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Proceedings Paper

Pump-induced lasing wavelength uncertainty in Er/Yb co-doped fiber-grating lasers
Author(s): Yuan-Zhong Xu; Hwa-Yaw Tam; Shuihua Liu; M. Suleyman Demokan
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Paper Abstract

Strong pump absorption in Er/Yb codoped fiber grating lasers was found to cause large optical frequency fluctuation besides lasing wavelength shift. The temperature rise due to the pump induced heating within the Er/Yb fiber cavity was theoretically investigated, which caused the lasing wavelength shift with the increase of 980 nm pump power. An experimental setup was also built to estimate the optical frequency fluctuation under a fixed pump power. The observed 1.7 GHz optical frequency fluctuation was reduced to less than 90 MHz through proper thermal dissipation.

Paper Details

Date Published: 26 November 1999
PDF: 6 pages
Proc. SPIE 3847, Optical Devices for Fiber Communication, (26 November 1999); doi: 10.1117/12.371256
Show Author Affiliations
Yuan-Zhong Xu, Wuhan Research Institute of Posts & Telecommmunications (China)
Hwa-Yaw Tam, Hong Kong Polytechnic Univ. (China)
Shuihua Liu, Wuhan Research Institute of Posts & Telecommunications (China)
M. Suleyman Demokan, Hong Kong Polytechnic Univ. (Hong Kong)

Published in SPIE Proceedings Vol. 3847:
Optical Devices for Fiber Communication
Michel J. F. Digonnet, Editor(s)

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