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Proceedings Paper

A random fiber laser with cylindrical vector beams emission
Author(s): Jinghao Wang; Ruishan Chen; Songzheng Yu; Junna Yao; Hai Ming; Anting Wang
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Paper Abstract

We demonstrate a random fiber laser with cylindrical vector beams (CVBs) emission. A 9-km-long fiber is applied to form one of the laser mirrors providing random distributed feedback (RDFB). Due to the RDFB provided by the ultralong fiber, mode competitions are well suppressed in the cavity leading to the laser output with modeless behavior. A mode selective coupler (MSC) inserted in the cavity is used to achieve the mode conversion from fundamental mode to cylindrical vector modes. By adjusting the mechanical polarization controllers carefully, both azimuthally and radially polarized beams are achieved with high mode purity. The designed laser retains many advantages of the random lasers, such as low cost and modeless output. The CVBs with modeless behavior may be useful in many practical applications such as biomedical imaging, laser radars and free space communication.

Paper Details

Date Published: 9 September 2019
PDF: 6 pages
Proc. SPIE 11107, Laser Beam Shaping XIX, 1110704 (9 September 2019);
Show Author Affiliations
Jinghao Wang, Univ. of Science and Technology of China (China)
Ruishan Chen, Univ. of Science and Technology of China (China)
Songzheng Yu, Univ. of Science and Technology of China (China)
Junna Yao, Univ. of Science and Technology of China (China)
Hai Ming, Univ. of Science and Technology of China (China)
Anting Wang, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 11107:
Laser Beam Shaping XIX
Angela Dudley; Alexander V. Laskin, Editor(s)

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