Journal
CHINESE OPTICS LETTERS
Volume 20, Issue 3, Pages -Publisher
OSA-OPTICAL SOC
DOI: 10.3788/COL202220.031405
Keywords
femtosecond laser; structural beams; pulse shaping; amplifier
Categories
Funding
- National Natural Science Foundation of China (NSFC) [61905148, 61805278, 61775146]
- Equipment Pre-research Field Foundation [61404140304]
- China Postdoctoral Science Foundation [2018M633704]
- State Key Laboratory of Advanced Optical Communication Systems and Networks
Ask authors/readers for more resources
This paper investigates the generation of high quality cylindrical vector beams (CVBs) in a fiber chirped-pulse amplification laser system. The CVBs obtained have non-uniform state of polarizations and high peak power. The comparison between simulated intensity profiles and measured experimental results confirms the remarkable intensity distribution of the generated CVBs. The proposed configuration of the laser system provides a promising solution for high quality CVBs with high peak power, ultrashort pulse duration, and high mode purity.
Cylindrical vector beams (CVBs), with non-uniform state of polarizations, have become an indispensable tool in many areas of science and technology. However, little research has explored high power CVBs at the femtosecond regime. In this paper, we report on the generation of high quality CVBs with high peak power and femtosecond pulse duration in a fiber chirped-pulse amplification laser system. The radially (azimuthally) polarized vector beam has been obtained with a pulse duration of 440 fs (430 fs) and a maximum average output power of 20.36 W (20.12 W). The maximum output pulse energy is similar to 20 mu J at a repetition rate of 1 MHz, corresponding to a high peak power of similar to 46 MW. The comparison between simulated intensity profiles and measured experimental results suggests that the generated CVBs have a remarkable intensity distribution. The proposed configuration of our laser system provides a promising solution for high quality CVBs generation with the characteristics of high peak power, ultrashort pulse duration, and high mode purity.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available