Fourier transform spectroscopy around 3 microns with a broad difference frequency comb

Abstract

We characterize a new mid-infrared frequency comb generator based on difference frequency generation around 3.2 microns. High power per comb mode (>10-7 W/mode) is obtained over a broad spectral span (>700 nm). The source is used for direct absorption spectroscopy with a Michelson-based Fourier transform interferometer.

6 pages, 5 figures

References in corpus (7)

• Mid-infrared frequency combs
• Coherent, multi-heterodyne spectroscopy using stabilized optical frequency combs
• Coherent Raman spectro-imaging with laser frequency combs
• Mid-infrared VIPA Spectrometer for Rapid and Broadband Trace Gas Detection
• Sensitive multiplex spectroscopy in the molecular fingerprint 2.4 $\mu$m region with a Cr^{2+}:ZnSe femtosecond laser
• Adaptive dual-comb spectroscopy in the green region
• Raman-induced Kerr-effect dual-comb spectroscopy

Cited by in corpus (10)

• Frequency comb spectroscopy
• Mid-Infrared Optical Frequency Combs based on Difference Frequency Generation for Molecular Spectroscopy
• Mid-infrared feed-forward dual-comb spectroscopy at 3 $\mu$m
• Optical frequency comb spectroscopy at 3-5.4 μm with a doubly resonant optical parametric oscillator
• High-power frequency comb source tunable from 2.7 to 4.2 μm based on difference frequency generation pumped by an Yb-doped fiber laser
• High-resolution and gapless dual comb spectroscopy with current-tuned quantum cascade lasers
• High-speed Fourier-transform infrared spectroscopy with phase-controlled delay line
• Mid-infrared continuous-filtering Vernier spectroscopy using a doubly resonant optical parametric oscillator
• Massively parallel dual-comb molecular detection with subharmonic optical parametric oscillators
• Two-octave-wide (3-12 μm) mid-infrared frequency comb produced as an optical subharmonic in a nondispersive cavity