Cheng Yu, Pan Yu, Liu Houquan, Xiao Yiming, Deng ShiJie, Teng Chuanxin, Yang Hongyan, Deng Hongchang, Yuan Libo
School of Optoelectronic Engineering, Guilin University of Electronic Technology, Guilin, 541004, China.
Guangxi Key Laboratory of Optoelectronic Information Processing, Guilin University of Electronic Technology, Guilin, 541004, China.
Heliyon. 2023 Aug 23;9(9):e19412. doi: 10.1016/j.heliyon.2023.e19412. eCollection 2023 Sep.
PCTF (pear-shaped conjoined-tube fiber) is presented as a new ultraviolet (UV) guiding fiber with low loss. Results indicate that two PCTFs have better properties than that of previous studies in the UV band. The total loss of two PCTFs is less than 1 dB/km, and its bandwidth exceeds 150 nm between 0.2 and 0.4 μm. Furthermore, PCTF's single-mode performance is very promising, as evidenced by the higher-order mode extinction ratio (HOMER) over 10. The fabrication tolerance is discussed in this paper and results show that the tolerance is good enough to fabricate by normal fiber drawing process. This fiber is promising in applications for nonlinear optics, ultrafast optics, high power laser, and quantum optics.
梨形连体管光纤（PCTF）是一种新型的低损耗紫外光导纤维。结果表明，两根PCTF在紫外波段的性能优于以往的研究。两根PCTF的总损耗小于1dB/km，在0.2至0.4μm之间其带宽超过150nm。此外，PCTF的单模性能非常有前景，高阶模消光比（HOMER）超过10就证明了这一点。本文讨论了其制造容差，结果表明该容差足以通过常规光纤拉丝工艺进行制造。这种光纤在非线性光学、超快光学、高功率激光和量子光学等应用中很有前景。
