Frequency offset of a stabilized laser due to modulation distortion
- 1 July 1974
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 25 (1) , 71-73
- https://doi.org/10.1063/1.1655285
Abstract
The response of a phase‐sensitive detector is examined when its input signal is derived by modulation of a laser‐saturated absorption line shape. Neglecting the laser background power curve, it is shown that second‐harmonic distortion in the modulation gives rise to the largest laser frequency offset, 0.2% of such distortion yielding approximately 4.5 kHz frequency offset. The distortion effects are also examined when the background power curve is included.Keywords
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