Presentation 2009-12-11
Continuous wave operation of GaJnAsP/InP thin film lateral current injection lasers on SI-InP
Tadashi OKUMURA, Hitomi ITO, Daisuke KONDO, Nobuhiko NISHIYAMA, Shigehisa ARAI,
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Abstract(in English) Semiconductor membrane laser, which consists of a high-ondex contrast waveguide, is very promising for low power light sources with very short cavity length due to an enhanced modal gain. We have fabricated a lateral current injection (LCI) p-i-n structure with a thin GaInAsP core layer on a semi insulating substrate for injection type membrane laser, however the device characteristics were not satisfactory to realize high performance operation based on high-index contrast waveguides. In this paper, we report improved lasing characteristics, ie. an increase of the internal quantum efficiency, reduced threshold current density, and increased differential quantum efficiency. A room-temperature (RT) continuous wave (CW) operation with a threshold current of 11 mA, which corresponds to a threshold current density of 0.9 kA/cm^2, was obtained for a 1.7 μm stripe width and 730 μm long Fabry-Perot (F.P.) cavity laser.
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Keyword(in English) Semiconductor membrane laser / Lateral current injection / Semi-insulating substrate / High optical confinement
Paper # LQE2009-147
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Conference Information
Committee LQE
Conference Date 2009/12/4(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) Continuous wave operation of GaJnAsP/InP thin film lateral current injection lasers on SI-InP
Sub Title (in English)
Keyword(1) Semiconductor membrane laser
Keyword(2) Lateral current injection
Keyword(3) Semi-insulating substrate
Keyword(4) High optical confinement
1st Author's Name Tadashi OKUMURA
1st Author's Affiliation Quantum Nanoelectronics Research Center, Dept. of Electrical and Electronic Engineering Tokyo Institute of Technology()
2nd Author's Name Hitomi ITO
2nd Author's Affiliation Quantum Nanoelectronics Research Center, Dept. of Electrical and Electronic Engineering Tokyo Institute of Technology
3rd Author's Name Daisuke KONDO
3rd Author's Affiliation Quantum Nanoelectronics Research Center, Dept. of Electrical and Electronic Engineering Tokyo Institute of Technology
4th Author's Name Nobuhiko NISHIYAMA
4th Author's Affiliation Quantum Nanoelectronics Research Center, Dept. of Electrical and Electronic Engineering Tokyo Institute of Technology
5th Author's Name Shigehisa ARAI
5th Author's Affiliation Quantum Nanoelectronics Research Center, Dept. of Electrical and Electronic Engineering Tokyo Institute of Technology
Date 2009-12-11
Paper # LQE2009-147
Volume (vol) vol.109
Number (no) 331
Page pp.pp.-
#Pages 6
Date of Issue