发明名称 |
Tunable optical filter, optical apparatus for use therewith and method utilizing same |
摘要 |
An apparatus for filtering an input beam of light to produce an output beam of light is provided. The apparatus facilitates tuning an input beam of light to a desired wavelength by directing the input beam of light, via a mirror, onto a diffractive optical element and returning the diffracted portion of the input beam of light as an output beam of light. The apparatus may also include a polarization recovery element adapted for receiving the input beam of light and outputting a first and second spatially offset beam of polarized light. The apparatus may also be configured as a tunable receiver by utilizing a detector to detect a characteristic of a filtered output beam. The output beam may be additionally filtered by a spatial filter.
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申请公布号 |
US7221452(B2) |
申请公布日期 |
2007.05.22 |
申请号 |
US20030638061 |
申请日期 |
2003.08.07 |
申请人 |
COHERENT, INC. |
发明人 |
BERGER JILL D.;ANTHON DOUGLAS W.;ILKOV FEDOR A.;KING DAVID A. |
分类号 |
G01J3/28;G01J3/12;G01J3/18 |
主分类号 |
G01J3/28 |
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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