OPTICAL FIBER CONTACT

摘要

The present invention relates to an optical fiber contact for transmitting moderate-magnitude optical power, specifically power in the range of 50-500W. The fiber contact comprises an optical fiber having an inner core (1) and a surrounding cladding (2) for transmitting the radiation in the core. In order to mechanically stabilise the optical fiber it also comprises additional surrounding layers (3) in the form of so-called buffer and jackets. According to the invention the forward part (7) of the optical fiber contact is surrounded by a transparent tubular member (8), preferably made of a material similar to the material of the cladding (2), and which tubular member is extending a certain length (10) along the outer cylindrical surface of the cladding. This means that there is no heating by power loss radiation, as the power loss radiation is leaving the contact as optical radiation. In order to disperse any radiation propagating within the cladding (2), the cladding is provided with a roughening or additional layers of a transparent material. In case of additional layers of transparent material then the outermost layer should be roughened.