Two section blue laser diode with reduced output power droop

Details Two section blue laser diode with reduced output power droop Two section blue laser diode with reduced output power droop

2008-04-08

2008-04-08

Tran, M. (Department: 2818)

Coherent light generators

Particular active media

Semiconductor

C438S048000

Reissue Patent

active

10737669

ABSTRACT:
A III-V nitride blue laser diode has an amplifier region and a modulator region. The amplifier region has a constant current to keep the region near the lasing threshold. The modulator region has a small varying forward current or reverse bias voltage which controls the light output of the laser. This two section blue laser diode requires much lower power consumption than directly modulated lasers which reduces transient heating and “drooping” of the light output.

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Jiang Hongtao et al.: “Linear electro-optic effect due to the built-in electric field in inGaN/GaN quantum wells” APPLIED PHYSICS LETTERS, AMERICAN INSTITUTE OF PHYSICS. NEW YORK US, vol. 75, No. 13, 27 Sep. 1999 (Sep. 27, 1999), pp. 1932-1934, XP012023617 ISSN:0003-695. Whole document.
Kneissl, Michael, et al: “Two-Section InGaN Multiple-Quantum-Well Laser Diode With Integrated Electroabsorption Modulator” Applied Physics Letters, American Institute Of Physics, vol. 80, No. 18, May 6, 2002, pp. 3283-3285.
Jiang, Hongtao, et al. “Linear Electro-Optic effect due to the built-in electric field in InGaN/GaN Quantum Wells” Applied Physics Letters, American Institute of Physics, vol. 75, No. 13, Sep. 27, 1999, pp. 1932-1934.

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