Chirped rectilinear core longitudinally-graded optical fibers |
| |
Affiliation: | 1. Department of Materials Science and Engineering, Center for Advanced Materials and Nanotechnology, Lehigh University, Bethlehem, PA 18015, United States;2. Department of NanoEngineering, Program of Materials Science and Engineering, University of California, San Diego, CA 92093, United States |
| |
Abstract: | Reported here is a straight-forward and flexible method to fabricate silica optical fibers of circular cladding cross-section and rectilinear cores whose aspect ratio and refractive index profile changes with position along the fiber in a deterministic way. Specifically, a modification to the process recently developed to produce longitudinally-graded optical fibers, LGFs [Opt. Express 20 (2012) 17394–17402], was employed. Herein reported are MCVD-derived germanosilicate fibers with rectangular cores where the aspect ratio changes by nearly 200% and the average refractive index changed by about 5%. Fiber losses were measured to be about 50 dB/km. Such rectangular core fibers are useful for a variety of telecommunication and biomedical applications and the dimensional and optical chirp provides a deterministic way to control further the modal properties of the fiber. |
| |
Keywords: | Specialty optical fiber Rectangular core optical fiber SBS suppression |
本文献已被 ScienceDirect 等数据库收录! |
|