Abstract: In the conventional process of the handling of the relatively short optical fiber, the optical fiber is wound into a coreless loop and is tied up by using spiral tubes or is fixed by adhesive tape, to attach ferule to the terminal of the fiber, to form antireflective layer, to deliver. However, due to hardness and weakness against bending, the optical fiber have to be corrected the holding according to work respectively, in addition, there are problem such that the optical fiber is unwound and snapped. The present invention solved such problem by providing compact holding equipment for optical fiber comprising at least one optical fiber holding area which comprises core of reel, side walls connected with the core of reel and elastic projections formed on at least one of the side wall, made of, for example, fluororubber.

Abstract: Optical transmission lines in optical transmission systems or laser beam source-applied devices, which utilize optical fibers as optical transmission lines, are connected by optically coupling to an optical fiber terminal portion, which is configured by holding the vicinity of the optical fiber terminal portion with a capillary tube, a ferrule or the like at the connecting portions of the transmission lines. With this configuration, minimizing return loss at the optical fiber terminal portion is a key issue. As a solution thereof, a capillary tube made of glass is used; however, since insertion by driving in or press fitting to a metallic tube or the like is impossible, mass production is impossible, accurate processing is impossible, and it is costly due to the characteristics of the glass, there are many restrictions in the usage thereof.

Abstract: Optical transmission lines in optical transmission systems or laser beam source-applied devices, which utilize optical fibers as optical transmission lines, are connected by optically coupling to an optical fiber terminal portion, which is configured by holding the vicinity of the optical fiber terminal portion with a capillary tube, a ferrule or the like at the connecting portions of the transmission lines. With this configuration, minimizing return loss at the optical fiber terminal portion is a key issue.