Microresonator-based high-resolution gas spectroscopy
arXiv:1707.04322 · doi:10.1364/OL.42.004442
Abstract
In recent years, microresonator-based optical frequency combs have created up opportunities for developing a spectroscopy laboratory on a chip due to its broadband emission and high comb power. However, with mode spacings typically in the range of 10 - 1000 GHz, the realization of a chip-based high-resolution spectrometer suitable for gas-phase spectroscopy has proven to be difficult. Here, we show mode-hop-free tuning of a microresonator-based frequency comb over 16 GHz by simultaneously tuning both the pump laser and the cavity resonance. We illustrate the power of this scanning technique by demonstrating gas-phase molecular fingerprinting of acetylene with a high-spectral-resolution of < 80 MHz over a 45-THz optical bandwidth in the mid-IR. Our technique represents a significant step towards on-chip gas sensing with an ultimate spectral resolution given by the comb linewidth.
References in corpus (21)
- Temporal solitons in optical microresonators
- Mid-infrared frequency combs
- Microresonator Soliton Dual-Comb Spectroscopy
- Octave-spanning frequency comb generation in a silicon nitride chip
- Silicon-Chip Mid-Infrared Frequency Comb Generation
- Thermally Controlled Comb Generation and Soliton Modelocking in Microresonators
- Octave Spanning Frequency Comb on a Chip
- Frequency-agile dual-comb spectroscopy
- Phase-stabilized, 1.5-W frequency comb at 2.8 to 4.8 micron
- Spectroscopy of the Methane ν3 Band with an Accurate Mid-Infrared Coherent Dual- Comb Spectrometer
- Mid-infrared dual-comb spectroscopy with electro-optic modulators
- Cavity Enhanced Optical Vernier Spectroscopy, Broad Band, High Resolution, High Sensitivity
- Surpassing the Path-Limited Resolution of a Fourier Transform Spectrometer with Frequency Combs
- Mid-Infrared Optical Frequency Combs based on Difference Frequency Generation for Molecular Spectroscopy
- Ultra-broadband dual-comb spectroscopy across 1.0-1.9 μm
- Soliton dual comb in crystalline microresonators
- Continuous probe of cold complex molecules with infrared frequency comb spectroscopy
- Molecular fingerprint-region spectroscopy from 5-12 μm using an orientation-patterned gallium phosphide optical parametric oscillator
- Optical Frequency Comb Fourier Transform Spectroscopy with Sub-Nominal Resolution - Principles and Implementation
- Electrical tuning and switching of an optical frequency comb generated in aluminum nitride microring resonators
- Fully Stabilized Mid-Infrared Frequency Comb for High-Precision Molecular Spectroscopy
Cited by in corpus (13)
- On-chip dual comb source for spectroscopy
- Turn-key, high-efficiency Kerr comb source
- On-chip mid-infrared and THz frequency combs for spectroscopy
- Nonlinear silicon waveguides generating broadband, spectrally engineered frequency combs spanning 2.0-8.5 um
- Synchronization of non-solitonic Kerr combs
- Machine Learning Assisted Inverse Design of Microresonators
- Micro-resonator soliton generated directly with a diode laser
- Continuous scanning of a dissipative Kerr-microresonator soliton comb for broadband, high resolution spectroscopy
- Optical Frequency Combs in Aqueous and Air Environments at Visible to Near-IR Wavelengths
- Frequency-scanned microresonator soliton comb with the tracking of the frequency of all comb modes
- Sub-nominal resolution Fourier transform spectrometry with chip-based combs
- Broadband Cavity-Enhanced Kerr Comb Spectroscopy on Chip
- Generation of a microresonator soliton comb via current modulation of a DFB laser