Beam collimation using multiple coupled elements

Details Beam collimation using multiple coupled elements Beam collimation using multiple coupled elements

1975-03-26

1976-07-13

La Roche, Eugene

Oscillators

Molecular or particle resonant type

357 18, H01S 319

Patent

active

039696863

ABSTRACT:
An electrically pumped, distributed feedback laser having all side surfaces of the active laser medium cleaved and a periodic structure at a 45.degree. angle to all of the cleaved surfaces. Current confining channels restrict pumping current to selected regions of the active laser medium to provide sufficient feedback such that two parallel filamentary areas of the active medium lase. By having multiple lasing filaments the divergence of the output beam in the direction of the width of the filaments is reduced by a factor proportional to the number of filamentary lasing areas.

REFERENCES:
patent: 3248671 (1966-04-01), Dill et al.
patent: 3868589 (1975-02-01), Wang
kazarinov et al., Injection Heterojunction Laser with a Diffraction Gratine, Soviet Physics-Semiconductors, vol. 6, No. 7, Jan. 1973, pp. 1184-1189.
Nakamura et al., Analysis of . . . Double Heterojunction . . . With Corrugated Interface, Optics Communications, vol. 11, No. 1, May 1974, pp. 18-20.
Nakamura et al., Distributed-Feedback Diode Lasers, Applied Physics Letters, vol. 25, No. 9, Nov. 1, 1974, pp. 487-488.

Affiliated with

Also associated with

Rating

Beam collimation using multiple coupled elements does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Beam collimation using multiple coupled elements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Beam collimation using multiple coupled elements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1742171