Advanced Devices & Instrumentation / 2021 / Article / Fig 2

Review Article

Advanced Thermally Drawn Multimaterial Fibers: Structure-Enabled Functionalities

Figure 2

Schematic of the thermal drawing process and optical fibers with different structures. (a) Schematic of the thermal drawing process. (b) Schematic of hollow-core Bragg fibers. (c) Schematic of hollow-core microstructured fiber with several rings of air holes separated by nanoscale support bridges. (d) Schematic of hollow-core PBG fiber. (e) Optical image of all solid PBG fibers. Reproduced with permission. Copyright 2007, The Optical Society [44]. (f) SEM image of antiresonant hollow-core optical fiber. Reproduced under the terms of the Creative Commons Attribution license (CC BY 4.0). https://creativecommons.org/licenses/by/4.0/ [98]. (g) Functional material (ZnSe) deposited in hollow-core fiber via HPCVD. Reproduced with permission. Copyright 2011, Wiley-VCH [99].