Specialty Optical Fibers Handbook

diameter of 80 mm—a little more than two-thirds of that of a standard telecom-

munications fiber (125 mm). When bent, the induced stress within these fibers is

around 40% lower than that of the larger fiber (Fig. 8.23), slowing growth of

intrinsic flaws and boosting lifetimes from mere months to 20 years or more.

When used in the FOG or other intrinsic fiber sensors, reduced-diameter

fibers have the added benefit of enabling more fiber to be coiled within a given

volume, enhancing the sensitivity that may be achieved from a specific form

factor.

In conclusion, if you intend to use a PM fiber in a small package or coil, due

consideration should be given ...