Light-emitting diode

Details Light-emitting diode Light-emitting diode

1988-09-28

1990-12-04

James, Andrew J.

Coherent light generators

Particular component circuitry

Optical pumping

357 16, 357 17, 372 50, 372 48, H01L 3112

Patent

active

049757520

ABSTRACT:
An LED includes a semiconductor substrate, a first blocking layer formed on this semiconductor substrate, a second blocking layer formed on this first blocking layer, a first V-channel extending from the second blocking layer to the semiconductor substrate, and a stripe-geometry light-emitting region formed in the first V-channel. Light is emitted from the LED from one edge of the light-emitting region due to a flow of current in the light-emitting region, to which the current is confined by the blocking layers. The LED also comprises a second V-channel disposed at a certain distance from the other edge of the light-emitting region, on the optical path of the light emitted from this other edge, and an absorbing region is formed in the second V-channel. This absorbing region absorbs the light emitted from the other edge of the light-emitting region. The LED has excellent characteristics in which a stable output of spontaneously-emitted light can be obtained under a wide variety of operating conditions.

REFERENCES:
42 km Analog Video Signal Transmission in Singlemode Fibers Using a 1.3 .mu.m Edge-Emitting LED; M. Matsuura et al., The Transactions of the IECL of Japan, vol. E 69, No. 4, Apr. 1986, pp. 349.
1.5 .mu.m Tai Tammen Hakkogata Daiodo (A 1.5 .mu.m Edge-Emitting LED); Denshi Jouhou Tushin Gakkai Soritu 70 Syunen Kinen Sougou Zenkokutaikai Syowa 62 nen (1987 General Meeting of the Institute of Electronics, Information and Communication Engineers of Japan), No. 882, 4-44.
A Study of Far-Field Patterns from High Performance 1.3-.mu.m InGaAsP-InP Edge-Emitting LED's; Pascal Devoldere et al., IEEE Transactions on Electron Devices, vol. ED-30, No. 4, Apr. 1983.
140 Mb/s Transmission over 30 km of Single-Mode Fiber Using an LED Source; L. W. Ulbricht et al., Optoelectronic Devices Department, GTE Laboratories, Inc., IOOC-ECOC '85, pp. 819-822.

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