ETU) between neighboring ions in the upper and lower laser levels of erbium 3-µm continuous-wave lasers on heat generation and thermal lensing is investigated.
Pollnau, Markus
core   +2 more sources

All-fiber Mach–Zehnder comb filter based on tapered fibers for wavelength switchable erbium-doped fiber lasers

open access: yesInternational Journal of Optomechatronics, 2020
A wavelength switchable erbium-doped fiber laser was constructed based on an all-fiber Mach–Zehnder interferometer (MZI) comb filter. The MZI consisted of a fiber with two tapers.
He Wei, Zhu Lianqing, Dong Mingli
doaj   +1 more source

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

Linewidth Narrowing of a Dual Wavelength-Selectable, Ring Cavity Erbium-Doped Fiber Laser Using a Saturable Absorber

open access: yesPhotonics, 2023
The narrow linewidth fiber laser is useful in applications such as fiber sensing, optical communications, and spectroscopy. This paper presents an investigation of the model and an experiment of a stable, wavelength-selective, narrow linewidth, ring ...
Ebuka E. Okafor   +3 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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