Accession Number:

ADD015757

Title:

Technique to Prepare High-Reflectance Optical Fiber Bragg Gratings with Single Exposure In-Line on Fiber Draw Tower.

Descriptive Note:

Patent Application, Filed 21 Jan 93,

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

1993-01-21

Pagination or Media Count:

25.0

Abstract:

A process for making an optical reflection grating in a glass fiber includes exposing an unjacketed optic fiber to a single writing pulse from a pair of interfering light beams that form an interference pattern in the fiber. A novel optical fiber has at least one optical grating with a preselected Bragg spacing in at least one region of the fiber, with a periodic modulation in its index of refraction, with high thermal stability and narrow linewidth. A process for making an array of optical reflection gratings in a glass fiber includes exposing a fiber to a plurality of writing pulse from a pair of interfering light beams that form an interference pattern in the fiber, where these pulses are applied sequentially as the fiber is drawn from a draw furnace. A novel optical fiber has a plurality of unspliced gratings with high thermal stability and narrow linewidth. Author

Subject Categories:

  • Atomic and Molecular Physics and Spectroscopy
  • Optics
  • Refractory Fibers

Distribution Statement:

APPROVED FOR PUBLIC RELEASE