Length control of an optical resonator using second-order transverse modes
We present the analysis of an unorthodox technique for locking a laser to a resonant optical cavity. Error signals are derived from the interference between the fundamental cavity mode and higher-order spatial modes of order two excited by mode mismatch. This scheme is simple, inexpensive, and, in c...
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| Format: | Article |
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The Optical Society
2019
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| Online Access: | https://hdl.handle.net/1721.1/121215 |