| Presentation | 2009-01-29 Generation of microwave signal by using difference frequency generation in LiTaO_3 microwave rectangular waveguide Quang Hong Ngo, Hiroshi Murata, Yasuyuki Okamura, |
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| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | We have proposed the generation of microwave signal and the detection of high-speech optical modulation signal by using difference frequency generation in LiTaO_3 microwave rectangular waveguide. Quasi-phase-matching technique by using a periodically-poled structure is applicable for getting high conversion efficiency. A resonance effect by constructing a Fabry-Perot cavity is also attractive for improving the conversion efficiency. In the experiment using the fabricated proto-type device, the 15GHz signal was clearly observed. The measured frequency response of this signal was in good agreement with the theoretically expected frequency response. In addition, a microwave lens was used for coupling between the fabricated device and a measuring antenna. As a result, the observed signal was enhanced compared with the one without the lens. We expect this generation scheme to be applicable for detecting optical modulation signals with advanced modulation formats (FSK/PSK/APSK). |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Difference frequency generation (DFG) / Quasi-phase-matching (QPM) / Microwave waveguide |
| Paper # | PN2008-48,OPE2008-151,LQE2008-148 |
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| Conference Information | |
| Committee | LQE |
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| Conference Date | 2009/1/22(1days) |
| Place (in Japanese) | (See Japanese page) |
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| 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) | Generation of microwave signal by using difference frequency generation in LiTaO_3 microwave rectangular waveguide |
| Sub Title (in English) | |
| Keyword(1) | Difference frequency generation (DFG) |
| Keyword(2) | Quasi-phase-matching (QPM) |
| Keyword(3) | Microwave waveguide |
| 1st Author's Name | Quang Hong Ngo |
| 1st Author's Affiliation | Graduate School of Engineering Science, Osaka University() |
| 2nd Author's Name | Hiroshi Murata |
| 2nd Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| 3rd Author's Name | Yasuyuki Okamura |
| 3rd Author's Affiliation | Graduate School of Engineering Science, Osaka University |
| Date | 2009-01-29 |
| Paper # | PN2008-48,OPE2008-151,LQE2008-148 |
| Volume (vol) | vol.108 |
| Number (no) | 419 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |