High‐Precision Laser Spectrum Analyzer via Digital Decoherence (Laser Photonics Rev. 20(1)/2026)

Laser & Photonics Review 2026 Open access

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Authors: Zhongwang Pang, Chunyi Li, Hongfei Dai, Wenlin Li, Dongqi Song, Fei Meng, Yige Lin, Bo Wang
DOI: 10.1002/lpor.70753
Cited by: 1

Abstract

Digital Decoherence for Sub-Hertz Laser Analyzer In Research Article e01773, Bo Wang and co-workers propose the concept of digital decoherence. This allows the decoherence process to be realized through a digital delay. Based on this method, a laser spectrum analyzer is achieved for accurate frequency-noise power spectral density measurements of sub-Hertz linewidth lasers. This advance benefits quantum metrology, especially optical clocks.

Fields of Study & Subjects

Optical Network Technologies Neural Networks and Reservoir Computing Advanced Photonic Communication Systems

Publication details

Journal / source
Laser & Photonics Review
Publisher
Wiley
Volume
20
Issue
1
Publication date
1 January 2026
Language
EN