Bragg Mirrors for Fibre Lasers

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 excimer 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.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 1995
Accession Number
ADA593819

Entities

People

  • K. O. Hill
  • Pierre Mathieu

Organizations

  • Communications Research Centre Canada

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Amplifiers
  • Bandwidth
  • Bragg Gratings
  • Collision Avoidance
  • Collision Avoidance Systems
  • Fabrication
  • Fiber Bragg Gratings
  • Fibers
  • Intensity
  • Laser Resonators
  • Lasers
  • Mirrors
  • Optical Fiber Lasers
  • Optical Fibers
  • Photosensitivity
  • Reflectivity
  • Reflectors

Fields of Study

  • Physics

Readers

  • Optical Physics and Photonics.

Technology Areas

  • Directed Energy