Circular grating surface emitting laser diode

Details Circular grating surface emitting laser diode Circular grating surface emitting laser diode

1995-01-27

1996-10-01

Bovernick, Rodney B.

Coherent light generators

Particular resonant cavity

Distributed feedback

372102, 372 50, 257 98, 359575, H01S 318, H01S 308, H01L 3300, G02B 518

Patent

active

055616836

ABSTRACT:
A surface emitting laser diode comprises a circular grating defined on the top surface of the diode for emitting a laser therethrough, an active layer for generating the laser in the region thereof under the circular grating, a reflection layer for preventing the laser from emitting through the bottom surface of the diode and a first contact, which includes a plurality of electrodes, for providing the active layer with carriers of a first conduction type and a second contact for providing the active layer with carriers of a second conduction type.

REFERENCES:
patent: 5164946 (1992-11-01), Lang
patent: 5448581 (1995-11-01), Wu et al.
Fallahi, M. et al., "Low Divergence Electrically Pumped Circular-Grating . . . ", Elect. Lett., vol. 29 No. 16, Aug. 5, 1993, pp. 1412-1414.

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