发明授权
- 专利标题: Multichannel light source wavelength and strength stabilizing apparatus and method thereof
- 专利标题(中): 多通道光源波长和强度稳定装置及其方法
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申请号: US09136714申请日: 1998-08-19
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公开(公告)号: US06369926B1公开(公告)日: 2002-04-09
- 发明人: Gap Youl Lyu , Hyun Jae Lee , Seo Yeon Park , Jong Hyun Lee
- 申请人: Gap Youl Lyu , Hyun Jae Lee , Seo Yeon Park , Jong Hyun Lee
- 优先权: KR97-63396 19971127
- 主分类号: H04B1004
- IPC分类号: H04B1004
摘要:
A multichannel light source wavelength and strength stabilizing apparatus and a method thereof are disclosed. The apparatus includes a first proportional/integrator for receiving an output signal from the error detector, detecting a value proportional thereto, integrating the detected proportional value, generating a signal corresponding to the optimum feedback circuit, and outputting to the temperature controller; a current controller for providing the current capable of controlling the light strength in accordance with the signal inputted to the light source and stabilizing the light strength; a second optical coupling unit for dividing the output signal from the first optical coupling unit; a photodetector for converting the strength of a light among the output signals from the second optical coupling unit into an electrical signal; and a second proportional/integration unit for detecting a proportional value of the output signal from the optical detector, integrating the detected proportional value, generating a signal corresponding to the optimum feedback circuit, and outputting to the current controller.
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