Presentation 1999/2/24
Improvement of characteristics of GaAs-based vertical-cavity surface-emitting laser on Si substrate
T. Nehagi, T. Fukami, F. Kunimasa, T. Egawa, T. Jimbo, M. Umeno,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) We introduced TCA for heteroepitaxial growth of GaAs on Si, for obtaining lower dislocation density. The temperature of TCA which we have so far introduced is 350℃~850℃. In this study, by introducing TCA of 300℃~l000℃, we confirmed not merely the decrease in the dislocation density but the improvement of the surface roughness of GaAs on Si. By using the TCA of 300℃~1000℃, we confirmed the improvement of reflectivity spectra of AlAs/Al_<0.1>Ga_<0.9>As DBR. In addition, In_<0.02>Ga_<0.98>As 10QWs VCSEL on Si exhibits a cw threshold current of 102mA (6.19kA/cm-2) at 230K.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) MOCVD / GaAs on Si / Thermal Cycle Annealing / morphology / Distributed Bragg Reflector / VCSEL
Paper # LQE98-142
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Conference Information
Committee LQE
Conference Date 1999/2/24(1days)
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Registration To Lasers and Quantum Electronics (LQE)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) Improvement of characteristics of GaAs-based vertical-cavity surface-emitting laser on Si substrate
Sub Title (in English)
Keyword(1) MOCVD
Keyword(2) GaAs on Si
Keyword(3) Thermal Cycle Annealing
Keyword(4) morphology
Keyword(5) Distributed Bragg Reflector
Keyword(6) VCSEL
1st Author's Name T. Nehagi
1st Author's Affiliation Department of Electrical and Computer Engineering()
2nd Author's Name T. Fukami
2nd Author's Affiliation Department of Electrical and Computer Engineering
3rd Author's Name F. Kunimasa
3rd Author's Affiliation Department of Electrical and Computer Engineering
4th Author's Name T. Egawa
4th Author's Affiliation Research center for Micro-Structure Devices
5th Author's Name T. Jimbo
5th Author's Affiliation Department of Environmental Technology
6th Author's Name M. Umeno
6th Author's Affiliation Department of Electrical and Computer Engineering
Date 1999/2/24
Paper # LQE98-142
Volume (vol) vol.98
Number (no) 617
Page pp.pp.-
#Pages 6
Date of Issue