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Menlo Systems’ Optical Reference System (ORS): Design and Performance

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Menlo Systems’ Optical Reference System (ORS): Design and Performance

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  • Author: Dr. Maurice Lessing
The Optical Reference System (ORS) consists of a laser locked to a stable high-finesse cavity made of ultra low expansion (ULE) glass. In the ORS1500 range fiber lasers are used and in the ORS-DL range interference filter cateye design external cavity diode lasers from MOGLabs are used. The compact design allows for integration of high vacuum, temperature stabilization, vibration and acoustic isolation into a 19” system while delivering state-of-the- art laser linewidth and stability. Additionally, the system design includes a mechanical locking feature which allows for transportation of the system without the need to readjust the beam coupling into the cavity, once the mechanism is disengaged.

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