Presentation
15 June 2023 Optical spectrum analyzer based on pulsed Brillouin lasing
Joseph B. Murray, Matthew J. Murray, Brandon Redding
Author Affiliations +
Abstract
We introduce an optical spectrum analyzer that relies on the linear relationship between optical frequency and the Brillouin frequency shift (BFS) in optical fiber. To measure the Brillouin frequency shift, we use the signal under test as a “pump” to excite Brillouin lasing in a fiber ring cavity and use self-referenced heterodyne detection to measure the frequency shift of this Brillouin lasing mode. We present the basic operation of the system and demonstrate wideband measurements over ~48 nm with 20 MHz (0.16 pm) resolution at a measurement rate of 10 kHz.
Conference Presentation
© (2023) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Joseph B. Murray, Matthew J. Murray, and Brandon Redding "Optical spectrum analyzer based on pulsed Brillouin lasing", Proc. SPIE 12516, Next-Generation Spectroscopic Technologies XV, 125160P (15 June 2023); https://doi.org/10.1117/12.2663826
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KEYWORDS
Spectrum analysis

Optical fibers

Signal detection

Heterodyning

Modulators

Photonic devices

Spectral resolution

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