Isolation of passive devices and integration with active devices

Details Isolation of passive devices and integration with active devices Isolation of passive devices and integration with active devices

1974-12-09

1976-04-06

Corbin, John K.

350 96C, G02B 514

Patent

active

039485838

ABSTRACT:
The comprehensive large scale integration of thin-film optical circuits is made possible by a series of related developments. The key concept is the isolation of the high index substrate, necessary to active devices, wherever it is desired to have a passive device, by the interposition of an oxide layer such as SiO.sub.2. It is preferred that the passive devices and the SiO.sub.2 by amorphous. This new arrangement allows the use of discrete thin-film corner reflectors, instead of distributed feedback, in resonant active devices and wherever a reflector or beam-splitter is needed. Further, the active devices may be located photolithographically by etching windows in the SiO.sub.2 layer. All of the active devices share a common active layer, which forms the passive devices wherever it extends between windows and simultaneously is the light guiding layer throughout.

REFERENCES:
patent: 3537020 (1970-10-01), Anderson
patent: 3610727 (1971-10-01), Ulrich
patent: 3725809 (1973-04-01), Ulrich et al.
patent: 3760297 (1973-09-01), Thompson
patent: 3774987 (1973-11-01), Boivin
patent: 3792239 (1974-02-01), Ohlhaber et al.
boivin, "Thin-Film Laser-to-Fiber Coupler," Applied Optics, Vol. 13, No. 2, Feb. 1974, pp. 391-395.
Ostrowsky et al., "Integrated Optical Photodetector," Applied Physics Letters, Vol. 22, No. 9, May 1973, pp. 463-464.
"Optical Waveguide Shares Chip with Active Elements," Electronics International, Vol. 46, July 1973, pp. 56-57.
Reinhart et al., "Monolithically Integrated AlGaAs Double Heterostructure Optical Components," Appl. Phys. Lett., Vol. 25, No. 10, Nov. 1974, pp. 622-624.

Affiliated with

Also associated with

Rating

Isolation of passive devices and integration with active devices does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Isolation of passive devices and integration with active devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Isolation of passive devices and integration with active devices will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1573519