QCL frequency stabilization and measurement with 100 Hz - level linewidth, drift and inaccuracy, using a robust upconversion technique

M. Hansen; E. Magoulakis; Q.-F. Chen; I. Ernsting; S. Schiller

2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference
(Optica Publishing Group, 2015),
paper ED_2_4

QCL frequency stabilization and measurement with 100 Hz - level linewidth, drift and inaccuracy, using a robust upconversion technique

M. Hansen, E. Magoulakis, Q.-F. Chen, I. Ernsting, and S. Schiller

European Quantum Electronics Conference 2015

Munich Germany
21–25 June 2015
ISBN: 978-1-4673-7475-0

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Combs and Precision Measurement (ED_2)

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M. Hansen, E. Magoulakis, Q. -. Chen, I. Ernsting, and S. Schiller, "QCL frequency stabilization and measurement with 100 Hz - level linewidth, drift and inaccuracy, using a robust upconversion technique," in 2015 European Conference on Lasers and Electro-Optics - European Quantum Electronics Conference, (Optica Publishing Group, 2015), paper ED_2_4.

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Abstract

The mid-infrared (MIR) spectral range (λ > 4.5 µm) is of interest in both applied and fundamental spectroscopy, for diverse applications such as trace gas detection and molecular frequency metrology. Approaches currently pursued for enabling MIR spectroscopy with accurate frequency control are based on generating the desired radiation by down-conversion, either of frequency combs or of cw near-infrared (NIR) sources. Such downconverted sources, however, typically have low power per frequency interval.

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