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Paper Abstract and Keywords
Presentation 2012-01-26 16:30
Mid-IR vertical transition DFB quantum cascade laser
Jun-ichi Hashimoto, Yukihiro Tsuji, Hiroshi Inada, Takamitsu Miura, Makoto Murata, Hiroyuki Yoshinaga, Hideki Yagi, Takashi Kato, Michio Murata, Tsukuru Katsuyama (SEI) PN2011-50 OPE2011-166 LQE2011-152 EST2011-100 MWP2011-68 Link to ES Tech. Rep. Archives: OPE2011-166 LQE2011-152 EST2011-100 MWP2011-68
Abstract (in Japanese) (See Japanese page) 
(in English) We designed a new vertical-transition active layer structure for a Mid-IR quantum cascade laser (QCL). In this structure, effective optical gain increase can be obtained by enhancing radiative transition selectively with LO phonon scattering increase suppressed. We fabricated vertical-transition FP-QCL having this active layer, and found that 30 % decrease of threshold current was achieved at room temperature compared with the conventional diagonal-transition FP-QCL. We also developed a complex-coupled type DFB-QCL using the same active layer, and succeeded in obtaining a single-mode pulse oscillation up to room temperature. The threshold current density at room temperature was about 3.8 kA/cm2, and the lasing wavelength dependence on temperature was about 0.4 nm/K.
Keyword (in Japanese) (See Japanese page) 
(in English) quantum cascade laser / QCL / vertical-transition / diagonal-transition / DFB / Mid-IR / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 414, LQE2011-152, pp. 109-113, Jan. 2012.
Paper # LQE2011-152 
Date of Issue 2012-01-19 (PN, OPE, LQE, EST, MWP) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
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Download PDF PN2011-50 OPE2011-166 LQE2011-152 EST2011-100 MWP2011-68 Link to ES Tech. Rep. Archives: OPE2011-166 LQE2011-152 EST2011-100 MWP2011-68

Conference Information
Committee EMT PN LQE OPE MWP EST IEE-EMT  
Conference Date 2012-01-26 - 2012-01-27 
Place (in Japanese) (See Japanese page) 
Place (in English) Osaka Univ. Convention Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Photonic integrated circuits and devices, swtiching, PLC, fiber devices, waveguide analysis, and others 
Paper Information
Registration To LQE 
Conference Code 2012-01-EMT-PN-LQE-OPE-MWP-EST-EMT 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Mid-IR vertical transition DFB quantum cascade laser 
Sub Title (in English)  
Keyword(1) quantum cascade laser  
Keyword(2) QCL  
Keyword(3) vertical-transition  
Keyword(4) diagonal-transition  
Keyword(5) DFB  
Keyword(6) Mid-IR  
Keyword(7)  
Keyword(8)  
1st Author's Name Jun-ichi Hashimoto  
1st Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
2nd Author's Name Yukihiro Tsuji  
2nd Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
3rd Author's Name Hiroshi Inada  
3rd Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
4th Author's Name Takamitsu Miura  
4th Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
5th Author's Name Makoto Murata  
5th Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
6th Author's Name Hiroyuki Yoshinaga  
6th Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
7th Author's Name Hideki Yagi  
7th Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
8th Author's Name Takashi Kato  
8th Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
9th Author's Name Michio Murata  
9th Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
10th Author's Name Tsukuru Katsuyama  
10th Author's Affiliation Sumitomo Electric Industries, LTD. (SEI)
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Speaker
Date Time 2012-01-26 16:30:00 
Presentation Time 25 
Registration for LQE 
Paper # IEICE-PN2011-50,IEICE-OPE2011-166,IEICE-LQE2011-152,IEICE-EST2011-100,IEICE-MWP2011-68 
Volume (vol) IEICE-111 
Number (no) no.412(PN), no.413(OPE), no.414(LQE), no.415(EST), no.416(MWP) 
Page pp.109-113 
#Pages IEICE-5 
Date of Issue IEICE-PN-2012-01-19,IEICE-OPE-2012-01-19,IEICE-LQE-2012-01-19,IEICE-EST-2012-01-19,IEICE-MWP-2012-01-19 


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