Results 71 to 80 of about 2,137,350 (160)

Intrinsic multichannel power control in cascaded power-equalizing erbium-doped fiber amplifiers [PDF]

, 2000
We numerically investigate the performance of a cascade of four-channel power-equalizing reflective erbium-doped fiber amplifiers (EDFAs). The EDFAs reflect different channels at different points so that different channels interact with partly different ...
Nilsson, J.
core   +1 more source

Electro-optically Q-switched Er:YAG laser in-band pumped by an Er,Yb fiber laser

, 2006
Electro-optically Q-switched operation of an Er:YAG laser at 1645nm end-pumped by a cladding-pumped Er-Yb fiber laser is reported.
Clarkson, W.A., Shen, D.Y., Sahu, Jayanta   +2 more
core   +2 more sources

Multi-element fiber for space-division multiplexing

, 2013
A novel approach of using multi-element fiber (MEF) technology in space-division multiplexing (SDM) systems is presented. This paper reviews the progress in fabrication and characterization of MEF based both ultra-low crosstalk transmission and amplifier
V. J. F. Rancaño, May-Smith, T.C., Petropoulos, P., Jain, S., Richardson, D.J., T. C. May-Smith, S. Jain, J. K. Sahu, D. J. Richardson, P. Petropoulos, Sahu, J.K., Rancaño, V.J.F., A. Webb, Webb, A.   +13 more
core   +1 more source

A Single-Mode Erbium Fiber Laser With Flat Power Output and Wide Wavelength Tunability

IEEE Photonics Journal, 2020
In this research, we present and study an erbium fiber laser with triple-fiber-ring (TFR) scheme for continuous-wave (CW) wavelength-selection. The designed TFR not only can achieve single-longitudinal-mode (SLM) oscillation, but also can spread the ...
Chien-Hung Yeh, Wei-Yao You, Jhao-Ren Chen, Wen-Piao Lin, Chi-Wai Chow, Jing-Heng Chen   +5 more
doaj   +1 more source

Investigation of Intra-Cavity SPR Sensor Based on Erbium-Doped Fiber Laser

IEEE Photonics Journal
In this paper, an intra-cavity SPR sensor based on erbium-doped fiber (EDF) laser is proposed to achieve higher sensitivity for detecting analyte refractive indices. A liquid-core fiber-based SPR sensor is first designed to match the operating wavelength
Ge Meng, Nannan Luan, Hao He, Fan Lei, Jianfei Liu   +4 more
doaj   +1 more source

A new design approach for fibre DFB lasers with improved efficiency [PDF]

, 2004
The standard DFB laser optimisation method is critically investigated and a new design approach based on the effective cavity length is presented. By applying this method in a Erbium-Ytterbium co-doped fibre, pump-to-signal conversion ratio is increased ...
Hickey, L.M.B., Kuthan Yelen, Louise M. B. Hickey, Mikhail N. Zervas, Yelen, K., Zervas, M.N.   +5 more
core   +1 more source

High-power cladding-pumped Raman and erbium-ytterbium doped fibre sources

, 2007
Raman fibres and rare-earth doped silica fibres have been investigated for many years as gain media for the amplification of optical signals in telecommunications thanks to their broad gain bandwidth. They are now widely used for that application.
Codemard, Christophe André
core   +1 more source

Investigation of Axial Strain Effects on Microwave Signals from a PM-EDF Short Cavity DBR Laser for Sensing Applications

IEEE Photonics Journal, 2012
The effects of axial strain on beating frequency from a short cavity polarization-maintaining erbium-doped fiber (PM-EDF) based distributed Bragg reflector (DBR) laser were investigated theoretically and experimentally for the first time.
M. Jiang, X. Q. Dinh, P. P. Shum, S. Molin, Z. F. Wu, P. Nouchi   +5 more
doaj   +1 more source

1.2dB/cm gain in an erbium:lutecium co-doped Al/P silica fibre

, 1998
We report a peak gain of 1.2dB/cm at 1535nm in an Erbium:Lutecium codoped Al/P/Si fibre fabricated using a standard MCVD and solution doping technique. This is the highest gain per unit length yet reported in an erbium doped fiber amplifier.
Caplen, J.E., Dong, L., de Sandro, J.P., Samson, B.N.   +3 more
core   +1 more source

230 mW of blue light from a thulium-doped upconversion fiber laser [PDF]

, 1997
We demonstrate a powerful diode-pumped blue laser source, consisting of a 7W diode at 807nm that pumps a Nd:YAG laser giving 1.6W with good beam quality at 1123nm, and a thulium-doped upconversion fiber laser.
Tropper, A.C., Hanna, D.C., Moore, N., Clarkson, W.A., Maze, G., Paschotta, R.   +5 more
core   +1 more source