| CPC G01J 3/4338 (2013.01) [G01J 3/0205 (2013.01)] | 20 Claims |
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1. A spectroscopy system, comprising:
a first vapor cell configured to receive as an input an unmodulated reference optical signal; and
a second vapor cell configured to receive as an input a modulated pump optical signal; and
a control system configured to:
detect optical signals resulting from the unmodulated reference optical signal and the modulated pump optical signal passing through the first and second vapor cells,
generate a laser adjustment signal for adjusting a wavelength or frequency of a first optical source, wherein an output of the first optical source is used to generate the modulated pump optical signal, and
reduce, using the unmodulated reference optical signal output from the first vapor cell, a noise floor associated with a spectroscopy signal.
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