Results 31 to 40 of about 106,389 (298)

Two-Layer Erbium-Doped Air-Core Circular Photonic Crystal Fiber Amplifier for Orbital Angular Momentum Mode Division Multiplexing System

open access: yesCrystals, 2019
Orbital angular momentum (OAM) mode-division multiplexing (MDM) has recently been under intense investigations as a new way to increase the capacity of fiber communication.
Hu Zhang   +6 more
doaj   +1 more source

High-power mid-infrared femtosecond master oscillator power amplifier Er:ZBLAN fiber laser system

open access: yesHigh Power Laser Science and Engineering, 2023
High-power femtosecond mid-infrared (MIR) lasers are of vast importance to both fundamental research and applications. We report a high-power femtosecond master oscillator power amplifier laser system consisting of a single-mode Er:ZBLAN fiber mode ...
Linpeng Yu   +11 more
doaj   +1 more source

Experimental Investigation of pump propagating direction in double-pass Er3+-doped fiber amplifiers [PDF]

open access: yes, 2005
In this paper, the impacts of pump propagating direction in double-pass Erbium-doped fiber amplifier are experimentally demonstrated. The double-pass optical amplifier architecture is constructed using a fiber loop mirror that consists of a circulator to
Al-Mansoori, Mohammed Hayder   +4 more
core   +2 more sources

Fiber optical amplifiers [PDF]

open access: yesOptical Fiber Communication, 1990
Outline:Advantages of erbium-doped fibre amplifiers (EDFA)Fabrication of rare-earth-doped fibresAmplifier fundamentalsSpectroscopy of erbiumPump requirementsAmplifier gain and saturationInterchannel crosstalkNoiseSystem ...
Payne, D.N., Laming, R.I.
openaire   +3 more sources

Kilowatt-level, narrow linewidth, polarization-maintained all-fiber amplifiers based on multi-phase coded signal modulation and laser gain competition

open access: yesResults in Physics, 2021
In this paper, multi-phase coded signal (MPCS) modulation is demonstrated on high power narrow-linewidth polarization-maintained all-fiber amplifier for the first time.
Wenchang Lai   +5 more
doaj   +1 more source

Fiber optical parametric amplifier with dispersion flattened photonics crystal fiber as a gain medium [PDF]

open access: yes, 2011
A fiber optical parametric amplifier utilizing single continuous wave pump is demonstrated. Gain medium used for parametric amplification is a 50 m long dispersion flattened photonics crystal fiber.
Al-Mansoori, Mohammed Hayder   +4 more
core   +1 more source

5 kW Near-Diffraction-Limited and 8 kW High-Brightness Monolithic Continuous Wave Fiber Lasers Directly Pumped by Laser Diodes

open access: yesIEEE Photonics Journal, 2017
Tandem pumping technique are traditionally adopted to develop >3-kW continuous-wave (cw) Yb3+-doped fiber lasers, which are usually pumped by other fiber lasers at shorter wavelengths (1018 nm e.g.,).
Qiang Fang   +7 more
doaj   +1 more source

A hybrid high-gain double-pass erbium-doped fiber amplifier with dispersion compensation feedback loop [PDF]

open access: yes, 2008
A new double-pass erbium-doped fiber amplifier (DP-EDFA) using chirped fiber Bragg grating (CFBG) is reported here showing a gain of 53.4 dB and noise figure (NF) of 5.36 dB.
Abas, Ahmad Fauzi   +5 more
core   +1 more source

Measuring Optimal Length of the Amplifying Fiber in Different Working Conditions of the Amplifier

open access: yesAdvances in Electrical and Electronic Engineering, 2014
The aim of this article is to highlight possible unwanted behaviour of an EDFA optical amplifier during temperature changes. After a brief introduction dealing with amplifiers and doped fibers in general we focus on the assembly of our own EDFA amplifier
Radek Poboril   +6 more
doaj   +1 more source

Compact pulsed thulium-doped fiber laser for topographical patterning of hydrogels

open access: yesOpto-Electronic Advances, 2020
We report the generation of high energy 2 μm picosecond pulses from a thulium-doped fiber master oscillator power amplifier system. The all-fiber configuration was realized by a flexible large-mode area photonic crystal fiber (LMA-PCF).
Lee Elizabeth   +7 more
doaj   +1 more source

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