Enhancing stimulated Raman spectroscopy using Kerr squeezing

Optical and Quantum Sensing and Precision Metrology II 2026

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Authors: Nikolay A. Kalinin, Kilian Scheffter, Hannah Gallop, Hanieh Fattahi, Mehdi Alizadeh, Adrian F. Pegoraro, Albert Stolow, Luis Lorenzo Sánchez-Soto, A. Andrianov, Gerd Leuchs
DOI: 10.1117/12.3089893
Cited by: 0

Abstract

In many state-of-the-art stimulated Raman spectroscopy (SRS) experiments, shot noise is the dominating noise source. We apply polarization-squeezed light generated in a silica fiber via the Kerr effect for SRS. The non-classical state of light allows for lowering the noise power below the shot noise limit, which enhances the signal-to-noise ratio (SNR). In our experiment, we achieved 3.0 dB SNR improvement when compared to coherent state SRS. We additionally investigate spectral focusing of squeezed pulses to improve SRS resolution without loss in SNR.

Fields of Study & Subjects

Laser-Matter Interactions and Applications Quantum optics and atomic interactions Quantum Information and Cryptography

Publication details

Journal / source
Optical and Quantum Sensing and Precision Metrology II
Pages
82–82
Publication date
5 March 2026
Language
EN