Coherent light generators – Particular active media – Semiconductor
Patent
1980-11-04
1982-11-16
Davie, James W.
Coherent light generators
Particular active media
Semiconductor
357 17, H01S 319
Patent
active
043597742
ABSTRACT:
A light emitting device comprises a substrate, a first confining layer overlying the substrate, an active layer overlying the first confining layer, a second confining layer overlying the active layer and a capping layer overlying the second confining layer. The improvement is the interposition of an absorber layer which absorbs light at the wavelength of the emission between the substrate and the first confining layer and a capping layer which absorbs light at the wavelength of the emission. The improved device exhibits an output beam which has a narrow angular intensity pattern in the plane perpendicular to the plane of the layers and to the end surfaces of the device.
REFERENCES:
patent: 3747016 (1973-07-01), Kressel et al.
patent: 3753801 (1973-08-01), Lockwood et al.
patent: 3982261 (1976-09-01), Antypas
patent: 4092659 (1978-05-01), Ettenberg
patent: 4116733 (1978-09-01), Olsen et al.
patent: 4178564 (1979-12-01), Ladany et al.
patent: 4233090 (1980-11-01), Howrylo et al.
patent: 4328469 (1982-05-01), Scifres et al.
Ettenberg et al., "Very High Radiance Edge-Emitting LED", IEEE Journal of Quantum Electronics, vol. QE12, No. 6, Jun. 1976, pp. 360-364.
Utaka et al., "Room Temperature Operation of GaInAsP/InP Integrated Twin-Guide Lasers with First-Order Distributed Bragg Reflector", Conference: Integrated and Guided-Wave Optics.
Technical Digest, Incline Village, NV, USA, 28-30 Jan. 1980, pp. MC5-1-MC5-4.
Olsen et al., "InGaAsP Quaternary Alloys: Composition, Refractive Index and Lattice Mismatch", Journal of Electronic Materials, vol. 9, No. 6, 1980, pp. 977-987.
Botez Dan
Olsen Gregory H.
Burke William J.
Cohen Donald S.
Davie James W.
Morris Birgit E.
RCA Corporation
LandOfFree
Light emitting device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Light emitting device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light emitting device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1438560