Regenerated distributed Bragg reflector fiber lasers for high-temperature operation
- Publication Type:
- Journal Article
- Optics Letters, 2013, 38 (14), pp. 2490 - 2492
- Issue Date:
This Letter presents distributed Bragg reflector (DBR) fiber lasers for high-temperature operation at 750°C. Thermally regenerated fiber gratings were used as the feedback elements to construct an erbium-doped DBR fiber laser. The output power of the fiber laser can reach 1 mW at all operating temperatures. The output power fluctuation tested at 750°C was 1.06% over a period of 7 hours. The thermal regeneration grating fabrication process opens new possibilities to design and to implement fiber laser sensors for extreme environments. © 2013 Optical Society of America.
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