Specialty Optical Fibers Handbook

processing industry as the main optical component of compact high-power fiber

lasers. For an economic reason, hydrogen loading of the very low price standard

single-mode fiber is even more widely used in the optical communication indus-

try and in the sensor field. This subject was treated briefly because it is well

covered in the literature [11, 30]. Photosensitive SOFs treated in this chapter

were all made by the MCVD process. The rare earth, aluminum, or high

phosphorous content when needed was incorporated by the solution-doping

technique. Other CVD processes are used but were not discussed here. Upon

future needs, improved photosensitive fibers ...