An all-fiber laser oscillating directly at a single TE01 mode with ring-core fibers

For the first time, an azimuthally polarized fiber laser without any polarization controller is proposed and demonstrated experimentally. The scheme is based on a self-designed ring-core fiber and transverse mode filter (TMF). The ring-core fiber can break the degeneracy of LP11 modes and make the T...

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Bibliographic Details
Published in:Applied physics express 2019-05, Vol.12 (5)
Main Authors: Zhang, Yimin, Li, Hongxun, Dai, Chuansheng, Tao, Runxia, Xu, Lixin, Gu, Chun, Chen, Wei, Zhu, Yonggang, Zhan, Qiwen, Yao, Peijun
Format: Article
Language:English
Subjects:
cylindrical vector beam
high-order mode fiber laser
ring-core fiber
transverse mode filter
Online Access:Get full text
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Summary:For the first time, an azimuthally polarized fiber laser without any polarization controller is proposed and demonstrated experimentally. The scheme is based on a self-designed ring-core fiber and transverse mode filter (TMF). The ring-core fiber can break the degeneracy of LP11 modes and make the TE01 mode propagate stably in the fiber laser. The TMF, which is made from the ring-core fiber by depositing a layer of aluminum on the cladding surface, can effectively suppress modes other than the TE01 mode. This study opens a new avenue toward the practical application of cylindrical vector beam fiber lasers.
ISSN:1882-0778
1882-0786
DOI:10.7567/1882-0786/ab0a38