发明授权
US5430817A Optical systems and devices using long period spectral shaping devices
失效
使用长周期光谱整形装置的光学系统和器件
- 专利标题： Optical systems and devices using long period spectral shaping devices
- 专利标题（中）： 使用长周期光谱整形装置的光学系统和器件
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申请号： US220866申请日： 1994-03-31
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公开(公告)号： US5430817A公开(公告)日： 1995-07-04
- 发明人: Ashish M. Vengsarkar
- 申请人： Ashish M. Vengsarkar
- 申请人地址： NJ Murray Hill
- 专利权人： AT&T Corp.
- 当前专利权人： AT&T Corp.
- 当前专利权人地址： NJ Murray Hill
- 主分类号： G02B6/00
- IPC分类号： G02B6/00 ; G02B6/02 ; G02F1/35 ; H01S3/067 ; H04B10/02 ; H04B10/17 ; H04B10/18 ; H04B10/28 ; G02B6/34
摘要：
In accordance with the present invention, optical fiber communications systems are provided with one or more long period spectral shaping devices to shift light of unwanted wavelength from guided modes into non-guided modes. Such devices can be used for removing unused laser pump energy, for removing amplified spontaneous emission, and for flattening the spectral response of an erbium amplifier. Such devices can also provide optical fiber sensing systems with inexpensive shift detectors.
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