发明名称 |
High resolution tunable optical filter |
摘要 |
A high-resolution tunable optical filter uses a dispersive element in a double pass configuration. The double pass configuration is provided by a reflective quarter-wave plate that conveniently reduces polarization dispersion loss (PDL) of the filter. The filter also includes a fibre tube for supporting an input optical fibre and an output optical fibre, and a lens having an optical axis, which is disposed such that a focal point thereof is substantially at one of the input and output optical fibres. To provide increase resolution the filter is tuned by rotating the reflective quarter-wave plate. To provide high power capabilities the fibre jackets of the input and output fibres are optionally stripped back. To provide a symmetrical spectral response the fibre tube is optionally mounted at an angle to the optical axis of the lens.
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申请公布号 |
US6983090(B2) |
申请公布日期 |
2006.01.03 |
申请号 |
US20030384821 |
申请日期 |
2003.03.11 |
申请人 |
JDS UNIPHASE INC. |
发明人 |
WEBER JOHN;ZHU XIANG;WOODSIDE SHANE H. |
分类号 |
G02B6/26;G01J3/28;G02B6/32;G02B6/34;G02B6/36;G02B6/38 |
主分类号 |
G02B6/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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