OPTICAL FIBER PROBE

摘要

PURPOSE:To prevent burning loss in the heat generation of an optical fiber by keeping heat of a laser light absorbed by a window or a holder from being transmitted to an end of the optical fiber in an optical fiber probe of a laser irradiator to be used in treatment or the like of a human body. CONSTITUTION:One end of a metal protective tube 2 housing an optical fiber 1 is fixed with an incoming side holding member 6 while the other end thereof is fixed with an outgoing side holding member 4 in an integral manner and the outgoing side holding member 4 is fixed in a holder 7. The outgoing side holding member 4 is formed from a material having an heat insulating effect. The holder 7 is made of a metal material with a large reflection so that neither scattering light nor reflected light causes burning loss and the laser light is hard to be absorbed This allows the cutting of heat of optical members and the holder heated by the laser light thereby preventing burning loss with the suppression of heat generated in the optical fiber.