Laser frequency stabilization: combined integrating thermal-proportional servos
Journal Article
·
· Appl. Opt.; (United States)
Many cw laser frequency stabilization schemes require the piezoelectric servo control of the length of an optical resonator. A problem that must be dealt with in the construction of any such servo is the design of a system that has both the dynamic range to correct long term drifts and the frequency response to control short term fluctuations. A simple, inexpensive addition is described that eliminates the need for both long-term cavity stability and wide PZT dynamic range in any proportional length control system. The method is to add to the proportional piezoelectric loop an integrating servo loop, which thermally controls cavity length. (MHR)
- Research Organization:
- Harvard Univ., Cambridge, MA
- OSTI ID:
- 7346449
- Journal Information:
- Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 15:6; ISSN APOPA
- Country of Publication:
- United States
- Language:
- English
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