Presentation 1999/2/24
1.3μm Strained Quantum Well Lasers on InGaAs Ternary Substrates
Koji Otsubo, Yoshito Nishijima, Toru Uchida, Hajime Shoji, Hiroshi Ishikawa,
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Abstract(in English) The application of InGaAs ternary substrates to 1.3 μm semiconductor lasers is one of the promising candidates to realize excellent temperature characteristics. We have achieved a record high characteristic temperature (T_0) of 140 K and a lasihg at 210℃ in 1.2μm strained quantum well lasers on In_<0.22>Ga_<0.78>As ternary substrates. The T_0 strongly depends on the threshold current density, which can be numerically explained by assuming a certain Auger coefficient. We have also reallzed lasing at 1.3μm by fabricating the strained quantum well lasers on In_<0.31>Ga_<0.69>As substrates. Their temperature characteristics should be further improved by fabricating lasers on quality InGaAs substrates and, then, achieving a much lower threshold current density. The application of InGaAs ternary substrates to vertical cavity surface emitting lasers (VCSELs) is also discussed.
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Keyword(in English) InGaAs ternary substrate / strained quantum well laser / characteristic temperature / VCSEL
Paper # LQE98-150
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Conference Information
Committee LQE
Conference Date 1999/2/24(1days)
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Paper Information
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) 1.3μm Strained Quantum Well Lasers on InGaAs Ternary Substrates
Sub Title (in English)
Keyword(1) InGaAs ternary substrate
Keyword(2) strained quantum well laser
Keyword(3) characteristic temperature
Keyword(4) VCSEL
1st Author's Name Koji Otsubo
1st Author's Affiliation RWCP Optical Interconnection Fujitsu Laboratory()
2nd Author's Name Yoshito Nishijima
2nd Author's Affiliation Fujitsu Laboratories Ltd.
3rd Author's Name Toru Uchida
3rd Author's Affiliation RWCP Optical Interconnection Fujitsu Laboratory
4th Author's Name Hajime Shoji
4th Author's Affiliation Fujitsu Laboratories Ltd.
5th Author's Name Hiroshi Ishikawa
5th Author's Affiliation RWCP Optical Interconnection Fujitsu Laboratory
Date 1999/2/24
Paper # LQE98-150
Volume (vol) vol.98
Number (no) 617
Page pp.pp.-
#Pages 6
Date of Issue