1 February 2008 Mode referencing of an external cavity diode laser for continuous frequency stabilization
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Abstract
The output of an external cavity diode laser (ECDL) is frequency stabilized to a water (H2O) vapor absorption line at 935 nm using wavelength modulation spectroscopy (WMS) by means of a dual-feedback locking loop. A novel mode-referencing technique is presented that, in conjunction with the feedback locking mechanism, helps improve the overall frequency-locking system. The mode-referencing enables the device output to maintain its locked frequency in the presence of environmental and other effects, which may cause the operational characteristics of the laser to drift.
© (2008) Society of Photo-Optical Instrumentation Engineers (SPIE)
David McInerney, David McInerney, Michael Lynch, Michael Lynch, John F. Donegan, John F. Donegan, Vincent Weldon, Vincent Weldon, } "Mode referencing of an external cavity diode laser for continuous frequency stabilization," Optical Engineering 47(2), 024301 (1 February 2008). https://doi.org/10.1117/1.2844700 . Submission:
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