Passive Optical Networks

Figure 3.35 (a) Calculated and experimental mode field diameter

mismatch as a function of hole arrangement; (b) splice

loss induced by MFD mismatch as a function of

refractive index difference between N

hole

and N

clad

.

(From Ref [38]) 118

Figure 3.36 Comparison of three GI-POFs with differing core

diameter and numerical aperture (NA): (a) refractive

index profile; and (b) bending loss as a function of

radius. (From Ref [47]) 120

Figure 3.37 (a) Core diameter and (b) NA dependence loss at

bending radius of 5 mm. (From Ref [47]) 121

Figure 3.38 (a) Bending loss of GI POF with a core

diameter ¼ 200 mm and NA ¼ 0.24; (b) optimum

waveguide parameters of GI POF to suppress the

bending loss. (From Ref [47]) 122

Figure 3.39 Schematic diagram of an index-guided Fabry–Perot ...