1. Temperature-insensitive laser frequency locking near absorption lines.
- Author
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Kostinski, Natalie, Olsen, Ben A., Marsland, Robert, McGuyer, Bart H., and Happer, William
- Subjects
MAGNETIC circular dichroism ,FARADAY effect ,ULTRASHORT laser pulses ,ABSORPTION spectra ,ATOMS ,VAPORS ,TEMPERATURE - Abstract
Combined magnetically induced circular dichroism and Faraday rotation of an atomic vapor are used to develop a variant of the dichroic atomic vapor laser lock that eliminates lock sensitivity to temperature fluctuations of the cell. Operating conditions that eliminate first-order sensitivity to temperature fluctuations can be determined by low-frequency temperature modulation. This temperature-insensitive gyrotropic laser lock can be accurately understood with a simple model, that is in excellent agreement with observations in potassium vapor at laser frequencies in a 2 GHz range about the 770.1 nm absorption line. The methods can be readily adapted for other absorption lines. [ABSTRACT FROM AUTHOR]
- Published
- 2011
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