Infrared Optical Fibers and Their Applications to Sensing

Abstract

As commercially available infrared fibers transmitting light with the wavelength of 1 to 3μm, the three possiblities of silica, fluoride and chalcogenide glass fibers can be selected. In this review, firstly, the features of these fibers are briefly summarized. As an application of the fibers, next, a fiber chemical sensing is described including the various examples and focusing an on-or in-line process monitoring system recently developed in industries.