Distributed Bragg reflector fiber lasers for high temperature sensor applications

Bai Ou Guan, Yang Zhang, Hong Jun Wang, Da Chen, Hwa Yaw Tam

Research output: Journal article publicationConference articleAcademic researchpeer-review


We present a high-temperature-resistant distributed Bragg reflector fiber laser photowritten in Er/Yb codoped fiber that is capable of long-term operating at 500 °C. Highly saturated Bragg gratings are directly inscribed into the active fiber by use of the two-photon absorption at 193 nm. After annealing at elevated temperature, the stabilized gratings are strong enough for laser oscillation. The laser operates in robust single mode with output power more than 1 dBm and signal-tonoise ratio better than 70 dB over the entire temperature range from room temperature to 500 °C.
Original languageEnglish
Article number713331
JournalProceedings of SPIE - The International Society for Optical Engineering
Publication statusPublished - 23 Mar 2009
Event5th International Symposium on Instrumentation Science and Technology - Shenyang, China
Duration: 15 Sep 200918 Sep 2009


  • Fiber Bragg gratings
  • Fiber lasers
  • Fiber optic sensors
  • High temperature sensors

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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