公开(公告)号：US20140294380A1

公开(公告)日：2014-10-02

申请号：US14193677

申请日：2014-02-28

Applicant: Fujitsu Optical Components Limited

Inventor： Masaki Sugiyama ,  Shinji Maruyama

IPC: G02B6/14 ,  H04B10/079

CPC classification number: G02F1/0356 ,  G02B6/1228 ,  G02B6/14 ,  G02B6/4286 ,  G02B2006/12123 ,  G02F1/0316 ,  G02F1/0327 ,  G02F1/225 ,  G02F1/2255 ,  G02F2001/212 ,  G02F2201/58 ,  G02F2202/20 ,  H04B10/0779

Abstract: An optical device includes an optical waveguide that includes an incident waveguide, parallel waveguides along an electrode, and emission waveguides, formed on a substrate having an electro-optical effect, a first emission waveguide among the emission waveguides is set as an output waveguide of signal light, for output to an external destination and a second emission waveguide among the emission waveguides is set as a monitoring optical waveguide for the signal light; a photodetector that is disposed over the monitoring optical waveguide; and a groove formed on a portion of the substrate, where the photodetector of the monitoring optical waveguide is disposed. The monitoring optical waveguide has a width that, as compared with the width at a starting point side, is formed to increase as the monitoring optical waveguide approaches the groove.

Abstract translation: 光学装置包括光波导，其包括入射波导，沿着电极的平行波导，以及形成在具有电光效应的基板上的发射波导，发射波导中的第一发射波导被设置为信号的输出波导 将用于输出到外部目的地的光和发射波导中的第二发射波导设置为信号光的监视光波导; 设置在监视光波导上的光电检测器; 以及形成在基板的一部分上的凹槽，其中设置有监视光波导的光电检测器。 监视光波导具有与监视光波导接近凹槽时相比，起始点侧的宽度形成为增加的宽度。