Title :
Optically controlled surface emitting lasers
Author :
Chan, W.K. ; von Lehman, A. ; Florez, L.T. ; Nguyen, C.K. ; Harbison, J.P. ; Schwarz, S.A. ; Hart, D.L.
Author_Institution :
Bellcore, Red Bank, NJ, USA
Abstract :
SELs (surface emitting lasers) whose output power can be modulated by an external light source are reported. The vertically integrated device used is a heterojunction phototransistor (HPT) in series with a SEL so that the amplified photocurrent of the HPT drives the SEL. It is critical that this current exceed the threshold current of the laser with reasonable incident power. Both a linear mode of operation and a bistable mode are found at different voltage ranges. Even though the device has not yet been optimized, an overall optical power gain is observed.<>
Keywords :
integrated optoelectronics; optical modulation; phototransistors; semiconductor junction lasers; bistable mode; heterojunction phototransistor; linear operation mode; optical power gain; semiconductor lasers; surface emitting lasers; vertically integrated device; Heterojunctions; Light sources; Optical bistability; Optical control; Optical modulation; Phototransistors; Power generation; Power lasers; Stimulated emission; Surface emitting lasers;
Conference_Titel :
Electron Devices Meeting, 1990. IEDM '90. Technical Digest., International
Conference_Location :
San Francisco, CA, USA
DOI :
10.1109/IEDM.1990.237088
