High-power low spatial coherence random fiber laser

Rui Ma, Jia Qi Li, Jia Yu Guo, Han Wu, Hua Hui Zhang, Bo Hu, Yun Jiang Rao*, Wei Li Zhang

*Corresponding author for this work

Research output: Contribution to journalArticle

Abstract

A high-power multi-transverse modes random fiber laser (RFL) is investigated by combining a master oscillator power-amplifier (MOPA) configuration with a segment of extra-large mode area step-index multimode fiber (MMF). Spatial coherence of the high-power multi-transverse modes RFL has been analyzed, which shows that speckle contrast is reduced dramatically with the output power increasing. In this way, considerably low speckle contrast of ~0.01 is achieved under high laser power of ~56 W, which are the records for multi-transverse modes RFLs in both spatial coherence and output power. This work paves a way to develop high-power RFLs with very low spatial coherence for wide-range speckle-free imaging and free-space communication applications.

Original languageEnglish
Pages (from-to)8738-8744
Number of pages7
JournalOptics Express
Volume27
Issue number6
Early online date11 Mar 2019
DOIs
Publication statusE-pub ahead of print - 11 Mar 2019

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fiber lasers
space communication
output
power amplifiers
high power lasers
oscillators
fibers
configurations

Bibliographical note

© 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

Cite this

Ma, R., Li, J. Q., Guo, J. Y., Wu, H., Zhang, H. H., Hu, B., ... Zhang, W. L. (2019). High-power low spatial coherence random fiber laser. Optics Express, 27(6), 8738-8744. https://doi.org/10.1364/OE.27.008738
Ma, Rui ; Li, Jia Qi ; Guo, Jia Yu ; Wu, Han ; Zhang, Hua Hui ; Hu, Bo ; Rao, Yun Jiang ; Zhang, Wei Li. / High-power low spatial coherence random fiber laser. In: Optics Express. 2019 ; Vol. 27, No. 6. pp. 8738-8744.
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Ma, R, Li, JQ, Guo, JY, Wu, H, Zhang, HH, Hu, B, Rao, YJ & Zhang, WL 2019, 'High-power low spatial coherence random fiber laser', Optics Express, vol. 27, no. 6, pp. 8738-8744. https://doi.org/10.1364/OE.27.008738

High-power low spatial coherence random fiber laser. / Ma, Rui; Li, Jia Qi; Guo, Jia Yu; Wu, Han; Zhang, Hua Hui; Hu, Bo; Rao, Yun Jiang; Zhang, Wei Li.

In: Optics Express, Vol. 27, No. 6, 11.03.2019, p. 8738-8744.

Research output: Contribution to journalArticle

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AU - Zhang, Wei Li

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Ma R, Li JQ, Guo JY, Wu H, Zhang HH, Hu B et al. High-power low spatial coherence random fiber laser. Optics Express. 2019 Mar 11;27(6):8738-8744. https://doi.org/10.1364/OE.27.008738