发明名称 |
OPTICAL DEVICE AND TRANSMITTER |
摘要 |
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. |
申请公布号 |
US2014294380(A1) |
申请公布日期 |
2014.10.02 |
申请号 |
US201414193677 |
申请日期 |
2014.02.28 |
申请人 |
Fujitsu Optical Components Limited |
发明人 |
Sugiyama Masaki;Maruyama Shinji |
分类号 |
G02B6/14;H04B10/079 |
主分类号 |
G02B6/14 |
代理机构 |
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代理人 |
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主权项 |
1. An optical device comprising:
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, wherein 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. |
地址 |
Kawasaki-shi JP |