Accession Number:

AD1066327

Title:

Measurement of UV-induced Birefringence by Thermal Annealing of a Distributed Bragg Reflector Fiber Laser

Descriptive Note:

Technical Report

Corporate Author:

NAVAL RESEARCH LAB WASHINGTON DC WASHINGTON United States

Personal Author(s):

Report Date:

2019-01-15

Pagination or Media Count:

12.0

Abstract:

The photoinduced index change of a grating in a distributed Bragg reflector DBR fiber laser was annealed at temperatures up to 700 deg C. In monitoring the longitudinal modes of the laser during annealing, two distinct emission bands emerged, representing the polarization dependent reflectivities of the grating being thermally processed. By fitting the emission bands to a Gaussian, a measure of the fibers nominal 7 x 10expn-6 and induced 5 x 10expn-6 birefringence was determined.

Subject Categories:

  • Optics
  • Thermodynamics
  • Lasers and Masers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE