Method of making stable optical devices employing radiation-indu

Details Method of making stable optical devices employing radiation-indu Method of making stable optical devices employing radiation-indu

1995-12-04

1997-04-15

Hoffmann, John

Glass manufacturing

Processes of manufacturing fibers, filaments, or preforms

Process of manufacturing optical fibers, waveguides, or...

65 2918, 385123, 430290, 430321, C03B 3700

Patent

active

056204965

ABSTRACT:
The present invention is predicated upon the discovery by applicants of a relationship describing thermal decay of radiation-induced index changes and a mechanism which permits stabilization by accelerated aging. Specifically, the induced index change decays in proportion to 1/(1+At.sup..alpha.) where A and .alpha. are functions of temperature, and the decay can be accelerated by heat treatment. As a consequence, the extent of decay can be determined for arbitrary time and temperature and, significantly, an appropriate heat treatment can be scheduled for making a device stable within predeterminable limits.

REFERENCES:
patent: 2746193 (1956-05-01), Billian
patent: 3542536 (1970-11-01), Flam
patent: 4777146 (1988-10-01), Bylsma
patent: 5066133 (1991-11-01), Brinza
patent: 5218655 (1993-06-01), Mizrahi
patent: 5235659 (1993-08-01), Atkins
patent: 5287427 (1994-02-01), Atkins
P.J. Lemaire, et al. "High-temperature Stability of Phase Gratings in GeO.sub.2 -Doped Optical Fibers", Optical Fiber Communications Conference, Paper FA7, (1993)-Nov.
Photosensitivity and Self-Organization in Optical Fibers and Waveguides, SPIE -The International Society for Optical Engineering, vol. 2044 (1993).

Affiliated with

Also associated with

Rating

Method of making stable optical devices employing radiation-indu does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of making stable optical devices employing radiation-indu, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of making stable optical devices employing radiation-indu will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-357378