Light guidance up to 6.5 μm in borosilicate soft glass hollow-core microstructured optical waveguides

STANISLAV PEREVOSCHIKOV, NIKITA KAYDANOV, TIMUR ERMATOV, OLGA BIBIKOVA, ISKANDER USENOV, TATIANA SAKHAROVA, ALEXEY BOCHARNIKOV, JULIA SKIBINA, VIACHESLAV ARTYUSHENKO, DMITRY GORIN

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Limited operating bandwidth originated from strong absorption of glass materials in the infrared (IR) spectral region has hindered the potential applications of microstructured optical waveguide (MOW)-based sensors. Here, we demonstrate multimode waveguide regime up to 6.5 μm for the hollow-core (HC) MOWs drawn from borosilicate soft glass. Effective light guidance in central HC (diameter ∼240 μm) was observed from 0.4 to 6.5 μm despite high waveguide losses (0.4 and 1 dB/cm in near- and mid-IR, respectively). Additional optimization of the waveguide structure can potentially extend its operating range and decrease transmission losses, offering an attractive alternative to tellurite and chalcogenide-based fibers. Featuring the transparency in mid-IR, HC MOWs are promising candidates for the creation of MOW-based sensors for chemical and biomedical applications.

Original languageEnglish
Article number399410
Pages (from-to)27940-27950
Number of pages11
JournalOptics Express
Volume28
Issue number19
DOIs
Publication statusPublished - Sep 2020

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