Low-loss single-mode hybrid-lattice hollow-core photonic crystal fiber

التفاصيل البيبلوغرافية
العنوان: Low-loss single-mode hybrid-lattice hollow-core photonic crystal fiber
المؤلفون: Amrani, Foued, Osório, Jonas H., Delahaye, Frédéric, Giovanardi, Fabio, Vincetti, Luca, Debord, Benoît, Gérôme, Frédéric, Benabid, Fetah
سنة النشر: 2020
المجموعة: Physics (Other)
مصطلحات موضوعية: Physics - Optics
الوصف: The remarkable recent demonstrations in ultralow loss Inhibited-Coupling (IC) hollow-core photonic crystal fibers (HCPCFs) place them as serious candidates for the next-generation of long-haul fiber optics systems. A hindrance to this prospect, but also to short-haul applications such as micromachining, where stable and high-quality beam delivery is needed, is the challenge to design and fabricate an IC-guiding fiber that combines ultra-low loss, truly and robust single-modeness, and polarization-maintaining operation. Design solutions proposed up to now require a trade-off between low loss and truly single modeness. Here, we propose a novel concept of IC HCPCF for obtaining low-loss and effective single-mode operation. The fiber is endowed with a hybrid cladding composed of a Kagome-tubular lattice (HKT). This new concept of microstructured cladding allows to significantly reduce confinement loss and, at the same time, preserving a truly and robust single-mode operation. Experimental results show a HKT-IC-HCPCF with a minimum loss figure of 1.6 dB/km at 1050 nm and a higher-order modes extinction ratio as high as 47.0 dB for a 10 m long fiber. The robustness of the fiber single-modeness was tested by moving the fiber and varying the coupling conditions. The design proposed herein opens a new route for the accomplishment of HCPCFs that combine robust ultralow loss transmission and single-mode beam delivery and provides new insight into the understanding of IC guidance.
نوع الوثيقة: Working Paper
DOI: 10.1038/s41377-020-00457-7
URL الوصول: http://arxiv.org/abs/2006.06375
رقم الانضمام: edsarx.2006.06375
قاعدة البيانات: arXiv
الوصف
DOI:10.1038/s41377-020-00457-7