Mid-infrared laser phase-locking to a remote near-infrared frequency reference for high precision molecular spectroscopy

Abstract

We present a new method for accurate mid-infrared frequency measurements and stabilization to a near-infrared ultra-stable frequency reference, transmitted with a long-distance fibre link and continuously monitored against state-of-the-art atomic fountain clocks. As a first application, we measure the frequency of an OsO4 rovibrational molecular line around 10 $\mu$m with a state-of-the-art uncertainty of 8x10-13. We also demonstrate the frequency stabilization of a mid-infrared laser with fractional stability better than 4x10-14 at 1 s averaging time and a line-width below 17 Hz. This new stabilization scheme gives us the ability to transfer frequency stability in the range of 10-15 or even better, currently accessible in the near-infrared or in the visible, to mid-infrared lasers in a wide frequency range.

References in corpus (6)

• Progress in Atomic Fountains at LNE-SYRTE
• Stability of the proton-to-electron mass ratio
• Using Molecules to Measure Nuclear Spin-Dependent Parity Violation
• Long-distance frequency transfer over an urban fiber link using optical phase stabilization
• Progress toward a first observation of parity violation in chiral molecules by high-resolution laser spectroscopy
• HCOOH high resolution spectroscopy in the 9.18$\mu$m region

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• A widely tunable 10-$\mu$m quantum cascade laser phase-locked to a state-of-the-art mid-infrared reference for precision molecular spectroscopy
• Towards detection of the molecular parity violation in chiral Ru(acac)${}_3$ and Os(acac)${}_3$
• Quantum cascade laser-pumped terahertz molecular lasers: frequency noise and phase-locking using a 1560nm frequency comb
• Ultra-stable optical frequency dissemination on a multi-access fibre network
• Toward a large bandwidth photonic correlator for infrared heterodyne interferometry
• An oxorhenium complex bearing a chiral cyclohexane-1-olato-2-thiolato ligand: synthesis, stereochemistry and theoretical study of parity violation vibrational frequency shifts
• Parity violation effects in helical osmocene: theoretical analysis and experimental prospects
• Chiral Pt(Me-BPCH): Synthesis and theoretical investigation of parity violation sensitivity