论文类型：期刊论文
第一作者：邓柏涛
通讯作者：司马朝坦
合写作者：谭红宇,张晓航,廉正刚,陈国群,余倩卿,徐江河,刘德明
发表刊物：Frontiers of Optoelectronics
收录刊物：EI
学科门类：工学
一级学科：光学工程
文献类型：J
卷号：14
期号：4
页面范围：407-413
ISSN号：2095-2767
关键字：antiresonant fiber (ARF), stepped refractive indices, confinement loss, bending loss, laser pumping
CN号：10-1029/TN
DOI码：10.1007/s12200-020-1109-9
发表时间：2021-01-05
摘要：With the benefits of low latency, wide transmission bandwidth, and large mode field area, hollow-core antiresonant fiber (HC-ARF) has been a research hotspot in the past decade. In this paper, a hollow core step-index antiresonant fiber (HC-SARF), with stepped refractive indices cladding, is proposed and numerically demonstrated with the benefits of loss reduction and bending improvement. Glass-based capillaries with both high (n = 1.45) and low (as low as n = 1.36) refractive indices layers are introduced and formatted in the cladding air holes. Using the finite element method to perform numerical analysis of the designed fiber, results show that at the laser wavelengths of 980 and 1064 nm, the confinement loss is favorably reduced by about 6 dB/km compared with the conventional uniform cladding HCARF. The bending loss, around 15 cm bending radius of this fiber, is also reduced by 2 dB/km. The cladding air hole radius in this fiber is further investigated to optimize the confinement loss and the mode field diameter with single-mode transmission behavior. This proposed HCSARF has great potential in optical fiber transmission and high energy delivery.
发布期刊链接：https://journal.hep.com.cn/foe/EN/10.1007/s12200-020-1109-9