Ultraviolet single-frequency coupled optofluidic ring resonator dye laser.
Ultraviolet single-frequency coupled optofluidic ring resonator dye laser.
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DOI：
10.1364/oe.20.019996
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发表时间：
2012-08
期刊：
影响因子：
3.8
通讯作者：
X. Tu;Xiang Wu;Ming Li;Liying Liu;Lei Xu
中科院分区：
文献类型：
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作者：
X. Tu;Xiang Wu;Ming Li;Liying Liu;Lei Xu
在由薄壁毛细管微流控环形腔和圆柱形谐振腔组成的耦合式光流控环形腔染料激光器中实现了紫外单频激射。每个谐振腔中的回音壁模式（WGM）相互耦合并产生单频激光发射。在386.75nm处产生单频激光，泵浦阈值为5.9 μJ/mm，边模抑制比（SMSR）约为20 dB。此外，激光主要在两个方向上发射，每个方向的发散度仅为10.5°。
Ultraviolet single-frequency lasing is realized in a coupled optofluidic ring resonator (COFRR) dye laser that consists of a thin-walled capillary microfluidic ring resonator and a cylindrical resonator. The whispering gallery modes (WGMs) in each resonator couple to each other and generate single-frequency laser emission. Single-frequency lasing occurs at 386.75 nm with a pump threshold of 5.9 μJ/mm. The side-mode-suppression ratio (SMSR) is about 20 dB. Moreover, the laser emits mainly in two directions, and each of them has a divergence of only 10.5°.