40-Gbit/s Operation of Ultracompact Photodetector-Integrated Dispersion Compensator Based on One-Dimensional Photonic Crystals
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概要
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Utilizing large optical group-velocity dependence on wavelength without polarization-mode dependence, we have developed an ultracompact dispersion compensator based on multiple one-dimensional coupled-defect-type photonic crystals. The photonic crystal of the compensator, designed for a 1.55-μm optical communication system, consists of a multilayer thin-film structure and defect layers. The thin-film structure is substrate-free, which enables the compensator to be small, that is, a 1.4-mm-edge cube. To obtain a large group-velocity difference, 60 substrate-free films were stacked to form the compensator. The passband of the compensator is 2 nm, and the group-delay time difference within the band is more than 100 ps. A dispersion-compensator module integrated with a photodetector was fabricated. A 40-Gbit/s non-return-to-zero optical-transmission experiment was carried out with the compensator, demonstrating dispersion-compensation operation over a 10-km standard single-mode fiber, the dispersion of which corresponds to 170 ps/nm.
- 2008-08-25
著者
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Arakawa Yasuhiko
Nanoelectronics Collaborative Research Center (ncrc) Institute Of Industrial Science (iis) The Unive
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Hosomi Kazuhiko
Nanoelectronics Collaborative Research Center Institute Of Industrial Science University Of Tokyo
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Katsuyama Toshio
Nanoelectronics Collaborative Research Center Institute Of Industrial Science University Of Tokyo
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Sugawara Toshiki
Central Research Laboratory Hitachi Ltd.
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Hosomi Kazuhiko
Nanoelectronics Collaborative Research Center, University of Tokyo, Tokyo 153-8505, Japan
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Sagawa Misuzu
Nanoelectronics Collaborative Research Center, University of Tokyo, Tokyo 153-8505, Japan
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Goto Shigeo
Nanoelectronics Collaborative Research Center, University of Tokyo, Tokyo 153-8505, Japan
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Sugawara Toshiki
Central Research Laboratory, Hitachi, Ltd., Kokubunji, Tokyo 185-8601, Japan
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Katsuyama Toshio
Nanoelectronics Collaborative Research Center, University of Tokyo, Tokyo 153-8505, Japan
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