发明授权
- 专利标题： Wavelength monitoring device and its adjusting method, and wavelength stabilizing light source and transmission system having plural wavelength stabilizing light source
- 专利标题（中）： 波长监视装置及其调节方法，以及具有多个波长稳定光源的波长稳定光源和传输系统
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申请号： US09617089申请日： 2000-07-14
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公开(公告)号： US06567437B1公开(公告)日： 2003-05-20
- 发明人: Masao Imaki , Yoshihito Hirano , Makoto Satou , Kenji Masuda , Takeshi Nakamura
- 申请人： Masao Imaki , Yoshihito Hirano , Makoto Satou , Kenji Masuda , Takeshi Nakamura
- 优先权： JP2000-022537 20000131
- 主分类号： H01S313
- IPC分类号： H01S313
摘要：
A wavelength monitoring device comprising: a polarization state changing means having a first birefringent crystal, which inputs a polarized laser light and changes the polarization state of the input laser light after it is transmitted through the first birefringent crystal, in accordance with the wavelength of the input laser light, a polarized light selecting and receiving means, which inputs the laser light transmitted through the polarization state changing means and selectively receives a predetermined linearly polarized component, and a wavelength detection means for monitoring the wavelength of the laser light input to the first birefringent crystal by use of an optical signal output from the polarized light selecting and receiving means.
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