Frequency-comb-assisted broadband precision spectroscopy with cascaded diode lasers

Frequency-comb-assisted diode laser spectroscopy, employing both the accuracy of an optical frequency comb and the broad wavelength tuning range of a tunable diode laser, has been widely used in many applications. In this Letter, we present a novel method using cascaded frequency agile diode lasers, which allows us to extend the measurement bandwidth to 37.4 THz (1355-1630 nm) at megahertz resolution with scanning speeds above 1 THz/s. It is demonstrated as a useful tool to characterize a broadband spectrum for molecular spectroscopy, and in particular it enables us to characterize the dispersion of integrated microresonators up to the 4th-order. (C) 2016 Optical Society of America


Published in:
Optics Letters, 41, 13, 3134
Year:
2016
Publisher:
Washington, Optical Society of America
ISSN:
1539-4794
Laboratories:




 Record created 2016-07-01, last modified 2018-01-28


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