M. I. Shakirov, K. S. Kudeyarov, N. O. Zhadnov, D. S. Kryuchkov, A. V. Tausenev, K. Yu. Khabarova, N. N. Kolachevsky, “Compact laser system for frequency stability dissemination in metrology and quantum computing applications”, Kvantovaya Elektronika, 2025, Volume 55, Number 3,Pages <nobr>175

Quantum Technologies

Compact laser system for frequency stability dissemination in metrology and quantum computing applications

M. I. Shakirov^a, K. S. Kudeyarov^a, N. O. Zhadnov^a, D. S. Kryuchkov^a, A. V. Tausenev^a, K. Yu. Khabarova^a, N. N. Kolachevsky^ab

^a P. N. Lebedev Physical Institute, Russian Academy of Sciences, Moscow
^b Russian Quantum Center, Skolkovo, Moscow

Abstract: A scheme for transferring frequency stability from an ultrastable laser at a wavelength of 871 nm to a laser at a wavelength of 1550 nm has been implemented. The results of comparing the laser frequency at a wavelength of 1550 nm with the frequencies of two reference lasers showed that the developed system ensures a relative frequency instability less than 4 × 10^-15 for intervals from 0.4 to 2 s and less than 10^-14 for averaging intervals from 0.2 to 500 s. A femtosecond optical frequency comb and a laser with a reference cavity are designed to meet the requirements of compactness and portability for use in field and onboard applications.

Keywords: compact ultrastable laser, ECDL, frequency stability dissemination, quantum metrology.

Received: 23.04.2025
Revised: 13.05.2025
Accepted: 14.05.2025