发明名称 |
Bias adjustment method for optical SSB modulator or optical FSK modulator |
摘要 |
A method of appropriately adjusting a bias signal of an optical modulator is provided. For an optical modulator provided with a first sub Mach-Zehnder waveguide, a second sub Mach-Zehnder waveguide and a main Mach-Zehnder waveguide, a predetermined signal is supplied to the main Mach-Zehnder waveguide, and bias signals supplied to the first and second Mach-Zehnder waveguides are adjusted so as to lower an amplitude of an output light of the main Mach-Zehnder waveguide.
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申请公布号 |
US7245787(B2) |
申请公布日期 |
2007.07.17 |
申请号 |
US20050078695 |
申请日期 |
2005.03.14 |
申请人 |
NATIONAL INSTITUTE OF INFORMATION AND COMMUNICATIONS TECHNOLOGY, INCORPORATED ADMINISTRATIVE AGENCY |
发明人 |
KAWANISHI TETSUYA;IZUTSU MASAYUKI |
分类号 |
G02F1/01;G02F1/035;G02F1/225;G02F2/00;H04B10/155 |
主分类号 |
G02F1/01 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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