Multiwavelength mode-locked cylindrical vector beam fiber laser based on mode selective coupler

Ping Huang, Yu Cai, Jie Wang, Hongdan Wan, Zuxing Zhang, Lin Zhang

Research output: Contribution to journalArticlepeer-review


We propose and demonstrate a multiwavelength mode-locked fiber laser with cylindrical vector beam generation for the first time, to the best of our knowledge. The mode-locking mechanism is based on a nonlinear polarization rotation effect in fiber, and the multiwavelength operation is contributed to by an in-line birefringence fiber filter with periodic multiple passbands, formed by incorporating a section of polarization maintaining fiber into the laser cavity with a fiber polarizer. Furthermore, by using a home-made mode selective coupler, which acts as both a mode converter from fundamental mode to higher-order mode and an output coupler, multiwavelength mode-locked cylindrical vector beams have been obtained. This may have potential applications in mode-division multiplexing optical fiber communication and material processing.

Original languageEnglish
Article number105103
Number of pages5
JournalLaser Physics Letters
Issue number10
Publication statusPublished - 21 Sep 2017


  • cylindrical vector beam
  • mode locking
  • multiwavelength


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