Results 31 to 40 of about 106,274 (293)

Wideband and flat gain series erbium doped fiber amplifier using hybrid active fiber with backward pumping distribution technique

Results in Physics, 2019
A modern wideband and flat gain erbium-doped fiber amplifier (EDFA) is suggested and accomplished, by employing a recently fabricated hafnia-bismuth-erbium doped fiber (HB-EDF) and zirconia-erbium doped fiber (Zr-EDF) as a hybrid active fiber.
Alabbas A. Al-Azzawi, Aya A. Almukhtar, B.A. Hamida, S. Das, A. Dhar, M.C. Paul, H. Ahmad, S.W. Harun   +7 more
doaj   +1 more source

A Unified Approach to Achieving High Power and High Energy in Chirally Coupled-Core Ytterbium-Doped Fiber Amplifier Systems

IEEE Photonics Journal, 2018
An approach based on a comprehensive, unified model for fiber laser and amplifier systems is used in the design of high-power, high-energy systems. With guidance from the model, a chirally coupled-core Yb-doped fiber amplifier system is constructed.
Jinxu Bai, Jim Zhang, Joona Koponen, Manoj Kanskar, Elias Towe   +4 more
doaj   +1 more source

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

Crystals, 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, Di Han, Lixia Xi, Zhuo Zhang, Xiaoguang Zhang, Hui Li, Wenbo Zhang   +6 more
doaj   +1 more source

Fiber optical amplifiers [PDF]

Optical 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

Results 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, Pengfei Ma, Jiaxin Song, Shuai Ren, Wei Liu, Pu Zhou   +5 more
doaj   +1 more source

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

, 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, Khairi, K. A., Mahamd Adikan, Faisal Rafiq, Mahdi, Mohd Adzir, Naji, Ahmed Wathik   +4 more
core   +2 more sources

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

IEEE 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, Jinhui Li, Wei Shi, Yuguo Qin, Yang Xu, Xiangjie Meng, Robert A. Norwood, Nasser Peyghambarian   +7 more
doaj   +1 more source

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

, 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, Abdullah, Fairuz, Abdullah, Mohamad Khazani, Jamaludin, Md Zaini, Mahdi, Mohd Adzir, Rahman, Faidz   +5 more
core   +1 more source

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

, 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, Cholan, Noran Azizan, Ismail, Alyani, Mahdi, Mohd Adzir, Muhammad Noor, Ahmad Shukri   +4 more
core   +1 more source

Quantum cloning with an optical fiber amplifier [PDF]

, 2002
It has been shown theoretically that a light amplifier working on the physical principle of stimulated emission should achieve optimal quantum cloning of the polarization state of light.
Grégoire Ribordy, Hugo Zbinden, K. Shimoda, Nicolas Gisin, P. W. Milonni, Sylvain Fasel, Valerio Scarani, W. E. Lamb, W. K. Wootters   +8 more
core   +3 more sources