发明授权
- 专利标题: Optical phase modulation element and optical modulator using the same
- 专利标题(中): 光相位调制元件和使用其的光调制器
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申请号: US12526107申请日: 2007-12-25
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公开(公告)号: US08116600B2公开(公告)日: 2012-02-14
- 发明人: Daisuke Okamoto , Masafumi Nakada , Junichi Fujikata
- 申请人: Daisuke Okamoto , Masafumi Nakada , Junichi Fujikata
- 申请人地址: JP Tokyo
- 专利权人: NEC Corporation
- 当前专利权人: NEC Corporation
- 当前专利权人地址: JP Tokyo
- 优先权: JP2007-037935 20070219
- 国际申请: PCT/JP2007/074813 WO 20071225
- 国际公布: WO2008/102511 WO 20080828
- 主分类号: G02F1/01
- IPC分类号: G02F1/01 ; G02F1/035
摘要:
Provided is a small-size optical phase modulation element and an optical modulator using it. The optical phase modulation element includes a Plasmon waveguide having a clad made of a metal material having a complex dielectric constant having a negative real part in the used wavelength and a core formed by a dielectric metal material having a complex dielectric constant having a positive real part in the used wavelength. The Plasmon waveguide is connected to an optical waveguide including a clad and a core both having a complex dielectric constant having a positive real part. The core of the Plasmon waveguide and the core of the optical waveguide are formed, at least partially, of the same semiconductor material. The Plasmon waveguide has a function to phase-modulate the incident light when voltage is applied.