| Presentation | 2012-01-26 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, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(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/cm^2, and the lasing wavelength dependence on temperature was about 0.4 nm/K. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | quantum cascade laser / QCL / vertical-transition / diagonal-transition / DFB / Mid-IR |
| Paper # | PN2011-50,OPE2011-166,LQE2011-152,EST2011-100,MWP2011-68 |
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| Conference Information | |
| Committee | MWP |
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| Conference Date | 2012/1/19(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
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| Paper Information | |
| Registration To | Microwave and Millimeter-wave Photonics (MWP) |
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| Language | JPN |
| 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 |
| 1st Author's Name | Jun-ichi Hashimoto |
| 1st Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD.() |
| 2nd Author's Name | Yukihiro Tsuji |
| 2nd Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| 3rd Author's Name | Hiroshi Inada |
| 3rd Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| 4th Author's Name | Takamitsu Miura |
| 4th Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| 5th Author's Name | Makoto Murata |
| 5th Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| 6th Author's Name | Hiroyuki Yoshinaga |
| 6th Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| 7th Author's Name | Hideki Yagi |
| 7th Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| 8th Author's Name | Takashi Kato |
| 8th Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| 9th Author's Name | Michio Murata |
| 9th Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| 10th Author's Name | Tsukuru Katsuyama |
| 10th Author's Affiliation | Transmission Devices R&D Laboratories, Sumitomo Electric Industries, LTD. |
| Date | 2012-01-26 |
| Paper # | PN2011-50,OPE2011-166,LQE2011-152,EST2011-100,MWP2011-68 |
| Volume (vol) | vol.111 |
| Number (no) | 416 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |