Abstract
Cavity enhancement provides a route to achieving the highest trace gas detection sensitivity and is typically with single wavelength sources. Coupling broadband light is more difficult, but can be done by matching frequency comb lines to the cavity modes [1]. We show here a new method for robustly matching a broadband frequency comb to a high-finesse enhancement cavity in a way that preserves the frequency comb structure while improving stability.
© 2015 IEEE
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