An integrated lithium-niobate electro-optic platform for spectrally tailored dual-comb spectroscopy
arXiv:2003.04533 · doi:10.1038/s42005-022-00865-8
Abstract
A high-resolution broad-spectral-bandwidth spectrometer on a chip would create new opportunities for gas-phase molecular fingerprinting, especially in environmental sensing. A resolution high enough to observe transitions at atmospheric pressure and the simultaneous sensitive detection of multiple atoms or molecules are the key challenges. Here, an electro-optic microring-based dual-comb interferometer, fabricated on a low-loss lithium-niobate-on-insulator nanophotonic platform, demonstrates significant progress towards such an achievement. Spectra spanning 1.6 THz (53 cm-1) at a resolution of 10 GHz (0.33 cm-1) are obtained in a single measurement without requiring frequency scanning or moving parts. The frequency agility of the system enables spectrally-tailored multiplexed sensing, which allows for interrogation of non-adjacent spectral regions, here separated by 6.6 THz (220 cm-1), without compromising the signal-to-noise ratio.
References in corpus (11)
- Frequency comb spectroscopy
- Microresonator Soliton Dual-Comb Spectroscopy
- Monolithic Ultrahigh-Q Lithium Niobate Microring Resonator
- Integrated turnkey soliton microcombs operated at CMOS frequencies
- Ultra-low loss integrated visible photonics using thin-film lithium niobate
- Wavelength-scale stationary-wave integrated Fourier-transform spectrometry
- Wafer-scale low-loss lithium niobate photonic integrated circuits
- An integrated low-voltage broadband lithium niobate phase modulator
- High-dimensional frequency crystals and quantum walks in electro-optic microcombs
- On-chip mid-infrared and THz frequency combs for spectroscopy
- Broadband Ultrahigh-Resolution chip-scale Scanning Soliton Dual-Comb Spectroscopy
Cited by in corpus (12)
- Integrated Electro-Optic Isolator on Thin Film Lithium Niobate
- High-efficiency and broadband electro-optic frequency combs enabled by coupled micro-resonators
- Sub-1 Volt and High-Bandwidth Visible to Near-Infrared Electro-Optic Modulators
- A power-efficient integrated lithium niobate electro-optic comb generator
- Entanglement-enhanced dual-comb spectroscopy
- Spectral engineering of optical microresonators in anisotropic lithium niobate crystal
- Low-power, agile electro-optic frequency comb spectrometer for integrated sensors
- An ultra-stable microresonator-based electro-optic dual frequency comb
- Scalable Miniature On-chip Fourier Transform Spectrometer For Raman Spectroscopy
- Dual electro-optic frequency comb photonic thermometry
- Rhythmic soliton interactions for integrated dual-microcomb spectroscopy
- Investigation of nanophotonic lithium niobate waveguides for on-chip evanescent wave sensing