| Presentation | 2011-12-16 6～7μm quantum cascade lasers based on the anti-crossed dual-upper-state design Kazuue Fujita, Tatsuo Dougakiuchi, Shinichi Furuta, Atsushi Sugiyama, Takahide Ochiai, Akio Ito, Tadataka Edamura, Masamichi Yamanishi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The authors report high temperature continuous-wave (cw) operations of broad-gain quantum cascade lasers based on the dual-upper-state to multiple-lower-state design. The devices exhibit extremely wide electroluminescence (>600 cm^<-1> FWHM) at room temperature. Despite showing such broad electroluminescence spectra, the HR-coated, buried heterostructure lasers operating at 6.8 um demonstrate a low threshold current density of ～1.5 kA/cm^2 and a high power of >500 mW in cw mode at 300 K. The maximum cw operating temperature of above 100 ℃ is achieved. In addition, the tuning ranges of 248 cm^<-1> (Δλ/λ_0～17%) in cw operation are demonstrated with an external cavity configuration. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Quantum cascade laser / Mid infrared laser / Resonant tunneling |
| Paper # | LQE2011-129 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2011/12/9(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Lasers and Quantum Electronics (LQE) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | 6～7μm quantum cascade lasers based on the anti-crossed dual-upper-state design |
| Sub Title (in English) | |
| Keyword(1) | Quantum cascade laser |
| Keyword(2) | Mid infrared laser |
| Keyword(3) | Resonant tunneling |
| 1st Author's Name | Kazuue Fujita |
| 1st Author's Affiliation | Central Research Labs., Hamamatsu Photonics K.K.() |
| 2nd Author's Name | Tatsuo Dougakiuchi |
| 2nd Author's Affiliation | Central Research Labs., Hamamatsu Photonics K.K. |
| 3rd Author's Name | Shinichi Furuta |
| 3rd Author's Affiliation | Central Research Labs., Hamamatsu Photonics K.K. |
| 4th Author's Name | Atsushi Sugiyama |
| 4th Author's Affiliation | Hamamatsu Photonics K.K. |
| 5th Author's Name | Takahide Ochiai |
| 5th Author's Affiliation | Hamamatsu Photonics K.K. |
| 6th Author's Name | Akio Ito |
| 6th Author's Affiliation | Hamamatsu Photonics K.K. |
| 7th Author's Name | Tadataka Edamura |
| 7th Author's Affiliation | Central Research Labs., Hamamatsu Photonics K.K. |
| 8th Author's Name | Masamichi Yamanishi |
| 8th Author's Affiliation | Central Research Labs., Hamamatsu Photonics K.K. |
| Date | 2011-12-16 |
| Paper # | LQE2011-129 |
| Volume (vol) | vol.111 |
| Number (no) | 359 |
| Page | pp.pp.- |
| #Pages | 4 |
| Date of Issue | |