Power stabilization method of a diode laser for compact vapor cell frequency standards

Optics Continuum 2026 Open access

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Authors: Jaeuk Baek, Soyeon Choi, Seji Kang, Sang Hyun Park, Minah Seo, Taeg Yong Kwon, Sang-Bum Lee, Jae Hoon Lee, Youngho Park, Sangwon Seo, Hyun-Gue Hong
DOI: 10.1364/optcon.585779
Cited by: 1
References: 20

Abstract

We present a compact and power-efficient method for stabilizing the output power of a diode laser by leveraging its integrated temperature control. We demonstrate that this approach is highly effective in mitigating slow power drift. In particular, we verify that the power stabilization loop introduces negligible perturbation to the frequency stability and is even beneficial for an optimized gain. We confirm the practical benefit of this technique by applying it to an Rb vapor cell atomic clock, showing a measurable improvement in the clock’s long-term frequency stability by mitigating the instability induced by the light shift. This method offers a solution for miniaturized quantum sensors requiring stable, continuous-wave interrogation.

Fields of Study & Subjects

Atomic and Subatomic Physics Research Advanced Frequency and Time Standards Cold Atom Physics and Bose-Einstein Condensates

Publication details

Journal / source
Optics Continuum
Publisher
Optica Publishing Group
Volume
5
Issue
2
Pages
603–603
Publication date
22 January 2026
Language
EN