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Proceedings Paper

High temperature resistant fiber Bragg grating lasers for sensing applications
Author(s): Bai-Ou Guan; Yang Zhang; Hong-Jun Wang; Da Chen; Hwa-Yaw Tam
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Paper Abstract

We present a high-temperature-resistant distributed Bragg reflector fiber laser photowritten in Er/Yb codoped phosphosilicate fiber that is capable of long-term operation at 500 °C. Highly saturated Bragg gratings are directly inscribed into the Er/Yb fiber without hydrogen loading by using 193 nm excimer laser. After subjected to a significant decay at elevated temperature, the stabilized gratings are strong enough for laser oscillation. The laser operates in robust single longitude mode with output power more than 1 dBm and signal-to-noise ratio better than 70 dB over the entire temperature range from room temperature to 500 °C.

Paper Details

Date Published: 5 October 2009
PDF: 4 pages
Proc. SPIE 7503, 20th International Conference on Optical Fibre Sensors, 75037H (5 October 2009); doi: 10.1117/12.834820
Show Author Affiliations
Bai-Ou Guan, Jinan Univ. (China)
Dalian Univ. of Technology (China)
Yang Zhang, Dalian Univ. of Technology (China)
Hong-Jun Wang, Dalian Univ. of Technology (China)
Da Chen, Dalian Univ. of Technology (China)
Hwa-Yaw Tam, Hong Kong Polytechnic Univ. (Hong Kong, China)

Published in SPIE Proceedings Vol. 7503:
20th International Conference on Optical Fibre Sensors
Julian D. C. Jones, Editor(s)

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