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Proceedings Paper

LD-pumped double-clad fiber single-frequency power amplifier
Author(s): Wen-Feng Sun; Su-Hui Yang; Chang-Ming Zhao
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Paper Abstract

Single frequency, single mode laser output from a monolithic resonator was amplified by a double-clad D-shape fiber of 4.4 meters long. When the signal laser is 200mw, up to 6.65 W single frequency laser output was obtained, slope efficiency is 30.6%. The amplifier is Yb3+ doped glass fiber pumped by a laser diode array at 976nm with signal at 1064nm. Single frequency amplification has been proved by a Fabri-Parrot interferometer. It is shown from the experiments that the signal input has not been saturated. By increasing the input signal, amplification can be increased further under the same pumping power. Experimental results meet well with theoretical calculation.

Paper Details

Date Published: 30 December 2005
PDF: 4 pages
Proc. SPIE 6028, ICO20: Lasers and Laser Technologies, 60282I (30 December 2005); doi: 10.1117/12.667352
Show Author Affiliations
Wen-Feng Sun, Beijing Institute of Technology (China)
Su-Hui Yang, Beijing Institute of Technology (China)
Chang-Ming Zhao, Beijing Institute of Technology (China)

Published in SPIE Proceedings Vol. 6028:
ICO20: Lasers and Laser Technologies
Y. C. Chen; Dianyuan Fan; Chunqing Gao; Shouhuan Zhou, Editor(s)

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