CO2 Glass ablation for the micro fabrication of fiber components for medical and industrial applications

Jebali, M. A.; Basso, Eric; Hamam, Habib

doi:10.1117/12.2511310

Cited by 1 publication

(1 citation statement)

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“…Even though our reverse tapering process may not lead to perfect cladding size matching for all specialty fibers, it can always largely reduce the cladding size mismatch and thus lead to stronger joints. If necessary, the tapered SMF can be modified prior to splicing with well-developed techniques, such as hydrofluoric acid etching 22 and CO 2 laser ablation, 44 to further minimize the cladding size mismatch.…”

Section: ■ Experiments and Discussionmentioning

confidence: 99%

Robust Mode Matching between Structurally Dissimilar Optical Fiber Waveguides

Wang

Benabid

et al. 2021

ACS Photonics

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Robust low-loss optical fiber joints are a prerequisite in all-fiber devices. Joining structurally dissimilar fibers, such as microstructured optical fibers, is a timely challenge, as they are becoming important building blocks in photonics. In this paper we have revealed the mechanism of robust mode matching and demonstrated ultralow loss and high strength fusion splices between ultralarge mode-area photonic crystal fibers (ULMA-PCFs) and standard single mode fibers (SMFs) without using any intermediate bridging elements. To provide precise matching in both the mode field distribution and the cladding size between an SMF and an ULMA-PCF, we develop a two-step reverse tapering approach, involving reverse tapering an SMF and thermally expanding its core, where the fundamental mode can be adiabatically transferred and reach the optimized mode shape in the tailored reverse-taper. Using our new tapering approach, we achieve a record-low splice loss of 0.23 dB, regardless of the transmission direction, together with a mechanical strength an order of magnitude higher than that of a conventional sharp-edge joint. Our approach provides an effective way to overcome the splicing challenge for ultralarge mode specialty fibers and thus greatly facilitates the development of components and devices with such fibers.

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Section: ■ Experiments and Discussionmentioning

confidence: 99%