×

Bragg reflection gratings in optical fibres

  • US 5,956,442 A
  • Filed: 12/04/1995
  • Issued: 09/21/1999
  • Est. Priority Date: 12/03/1994
  • Status: Expired due to Fees
First Claim
Patent Images

1. A method of writing a chirped Bragg reflection grating in a photosensitive optical fiber, which grating is created by traversing a beam of electro-magnetic radiation along the fiber axis, which beam is incident upon the fiber through a diffraction grating located adjacent the fiber and oriented to have diffracting elements extending at an angle to the fiber axis, wherein the fiber is longitudinally tensioned by an amount that is varied during the writing therein of the grating.

View all claims
  • 3 Assignments
Timeline View
Assignment View
    ×
    ×