title: Theoretical and experimental analysis of splicing between the photonic crystal fiber and the conventional fiber using grin fibers.
abstract: Photonic crystal fibers (PCFs) are widely used in all-fiber, high-power lasers and supercontinuum sources. However, the splice loss between PCFs and conventional fibers limits its development. Grin fibers and coreless fibers were used as a fiber lens to achieve low-loss, high-strength splicing between PCFs and single-mode fibers (SMFs). The beam propagation method was used to optimize the lengths of grin fibers and coreless fibers for a minimum splice loss. The splice loss changing with the lengths of grin fiber, coreless fiber, and the air-hole collapsed region was systematically studied theoretically and experimentally. Ultimately, a minimum splice loss of 0.26 dB at 1064 nm was realized between a high-nonlinear PCF and a conventional SMF with this method.
authors.affiliation: Shenzhen Key Laboratory of Laser Engineering, College of Electronic Science and Technology, Shenzhen University, Shenzhen, China.
authors.forename: De-qin
authors.initials: DQ
authors.lastname: Ouyang
authors.forename: Chun-yu
authors.initials: CY
authors.lastname: Guo
authors.forename: Shuang-chen
authors.initials: SC
authors.lastname: Ruan
authors.forename: Yi-ming
authors.initials: YM
authors.lastname: Wu
authors.forename: Jin-hui
authors.initials: JH
authors.lastname: Yang
authors.forename: Huai-qin
authors.initials: HQ
authors.lastname: Lin
authors.forename: Hui-feng
authors.initials: HF
authors.lastname: Wei