[B-10A_B-13] Optical Communication SystemsA (Optical Fibers)/Optical Fiber Technologies

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)

[B-10A_B-13-18] Stimulated Raman Scattering Suppressed Low-Loss High-Power Fiber Cable

〇Yusuke Fujii^1,2, Toshihiro Suda¹, Kazusa Shinno², Naoki Karasawa², Naoto Yoshimoto², Soichi Kobayashi¹ (1. Photonic Science Tech., 2. CIST)

Keywords:

Photonic Crystal Fiber,Stimulated Raman Scattering,Finite Element Method,Effective Area

Conventional high-power photonic crystal fibers (PCFs) for multi-kilowatt transmission typically have a structure where air holes of the same diameter are arranged in a triangular lattice (to suppress stimulated Raman scattering), achieving low propagation losses of less than 10^-3 dB/m. However, these PCFs suffer from high bending losses. To address this issue, this report proposes a PCF cable with low loss by designing a structure that is strong against bending in one direction (the x-direction) and allows light to propagate near the core. This is clarified through analysis and experiments.