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首页> 外文期刊>Japanese journal of applied physics >40-Gbit/s Operation of Ultracompact Photodetector-Integrated Dispersion Compensator Based on One-Dimensional Photonic Crystals
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40-Gbit/s Operation of Ultracompact Photodetector-Integrated Dispersion Compensator Based on One-Dimensional Photonic Crystals

机译：基于一维光子晶体的超紧凑型光电探测器集成色散补偿器的40Gbit / s工作

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摘要

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 2nm, and the group-delay time difference within the band is more than 100ps. 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 170psm.
机译：利用对波长的大光学组速度依赖性而没有偏振模依赖性，我们开发了基于多个一维耦合缺陷型光子晶体的超紧凑色散补偿器。补偿器的光子晶体设计用于1.55μm的光通信系统，由多层薄膜结构和缺陷层组成。薄膜结构是无基板的，这使得补偿器很小，即边缘为1.4mm。为了获得较大的组速度差，将60个无基板的薄膜堆叠起来以形成补偿器。补偿器的通带为2nm，带内的群延迟时间差大于100ps。制造了与光电检测器集成的色散补偿器模块。使用补偿器进行了40 Gbit / s的不归零光学传输实验，展示了在10 km标准单模光纤上的色散补偿操作，其色散对应于170ps / nm。

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