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5 September 2002 Frequency stabilization of DBR laser diode to cesium D2 line by the third-order deviation locking without dither
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Abstract
The third-derivative saturation absorption spectrum (SAS) of cesium D2 line is demonstrated via the third-harmonic technique by applying the frequency modulation to an external AOM (acousto-optical modulator). By employing the frequency discrimination of the third-derivative SAS, frequency of DBR diode laser at 852nm is locked to the hyperfine component of cesium 6S1/2F = 4 ? 6P3/2F' = 4,5 . Frequency jitter of less than in 10 seconds is estimated based on the error signal after locking in the preliminary stabilization.
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Tao Liu, Junmin Wang, Hongxiang Lei, Shubin Yan, Liping Li, and Tiancai Zhang "Frequency stabilization of DBR laser diode to cesium D2 line by the third-order deviation locking without dither", Proc. SPIE 4913, Semiconductor Lasers and Applications, (5 September 2002); https://doi.org/10.1117/12.482225
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