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3 February 2020 Passively Q-switched fiber laser at the C + L band based on DMSO-SA
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Abstract

A Q-switched fiber laser at the C + L band using an organic solution saturable absorber (SA) of dimethyl sulfoxide (DMSO) is proposed and demonstrated. The modulation depth of the DMSO-SA is measured to be 5.09%. The Q-switched operation in the laser was achieved using DMSO-SA. This Q-switched fiber laser shows an average output power of 7.9 mW with a pulse repetition rate of 21.74 kHz, a pulse width of 9  μs, and single pulse energy reaches 458.2 nJ with power set to 140 mW. Varying wavelength from 1561 to 1594 nm resulted in a stable Q-switched pulse output. The novel Q-switched laser exhibits self-starting, good stability, and high pulse energy characteristics.

© 2020 Society of Photo-Optical Instrumentation Engineers (SPIE) 0091-3286/2020/$28.00 © 2020 SPIE
Luoxin Wang, Hongdong Zhao, and Hongli Dai "Passively Q-switched fiber laser at the C + L band based on DMSO-SA," Optical Engineering 59(2), 026101 (3 February 2020). https://doi.org/10.1117/1.OE.59.2.026101
Received: 15 October 2019; Accepted: 11 December 2019; Published: 3 February 2020
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