Makoto Tsubokawa

TL;DR: A new interferometric scheme for measuring mode conversion distributed locally along a polarizationmaintaining fiber is presented and the power coupling coefficient, varying with magnitude and angle of external pressure transversely applied to a fiber, was evaluated both theoretically and experimentally.

TL;DR: This work proposes a novel conceptual model of a secure photonic network by introducing a quantum key distribution (QKD) network to its legacy structure and presents a roadmap of a deployment scenario, starting from niche applications such as mission critical and business applications and the next.

TL;DR: In this article, a burstmode 3R receiver using monolithic ICs for 10-Gbit/s-class optical access networks is reported, which can handle burst-mode optical packets with significantly different powers and phases.

TL;DR: In this article, the authors proposed a new photonic crystal fiber design with a W-shaped effective index profile to achieve the largest effective area (Aeff) for telecommunication use, achieving a 220μ m2Aeff while achieving both a cable cutoff wavelength of less than 1300 nm and a bending loss compatible with ITU-T recommendations G.655 and G. 656.

TL;DR: In this article, the authors suppressed fiber fuse propagation in hole assisted fiber (HAF) and photonic crystal fiber (PCF) with input powers above 14 W at 1480 and 1550 nm.