High temperature sustainable fiber bragg gratings

Details High temperature sustainable fiber bragg gratings High temperature sustainable fiber bragg gratings

2009-05-21

2010-11-16

Peng, Charlie (Department: 2883)

Optical waveguides

With optical coupler

Input/output coupler

C264S001270, C065S392000

Reexamination Certificate

active

07835605

ABSTRACT:
An optical fiber200with a high thermal resistance fiber Bragg grating (FBG)130. Compared to existing FBG's, the invention provides greatly enhanced thermal stability, being stable up to 1200° C. The grating reflectivity and resonant wavelength are maintained for extended duration at high temperatures. The FBG is thus suitable in high temperature sensors. The high thermal resistance of the FBG is obtained in a method of pre-annealing the optical fiber105at high temperature prior to inscribing the FBG. The high thermal resistance is optionally enhanced in a post-FBG creation step of heat treating the optical fiber105and FBG.

REFERENCES:
patent: 5400422 (1995-03-01), Askins et al.
patent: 6542668 (2003-04-01), Gaylord et al.
patent: 6788864 (2004-09-01), Ahmad et al.
patent: 7574075 (2009-08-01), Xia
patent: 2005/0259944 (2005-11-01), Anderson et al.
patent: 2008/0245960 (2008-10-01), Csutak
Canning, “Fibre gratings and devices for sensors and lasers,” Laser & Photon. Rev. 2, No. 4, 275-289, May 2008.

Affiliated with

Also associated with

Rating

High temperature sustainable fiber bragg gratings does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with High temperature sustainable fiber bragg gratings, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and High temperature sustainable fiber bragg gratings will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4198131