A compact, dual-colour chirped-pulse laser system for field-deployable coherent Rayleigh-Brillouin scattering diagnostics
Abstract
Single-shot coherent Rayleigh-Brillouin scattering (CRBS) requires dual colour, frequency, and pulse duration agile laser systems, currently available only in laboratory layouts. In this work, we present a compact, portable, and robust next generation laser system that meets all of these requirements. Key features include an integrated master-slave seed laser design for stable frequency chirping, fiber-coupled acousto-optic modulator (AOM) gated pulse shaping for long-term thermal stability, and customized amplification stages in a rugged, portable enclosure which simplifiy the alignment and maintenance process. The system in this implementation can deliver up to $450$~mJ per arm, chirp rates up to ∼22~MHz/ns, and arbitrary temporal profiles within ∼25~ns to ∼1~μs. This laser system is validated by measuring the neutral number density of an atmospheric plasma jet, and a two-dimensional temperature map is constructed, demonstrating lab-grade diagnostics for field deployment.
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BibTeX
@misc{zhao2026compact,
title = {{A compact, dual-colour chirped-pulse laser system for field-deployable coherent Rayleigh-Brillouin scattering diagnostics}},
author = {Yingjie Zhao and Gabriel M. Flores Alfaro and Carmen Pascual-Fort and Gabi-Daniel Stancu and Alexandros Gerakis},
howpublished = {arXiv},
year = {2026},
month = oct,
doi = {10.48550/arxiv.2610.23549},
eprint = {2610.23549},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.23549},
}
RIS
TY - UNPB
TI - A compact, dual-colour chirped-pulse laser system for field-deployable coherent Rayleigh-Brillouin scattering diagnostics
AU - Yingjie Zhao
AU - Gabriel M. Flores Alfaro
AU - Carmen Pascual-Fort
AU - Gabi-Daniel Stancu
AU - Alexandros Gerakis
PY - 2026
DA - 2026/10/16
PB - arXiv
DO - 10.48550/arxiv.2610.23549
UR - https://arxiv.org/abs/2610.23549
AB - Single-shot coherent Rayleigh-Brillouin scattering (CRBS) requires dual colour, frequency, and pulse duration agile laser systems, currently available only in laboratory layouts. In this work, we present a compact, portable, and robust next generation laser system that meets all of these requirements. Key features include an integrated master-slave seed laser design for stable frequency chirping, fiber-coupled acousto-optic modulator (AOM) gated pulse shaping for long-term thermal stability, and customized amplification stages in a rugged, portable enclosure which simplifiy the alignment and maintenance process. The system in this implementation can deliver up to $450$~mJ per arm, chirp rates up to ∼22~MHz/ns, and arbitrary temporal profiles within ∼25~ns to ∼1~μs. This laser system is validated by measuring the neutral number density of an atmospheric plasma jet, and a two-dimensional temperature map is constructed, demonstrating lab-grade diagnostics for field deployment.
ER -