Simultaneous frequency locking of 1535 and 1562 nm lasers to a single Fabry–Pérot cavity

Applied Optics 2026

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Authors: Xilun Gao, Lin Leilei, Cai Fengfan, Peipei Jiang, Yonghang Shen
DOI: 10.1364/ao.583408
Cited by: 0
References: 35

Abstract

We report the simultaneous frequency locking of two single frequency lasers around 1535 and 1562 nm to a single ultra-stable Fabry–Pérot cavity, respectively. Frequency stabilities up to 398 and 391 kHz are achieved for the lasers, respectively, through the Pound–Drever–Hall locking technique, producing a large synthesized frequency around 3.395 THz with high relative frequency stability of 5.8×10 −8 . Interferometric tests demonstrate that the phase fluctuation suppression is also realized for the lasers by two orders of magnitude. The results are especially beneficial for multi-wavelength interferometric measurement.

Fields of Study & Subjects

Advanced Fiber Laser Technologies Advanced Frequency and Time Standards Spectroscopy and Laser Applications

Publication details

Journal / source
Applied Optics
Volume
65
Issue
4
Pages
1300–1300
Publication date
2 January 2026
Language
EN