Generation of microwave signal by using difference frequency generation in LiTaO3 microwave rectangular waveguide (レーザ・量子エレクトロニクス)
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概要
- 論文の詳細を見る
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).
- 社団法人電子情報通信学会の論文
- 2009-01-22
著者
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Ngo Quang
Graduate School Of Engineering Science Osaka University
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MURATA Hiroshi
Graduate School of Engineering Science, Osaka University
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OKAMURA Yasuyuki
Graduate School of Engineering Science, Osaka University
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Okamura Yasuyuki
Graduate School Of Engineering Science Osaka University
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Murata Hiroshi
Graduate School Of Engineering Science Osaka University
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