Reduction of phase-difference deviation in 90.DEG. optical hybrid over wide wavelength range
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概要
- 論文の詳細を見る
We describe a technique for reducing the wavelength-dependent phase-difference deviation between in-phase and quadrature components in an 90° optical hybrid consisting of four 3-dB couplers and a phase shifter. We fabricated the 90° hybrid with our proposed technique, which uses silica-based planar lightwave circuit technology. The fabricated 90° hybrid exhibits a low phase-difference deviation from 90° of less than 0.7° over the C- and L-bands, and will be useful in a digital coherent receiver for transmission systems operating at 100Gbit/s or more.
- The Institute of Electronics, Information and Communication Engineersの論文
著者
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Hashimoto Toshikazu
Ntt Photonics Laboratories
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Saida Takashi
Ntt Photonics Laboratories
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Nasu Yusuke
Ntt Photonics Laboratories
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Sakamaki Yohei
Ntt Photonics Laboratories Ntt Corporation
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Hattori Kuninori
Ntt Photonics Laboratories Ntt Corporation
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Takahashi Hiroshi
Ntt Photonics Laboratories Nippon Telegraph And Telephone Corp.
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Sakamaki Yohei
NTT Photonics Laboratories
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