BRAGG MIRRORS FOR FIBRE LASERS

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Authors
  1. Mathieu, P.
Corporate Authors
Defence Research Establishment Valcartier, Valcartier QUE (CAN);Communications Research Centre, Ottawa ONT (CAN)
Abstract
This report describes the development of in-fiber Bragg gratings used as cavity mirrors for fiber lasers. The principal difficulty is to fabricate a 99% total reflector and a 4 % output reflector with similar bandwidths and an identical operating wavelength. Photosensitivity at a light wavelength of 193 nm using an eximer laser and a zero-order-nulled phase mask was used to photoimprint the reflectors directly in Erbium-doped fiber. Two laser cavities were successfully fabricated and delivered to DREV. The long term resistance of the Bragg gratings to high light intensities in a Q-switched laser cavity looks promising.
Keywords
Eximer lasers
Report Number
DREV-CR-860 — Final Report
Date of publication
01 Aug 1995
Number of Pages
12
DSTKIM No
96-02664
CANDIS No
180687
Format(s):
Document Image stored on Optical Disk;Hardcopy

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