High Coherence Mid-Infrared Dual Comb Spectroscopy Spanning 2.6 to 5.2 microns

Abstract

Mid-infrared dual-comb spectroscopy has the potential to supplant conventional high-resolution Fourier transform spectroscopy in applications that require high resolution, accuracy, signal-to-noise ratio, and speed. Until now, dual-comb spectroscopy in the mid-infrared has been limited to narrow optical bandwidths or to low signal-to-noise ratios. Using a combination of digital signal processing and broadband frequency conversion in waveguides, we demonstrate a mid-infrared dual-comb spectrometer that can measure comb-tooth resolved spectra across an octave of bandwidth in the mid-infrared from 2.6-5.2 $\mu$m with sub-MHz frequency precision and accuracy and with a spectral signal-to-noise ratio as high as 6500. As a demonstration, we measure the highly structured, broadband cross-section of propane (C3H8) in the 2860-3020 cm-1 region, the complex phase/amplitude spectrum of carbonyl sulfide (COS) in the 2000 to 2100 cm-1 region, and the complex spectra of methane, acetylene, and ethane in the 2860-3400 cm-1 region.

References in corpus (1)

• Accurate frequency referencing for fieldable dual-comb spectroscopy

Cited by in corpus (46)

• Frequency comb spectroscopy
• 20 years of developments in optical frequency comb technology and applications
• Upconversion time-stretch infrared spectroscopy
• Nonlinear interferometer for Fourier-transform mid-infrared gas spectroscopy using near-infrared detection
• Nanophotonic supercontinuum based mid-infrared dual-comb spectroscopy
• Swept-wavelength mid-infrared fiber laser for real-time ammonia gas sensing
• Mid-infrared feed-forward dual-comb spectroscopy at 3 $\mu$m
• QCL-based frequency metrology from the mid-infrared to the THz range: a review
• ${\chi }^{(2)}$ mid-infrared frequency comb generation and stabilization with few-cycle pulses
• High-resolution and gapless dual comb spectroscopy with current-tuned quantum cascade lasers
• Photo-acoustic dual-frequency comb spectroscopy
• Time-resolved mid-infrared dual-comb spectroscopy
• Near-ultraviolet photon-counting dual-comb spectroscopy
• Dual-comb spectroscopy for high-temperature reaction kinetics
• Nonlinear silicon waveguides generating broadband, spectrally engineered frequency combs spanning 2.0-8.5 um
• Coherently averaged dual-comb spectroscopy with a low-noise and high-power free-running gigahertz dual-comb laser
• High-speed mid-infrared single-photon upconversion spectrometer
• Fully phase-stabilized 1 GHz turnkey frequency comb at 1.56 $\mu$m
• Mid-infrared frequency combs at 10 GHz
• Phase-controlled Fourier-transform spectroscopy
• Single-photon interferometry and spectroscopy with two laser frequency combs
• 1 GHz dual-comb spectrometer for fast and broadband measurements
• Mid-Infrared Cross-Comb Spectroscopy
• High-speed Fourier-transform infrared spectroscopy with phase-controlled delay line
• Dual-Comb Real-Time Molecular Fingerprint Imaging
• Timing jitter characterization of free-running dual-comb laser with sub-attosecond resolution using optical heterodyne detection
• Entanglement-enhanced dual-comb spectroscopy
• Data availability and requirements relevant for the Ariel space mission and other exoplanet atmosphere applications
• Comb-resolved spectroscopy with immersion grating in long-wave infrared
• Dual-comb spectroscopy with tailored spectral broadening in Si${}_3$N${}_4$ nanophotonics
• Tunable dual-comb spectrometer for mid-infrared trace gas analysis from 3 to 4.7 μm
• Broadband calibration-free cavity-enhanced complex refractive index spectroscopy using a frequency comb
• Simple method for mid-infrared optical frequency comb generation with dynamic offset frequency tuning
• Compact mode-locked Er-doped fiber laser for broadband cavity-enhanced spectroscopy
• Quasi-real-time dual-comb spectroscopy with 750-MHz Yb:fiber combs
• Femtosecond imbalanced time-stretch spectroscopy for ultrafast gas detection
• An ultra-stable microresonator-based electro-optic dual frequency comb
• Widely tunable mid-infrared fiber-feedback optical parametric oscillator
• An alkali-referenced vector spectrum analyzer for visible-light integrated photonics
• Line-shape study of CO perturbed by N${}_2$ with mid-infrared frequency comb-based Fourier-transform spectroscopy
• High-Resolution Spectroscopy in the 11.6-15 μm Range by a Quasi-cw Difference-Frequency-Generation Laser Source
• Rhythmic soliton interactions for integrated dual-microcomb spectroscopy
• Streaming Self-Corrected Dual-Comb Spectrometer
• Near-infrared dual-comb spectroscopy of CO2 and N2O with a discretized highly nonlinear fiber
• Versatile optical frequency combs based on multi-seeded femtosecond optical parametric generation
• Phase-coherent asynchronous optical sampling system