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19 September 2019 Study of an erbium-doped fiber ring laser with dense wavelength division multiplexing-compatible spectrum for differential interferometry system
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Abstract

An erbium-doped fiber ring laser operating at the C-band is experimentally demonstrated. A maximum output laser power of 0.13 dBm with a step-like spectrum and 3-dB bandwidth of more than 0.4 nm is obtained. Output power is theoretically simulated and fits well with experiment data. A slight improvement in signal-to-noise ratio is observed when the ring laser is applied in an optical fiber sensing system compared to a conventional superluminescent laser, and its compatibility with dense wavelength division multiplexing (DWDM) is verified. We believe the ring laser in this article has potential in the future use of a DWDM optical fiber sensing system.

© 2019 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2019/$28.00 © 2019 SPIE
Yuze Yan, Ji Bian, and Chao Wang "Study of an erbium-doped fiber ring laser with dense wavelength division multiplexing-compatible spectrum for differential interferometry system," Optical Engineering 58(9), 096106 (19 September 2019). https://doi.org/10.1117/1.OE.58.9.096106
Received: 21 May 2019; Accepted: 5 September 2019; Published: 19 September 2019
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