Absolute frequencies of H13C14N hydrogen cyanide transitions in the 1.5-µm region with the saturated spectroscopy and a sub-kHz scanning laser

Author:

Hrabina Jan1ORCID,Hosek Martin1ORCID,Rerucha Simon1ORCID,Cizek Martin1ORCID,Pilat Zdenek1,Zucco Massimo2,Lazar Josef1,Cip Ondrej1ORCID

Affiliation:

1. Institute of Scientific Instruments of the CAS (ISI)

2. INRIM Istituto Nazionale di Ricerca Metrologica

Abstract

The wide span and high density of lines in its rovibrational spectrum render hydrogen cyanide a useful spectroscopic media for referencing absolute frequencies of lasers in optical communication and dimensional metrology. We determined, for the first time to the best of our knowledge, the molecular transitions’ center frequencies of the H13C14N isotope in the range from 1526 nm to 1566 nm with 1.3 × 10−10 fractional uncertainty. We investigated the molecular transitions with a highly coherent and widely tunable scanning laser that was precisely referenced to a hydrogen maser through an optical frequency comb. We demonstrated an approach to stabilize the operational conditions needed to maintain the constantly low pressure of the hydrogen cyanide to carry out the saturated spectroscopy with the third-harmonic synchronous demodulation. We demonstrated approximately a forty-fold improvement in the line centers’ resolution compared to the previous result.

Funder

European Metrology Programme for Innovation and Research

Ministerstvo Školství, Mládeže a Tělovýchovy

Akademie Věd České Republiky

Publisher

Optica Publishing Group

Subject

Atomic and Molecular Physics, and Optics

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

1. Saturation Spectroscopy of H13C14N Absorption Lines;2023 Joint Conference of the European Frequency and Time Forum and IEEE International Frequency Control Symposium (EFTF/IFCS);2023-05-15

2. High-precision measurement of the center frequencies of the hydrogen cyanide (HCN) hyperfine transitions in the 1.5 μm wavelength band;22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics;2022-12-13

3. Free space optical link phase noise measurement;22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics;2022-12-13

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