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Stranded Loose Tube Cable with Large Core 200/230－37 MMF

孙志雄　熊壮　许定　万冰　周珍福

（长飞光纤光缆有限公司，湖北武汉，400073）

Sun Zhixiong Xiongzhuang  Xu Dingfang Wanbing Zhou Zhenfu

（Yangtze Optical Fiber & Cable Co，Ltd. Wuhan，HubeiPost Code： 430073）

Abstract

　　Large core multimode fiber is introduced. A stranded loose tube cable with large core multimode fiber （200/230－37μm） is developed. With double corrugated steel and LSOH sheath，the cable is rodent－resistant and flame retardant. Compared the process with normal single mode fibers （Φ250m），the process and excess in secondary coating with large core MMFs （Φ500m） is studied. The cable is found to be satisfactory and now services in the application of sensor.

　　Key words：Large－core fiber；Multimode fiber；200/230_37；Rodent－resistant cable

　　1引言

　　本文首先介绍了大芯径多模光纤，然后分析了利用大芯径多模光纤制造松套层绞式光缆的关键工艺和试验结果，以总结这种产品的研发过程。