Method for producing photo induced grating devices by UV irradia

Details Method for producing photo induced grating devices by UV irradia Method for producing photo induced grating devices by UV irradia

1997-08-15

1999-07-27

Lee, John D.

Optical waveguides

With optical coupler

Input/output coupler

65384, 430290, G02B 634

Patent

active

059304200

ABSTRACT:
In accordance with the invention, the index of refraction of a region of a glass body is selectively increased by treating the glass with hydrogen or deuterium, heating the hydrogenated glass to a temperature in excess of 500.degree. C., permitting the glass to rapidly cool below 100.degree. C. and exposing the region to UV radiation, preferably in the range 300 nm to 400 nm. The result is an increase in the refractive index of the irradiated region. Absorption is via a GODC band at 330 nm believed to result from a singlet to triplet transition. This band is about 1000 times weaker than the commonly used band at 240 nm. This process can be used to make and adjust a variety of optical waveguide devices such as photoinduced Bragg gratings and long period gratings.

REFERENCES:
patent: 5235659 (1993-08-01), Atkins et al.
patent: 5478371 (1995-12-01), Lemaire et al.
patent: 5745617 (1998-04-01), Starodubov et al.

Affiliated with

Also associated with

Rating

Method for producing photo induced grating devices by UV irradia 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 for producing photo induced grating devices by UV irradia, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for producing photo induced grating devices by UV irradia will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-888982