Bicolor Bessel beams generator based on single-mode fiber for STED system light source

被引：0
|
作者：
Shao, Luaing [1 ]
Li, Xijun [1 ,2 ,3 ]
Qiu, Min [1 ,2 ,3 ]
机构：
[1] Westlake Univ, Sch Engn, Key Lab 3D Micro Nano Fabricat & Characterizat Zh, Hangzhou 310024, Peoples R China
[2] Westlake Inst Optoelect, Hangzhou 311421, Peoples R China
[3] Westlake Inst Adv Study, Inst Adv Technol, Hangzhou 310024, Peoples R China
来源：
EOS ANNUAL MEETING, EOSAM 2024 | 2024年 / 309卷
关键词：
STIMULATED-EMISSION;
D O I：
10.1051/epjconf/202430912003
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
In this paper, we have presented a novel and compact bicolor Bessel beams (bi-BBs) generator based on a single-mode fiber integrated with an axicon-like microstructure (AM). The proposed design utilized two Bessel beams manifested as pump beam of circular distribution at lambda=405 nm and STED beam of donut distribution at lambda=532 nm. Through numerical simulations, the influence of the AM size variance on the characteristics of bi-BBs was investigated and a type of AMs has been found to support STED beam. By controlling and optimizing the characteristics of bi-BBs emitted from a single-mode fiber greatly reduces the coaxial alignment difficulty of the free space STED systems and provides a new way to achieve mirrorless STED super-resolution systems.
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页数：2
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