Narrow-line phase-locked quantum cascade laser in the 9.2 microm range.
We report the operation of a 50 mW continuous-wave quantum cascade laser (QCL) in the 9.2 microm range, phase locked to a single-mode CO(2) laser with a tunable frequency offset. The wide free-running emission spectrum of the QCL (3-5 MHz) is strongly narrowed down to the kilohertz range, making it suitable for high-resolution molecular spectroscopy.
Bielsa
Franck
F
Laboratoire Kastler Brossel, Evry, UPMC, CNRS, ENS, Paris, France.
Douillet
Albane
A
Valenzuela
Tristan
T
Karr
Jean-Philippe
JP
Hilico
Laurent
L