Abstract
We report the fabrication and characterization of Kagome hollow-core antiresonant fibers, which combine low attenuation (as measured at ∼30 cm bend diameter) with a wide operating bandwidth and high modal purity. Record low attenuation values are reported: 12.3dB/km, 13.9dB/km, and 9.6dB/km in three different fibers optimized for operation at 1μm, 1.55μm, and 2.5μm, respectively. These fibers are excellent candidates for ultra-high power delivery at key laser wavelengths including 1.064μm and 2.94μm, as well as for applications in gas-based sensing and nonlinear optics.
Highlights
Hollow core anti-resonant fibers (HC-ARFs) form a subset of the expanding family of hollow core-photonic crystal fibers (HC-PCFs)
The 17 dB/km Kagome hollow core anti-resonant fibers (K-ARFs) [10] has a low loss bandwidth of only ~10 nm and compromises on one of the key parameters that is typically exploited in a K-ARF and the 8.5 dB/km K-ARF in [11] has high bend loss, so that the low attenuation value is measured with a 70 cm bend diameter
We report the fabrication of three K-ARFs, designed for operation at 1 μm [13], 1.55 μm and 2.5 μm respectively, that all have record low attenuation while maintaining broad operating bandwidths and represent a new state of the art for KARFs
Summary
Hollow core anti-resonant fibers (HC-ARFs) form a subset of the expanding family of hollow core-photonic crystal fibers (HC-PCFs). The attenuation of K-ARFs at wavelengths around 1 μm or below can compete, or even be lower than, losses achieved in hollow core photonic bandgap fibers [12].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
