Design of a reflective cavity for laser enhancement of the fourth harmonic generation

KE Da; ZHAI Suya; WANG Xiaolei; LIN Haifeng; CHEN Weidong; LI Bingxuan; LIAO Wenbin; ZHANG Ge

doi:10.7510/jgjs.issn.1001-3806.2016.02.009

Reflective enhancement has been proved to be an efficient way to raise the transfer efficiency of 266nm laser generation by the fourth harmonic generation (FHG). However, the reported enhancement cavities have some disadvantages, such as, the light beams reflected by different times are not overlapped well and the beam quality of violet light is poor. In order to obtain better beam quality, a new reflective cavity was described to realize the well overlap of the beams reflected by different times. The beam profile and transfer efficiency were calculated. The results show that a good beam quality of FHG violet light can be achieved and the efficiency of FHG can be further improved.

Design of a reflective cavity for laser enhancement of the fourth harmonic generation

Corresponding author: WANG Xiaolei, 55041583@qq.com;

1. College of Materials Science and Engineering, Fuzhou University, Fzhou 350108, China;

2. Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Received Date: 2015-03-18

Accepted Date: 2015-03-24

Available Online: 2016-03-25

Abstract: Reflective enhancement has been proved to be an efficient way to raise the transfer efficiency of 266nm laser generation by the fourth harmonic generation (FHG). However, the reported enhancement cavities have some disadvantages, such as, the light beams reflected by different times are not overlapped well and the beam quality of violet light is poor. In order to obtain better beam quality, a new reflective cavity was described to realize the well overlap of the beams reflected by different times. The beam profile and transfer efficiency were calculated. The results show that a good beam quality of FHG violet light can be achieved and the efficiency of FHG can be further improved.

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Reference (15)

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Design of a reflective cavity for laser enhancement of the fourth harmonic generation

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