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10 June 2024 High-resolution spectrometer using Brillouin lasing for spectral compression
Joseph B. Murray, Brandon Redding, Matthew J. Murray
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Proceedings Volume 13044, Optical Waveguide and Laser Sensors III; 1304406 (2024) https://doi.org/10.1117/12.3013406
Event: SPIE Defense + Commercial Sensing, 2024, National Harbor, Maryland, United States
Abstract
We present a new approach for high-resolution spectral analysis based on Brillouin lasing. Unlike conventional Brillouin spectrometers, we exploit the wavelength dependence of the Brillouin frequency shift which changes by ~55kHz for every 1GHz of optical frequency. This enables continuous monitoring of the entire C-band (4THz or 25nm) with 28MHz (or 0.2pm) resolution in just 5ms. Our all-fiber system utilizes off-the-shelf components, providing a simple solution for high-resolution, broadband spectral analysis.
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Joseph B. Murray, Brandon Redding, and Matthew J. Murray "High-resolution spectrometer using Brillouin lasing for spectral compression", Proc. SPIE 13044, Optical Waveguide and Laser Sensors III, 1304406 (10 June 2024); https://doi.org/10.1117/12.3013406
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KEYWORDS
Spectral resolution
Spectroscopy
Laser frequency
Quenching
Spectrum analysis
Homodyne detection
Photonic devices
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