An optical fiber of a silica-based material includes a coating of cured silicone rubber covering an outer surface thereof. The cured silicone rubber coating, when subjected to an infrared spectroscopic measurement, has a transmissivity of not less than 70% at a wave number of 2100 to 2200 cm-1 at a coating thickness of 0.1 mm due to the infrared absorption due to the stretching and vibration of SiH. The coating of cured silicone rubber contains a neglibible amount of SiH so that the transmission loss of the optical fiber can be prevented from increasing over a long period of time.
申请公布号
US4679899(A)
申请公布日期
1987.07.14
申请号
US19850706574
申请日期
1985.02.28
申请人
FUJIKURA LTD.;NIPPON TELEGRAPH & TELEPHONE PUBLIC CORPORATION