发明授权
US07245787B2 Bias adjustment method for optical SSB modulator or optical FSK modulator
有权
光学SSB调制器或光学FSK调制器的偏置调整方法
- 专利标题： Bias adjustment method for optical SSB modulator or optical FSK modulator
- 专利标题（中）： 光学SSB调制器或光学FSK调制器的偏置调整方法
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申请号： US11078695申请日： 2005-03-14
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公开(公告)号： US07245787B2公开(公告)日： 2007-07-17
- 发明人: Tetsuya Kawanishi , Masayuki Izutsu
- 申请人： Tetsuya Kawanishi , Masayuki Izutsu
- 申请人地址： JP Tokyo
- 专利权人： National Institute of Information and Communications Technology, Incorporated Administrative Agency
- 当前专利权人： National Institute of Information and Communications Technology, Incorporated Administrative Agency
- 当前专利权人地址： JP Tokyo
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP.
- 优先权： JP2004-074639 20040316
- 主分类号： G02F1/01
- IPC分类号： G02F1/01 ; G02F1/225
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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