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日本光纤制造商的一些较新型产品有:色散位移光纤、保偏光纤和1.55μm单模光纤。包括日立电缆公司在内的四家主要制造商目前正在研制上述光纤中的一种或几种光纤,并且提供光纤样品。据古河电工公司透露,该公司准备今年就向市场投放色散位移光纤。这种光纤允许大长度线路内的中继器有较大的间距。据说,古河电工公司的1.55μm单模光纤和保偏光纤已准备就绪,但与之相配用的器件和
Some of the more recent products from Japanese fiber manufacturers include dispersion shifted fibers, polarization maintaining fibers, and 1.55μm singlemode fibers. Four major manufacturers, including Hitachi Cable, are currently developing one or more of the above optical fibers and providing optical fiber samples. According to Furukawa Electric said the company is ready to market this year to disperse dispersion fiber. This type of fiber allows repeaters in large lengths to have a larger pitch. It is said that Furukawa Electric’s 1.55μm single-mode fiber and polarization-maintaining fiber are ready, but matched with the device and