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Indexed by:期刊论文

Date of Publication:2008-03-03

Journal:OPTICS EXPRESS

Included Journals:SCIE、EI、PubMed

Volume:16

Issue:5

Page Number:2958-2964

ISSN No.:1094-4087

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 degrees C. Highly saturated Bragg gratings are directly inscribed into the Er/Yb fiber without hydrogen loading by using a 193 nm excimer laser and phase mask method. After annealing at elevated temperature, the remained gratings are strong enough for laser oscillation. The laser operates in robust single 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 degrees C.