Takahashi Hiroshi
NTT Photonics Laboratories, Nippon Telegraph and Telephone Corporation, 3-1 Morinosato Wakamiya, Atsugi, Kanagawa, 243-0198 Japan.
Opt Express. 2011 Dec 12;19(26):B173-80. doi: 10.1364/OE.19.00B173.
Both high-density multiplexing and high-speed transmission are required for large capacity networks supporting broadband service penetration. Silica waveguide optical circuit technology can provide key optical devices for such systems because it has high controllability as regards optical amplitude and sufficient phase for realizing sophisticated optical interferometric circuits. This paper reviews recent progress on this technology, and reports experimental results for an ultra wideband AWG, an optical OFDM filter, a demodulator for a coherent receiver and a highly functional modulator.
对于支持宽带服务普及的大容量网络而言，高密度复用和高速传输都是必需的。硅基光波导光电路技术可以为这类系统提供关键光学器件，因为它在光幅度方面具有高度可控性，并且具备实现复杂光学干涉电路所需的足够相位。本文回顾了该技术的最新进展，并报告了超宽带阵列波导光栅、光正交频分复用滤波器、相干接收机解调器以及高功能调制器的实验结果。
