Phase measurement device of beam splitter
Patent Information
- Authority / Receiving Office
- CN Β· China
- Current Assignee / Owner
- SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
- Publication Date
- 2010-01-27
- Estimated Expiration
- Not applicable Β· inactive patent
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Abstract
Description
technical field
[0001] The invention relates to the phase measurement of light waves, specifically measuring the phase relationship between two orthogonal components of the transmitted light and reflected light after the light wave passes through a beam splitting device, including a vertical component (s component) and a parallel component (p component). Background technique
[0002] In many optical systems, it is often necessary to use a beam splitter to split a beam of light into two beams of light. The commonly used beam splitters include beam splitters, beam splitters, and beam splitter prisms, which are widely used optical components. For this kind of beam splitting device, almost all devices only measure the splitting ratio, that is, the light intensity energy ratio of the two split beams, and do not measure the phase change relationship of the beam after passing through the splitting device, but in some applications , such as spatial coherent detection, laser radar, e...