High-Order Mode Mode-Locked Fiber Laser Based on Few-Mode Saturable Absorber

High-Order Mode Mode-Locked Fiber Laser Based on Few-Mode Saturable Absorber

Citation

  • Title: High-order mode mode-locked fiber laser based on few-mode saturable absorber
  • Authors: Yi Huang, Si Lv, Linping Teng, Longtao Wang, Jiafeng Lu, Jiangtao Xu, and Xianglong Zeng

Keywords

  • long period fiber grating
  • mode selective coupler
  • nonlinear saturation absorption characteristic
  • high-order mode mode-locked fiber laser

Brief

The article demonstrates two configurations of high-order mode (LP11) mode-locked fiber lasers using few-mode saturable absorbers (CNT-SA and FM-based SESAM) and mode converters (LPFG, MSC) for direct oscillation of high-order modes.

Summary

The paper demonstrates directly mode-locking high-order modes (specifically LP11) in fiber lasers. It achieves this using few-mode saturable absorbers (CNT or FM-based SESAM) and mode converters (LPFG, MSC) integrated inside the laser cavity. Two different laser configurations (ring and linear) were successfully used to generate LP11 mode and cylindrical vector beams.

Origin: https://sci.bban.top/pdf/10.1109/jphot.2021.3077571.pdf#

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