物理学报Issue(3)：034206-1-034206-6,6.DOI:10.7498/aps.63.034206
新型全固态准晶体结构大模场光纤特性研究
Investigation of a novel all-solid large-mo de-area photonic quasi-crystal fib er
摘要
Abstract
Large-mode-area single-mode fibers play an important role in the field of high power lasers, high power delivery, and high sensitivity sensor. A novel all-solid large-mode-area single-mode photonic quasi-crystal fiber with extremely low loss is proposed. This kind of fiber contains a hexagonal quasi-crystal array of slightly fluorine-doped silica rods in a silica background. Its structure and properties are simulated numerically in virtue of finite element method. Effects of variation of d/Λ, or Λ on fiber loss and effective mode-area properties are investigated. Numerical results demonstrate that an effective mode-area of 5197 µm2, low confinement loss of 10-5 dB/km for fundamental mode and high confinement loss of 100 dB/km of second-order mode at a wavelength of 1064 nm. Numerical simulations show that this fiber can operate effectively in single-mode and remove the conflict between large-mode-area and low loss. Moreover, the bending loss for a bending radius of 10 cm is as low as 0.01 dB/m. This fiber can increase the thermal damage threshold of the PQF, decrease the coupling loss and simplify the fabrication process. The design of new fibers is highly meaningful for the development of high power delivery, fiber lasers, and fiber amplifiers.关键词
大模场面积/准晶体结构光纤/限制性损耗/弯曲损耗Key words
large-mode-area/photonic quasi-crystal fibers/confinement loss/bending loss引用本文复制引用
廖文英,范万德,李园,陈君,卜凡华,李海鹏,王新亚,黄鼎铭..新型全固态准晶体结构大模场光纤特性研究[J].物理学报,2014,(3):034206-1-034206-6,6.基金项目
南开大学本科生创新科研“百项工程”项目(批准号：BX11207)和国家自然科学基金国家基础科学人才培养基金(批准号:J1103208)资助的课题 （批准号：BX11207）
