发明名称 |
Optical sensor having a non-negligible source coherence length |
摘要 |
An optical sensor, a method of configuring an optical sensor, and a method of using an optical sensor are provided. The optical sensor includes an optical loop having a length and a laser source optically coupled to the loop. The laser source has a coherence length. Light from the source is transmitted to the loop as a first signal and a second signal counterpropagating along the loop. The optical paths of the first signal and the second signal are substantially reciprocal with one another and the first signal and the second signal are combined together after counterpropagating through the loop to generate a third signal. A ratio of the coherence length to the length of the loop is greater than 1. |
申请公布号 |
US8681339(B2) |
申请公布日期 |
2014.03.25 |
申请号 |
US201313850222 |
申请日期 |
2013.03.25 |
申请人 |
THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY |
发明人 |
DIGONNET MICHAEL J. F.;FAN SHANHUI;LLOYD SETH |
分类号 |
G01C19/72 |
主分类号 |
G01C19/72 |
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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