Multiport Optical Bare-Fiber Connector for Parallel Optical Interconnect Module (Special Issue on Electromechanical Devices and Their Materials)

概要

論文の詳細を見る
A high-density multi-port optical connector that exploits the flexibility of bare optical fibers has been developed for use as an optical interface of a parallel optical interconnection module. In the BF (Bare-Fiber) connector, 24 multimode-fibers are mated by direct physical contact in micro-glass-capillaries with a 250-μm pitch. The buckling forces of the optical fibers themselves secure the physical contact. Optical fiber buckling is investigated theoretically and experimentally. A new design method to optimize the span length l and the longitudinal displacement ΔL for the buckling is also proposed based on the requirements for optical characteristics, mechanical reliability, and dimensional tolerances, etc. A prototype BF connector with l of 10 mm and ΔL of 50 μm was designed and fabricated for multimode fiber connections. This connector provides high optical performance: an average insertion loss of 0.05 dB and a return loss of over 35 dB at 850 nm. The optical performance remained stable after a durability test with ten connection-repetitions.
社団法人電子情報通信学会の論文
1999-01-25