Coherent light generators – Particular active media – Semiconductor
Patent
1982-07-13
1985-04-16
Davie, James W.
Coherent light generators
Particular active media
Semiconductor
357 17, 357 90, H01S 319
Patent
active
045120226
ABSTRACT:
A semiconductor laser having a graded index waveguide layer has low current thresholds.
REFERENCES:
patent: 3911376 (1975-10-01), Thompson
patent: 4152044 (1979-05-01), Liu
patent: 4328469 (1982-05-01), Scifres et al.
Tsang, "A New Current-Injection Heterostructure Laser: The Double-Barrier-Double-Heterostructure Laser", APL 38(11), Jun. 1, 1981, pp. 635-637.
R. F. Kazarinov and G. V. Tsarenkov, "Theory of a Variable Gap Laser," Soviet Physics Semiconductors, vol. 10, No. 2, (1976), pp. 178-182.
AT&T Bell Laboratories
Davie James W.
Laumann Richard D.
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