This article is cited in 13 papers

Laser spectroscopy

Compact ultrastable laser system for spectroscopy of ²S_1/2 → ²D_3/2 quadrupole transition in ¹⁷¹Yb⁺ ion

I. V. Zalivako^a, I. A. Semerikov^a, A. S. Borisenko^a, M. D. Aksenov^a, P. A. Vishnyakov^a, P. L. Sidorov^a, N. V. Semenin^b, A. A. Golovizin^a, K. Yu. Khabarova^ac, N. N. Kolachevsky<sup>ac

a</sup> P. N. Lebedev Physical Institute of the Russian Academy of Sciences, Moscow
^b Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
^c International Center for Quantum Optics and Quantum Technologies (the Russian Quantum Center), Moscow, Skolkovo

Abstract: We report the results of studying a compact laser system designed for manipulating a quantum state of the optical qubit based on the ²S_1/2 → ²D_3/2 quadrupole transition in the ¹⁷¹Yb⁺ ion at a wavelength of 435.5 nm. An emission power of the laser system reaches 500 mW at λ = 435.5 nm and the relative frequency instability of at most 3 × 10^-15 is achieved at averaging intervals from 0.5 to 50 s with a subtracted linear frequency drift. The compactness of the developed system makes it possible to employ it in transportable systems including optical clocks.

Keywords: laser spectroscopy, optical qubit, quadrupole transition, ¹⁷¹Yb⁺ ion.

Received: 26.05.2020

 English version: Quantum Electronics, 2020, 50:9, 850–854

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