Minimal observables for discriminating laser cavity solitons in a microresonator-filtered fibre laser [Invited]

Optical Materials Express 2026 Open access

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Authors: Aadithya Suresh, Antonio Cutrona, Jordan McConnell, James Brooks, Sai Tak Chu, Brent Little, Roberto Morandotti, David Moss, Juan Sebastian Totero Gongora, Marco Peccianti, Alessia Pasquazi
DOI: 10.1364/ome.596703
Cited by: 1
References: 66

Abstract

We present a physics-guided discrimination approach for the practical identification of laser cavity solitons in a microresonator-filtered fibre laser. We introduce simple experimental observables derived from radio-frequency characterisation of the laser output, such as the low-frequency variance around DC and the normalised AC power. We show that, in conjunction with simple optical-spectrum observables such as the number of comb lines, they are sufficient to discriminate laser cavity solitons within the experimental microcomb landscape defined by the key control parameters of the system—erbium pump power and fibre-cavity length. Based on these quantities, we discuss simple heuristic figures of merit that exhibit a clear minimum for soliton states, paving the way for automated state discrimination.

Fields of Study & Subjects

Advanced Fiber Laser Technologies Optical Network Technologies Advanced Fiber Optic Sensors

Publication details

Journal / source
Optical Materials Express
Publisher
Optica Publishing Group
Volume
16
Issue
6
Pages
1782–1782
Publication date
29 April 2026
Language
EN