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NIST Authors in Bold
|Author(s):||Kevin O. Knabe; Paul A. Williams; Fabrizio R. Giorgetta; Chris Armacost; Michael Radunsky; Nathan R. Newbury;|
|Title:||Frequency characterization of a swept and fixed-wavelength external-cavity quantum cascade laser by use of a frequency comb|
|Published:||May 21, 2012|
|Abstract:||The instantaneous optical frequency of an external-cavity quantum cascade laser (QCL) is characterized by comparison to a near-infrared frequency comb. Fluctuations in the instantaneous optical frequency are analyzed to determine the frequency noise power spectral density for the external-cavity QCL both during fixed wavelength operation and swept wavelength operation. This same combination of external-cavity QCL and comb can be applied to rapid, precise broadband spectroscopy.|
|Pages:||pp. 12432 - 12442|
|Keywords:||continuous wave, cw, fiber comb, frequency comb, laser characterization, metrology, mid-infrared, mid-IR, QCL, quantum cascade laser spectroscopy|
|Research Areas:||Laser Physics, Time and Frequency, Industry, Spectrally Tunable Sources|