Generating high-peak-power structured lights in selectively pumped passively Q-switched lasers with astigmatic mode transformations

C. C. Chang, Y. H. Hsieh, C. Y. Lee, C. L. Sung, P. H. Tuan, J. C. Tung, H. C. Liang, Yung-Fu Chen*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

Various high-order Hermite-Gaussian (HG) modes with high repetition rates and high peak powers are systematically generated by designing the cavity configuration to satisfy the criterion of the passive Q-switching. For the HG m,0 modes with the order m = 1-9, the pulse repetition rate can exceed 100 kHz with peak power higher than 0.3 kW. For the HG m,m modes with the order m = 1-10, the pulse repetition rate can be up to 37 kHz with peak power higher than 0.35 kW. Furthermore, the high-order HG beams is transformed by using an astigmatic mode converter to generate various structured lights with optical vortices. Experimental patterns of the transformed high-order HG beams in the propagation are theoretically analyzed and the phase structures are numerically manifested.

Original languageEnglish
Article number125805
JournalLaser Physics
Volume27
Issue number12
DOIs
StatePublished - 1 Dec 2017

Keywords

  • mode conversions
  • passive Q-switching
  • structured lights

Fingerprint Dive into the research topics of 'Generating high-peak-power structured lights in selectively pumped passively Q-switched lasers with astigmatic mode transformations'. Together they form a unique fingerprint.

Cite this