An alternative modification of the dispersion characteristics of single mode fibers involves achievement of low dispersion gap over the low-loss wavelength region between __________

Optoelectronics and Optical Communication 

An alternative modification of the dispersion characteristics of single mode fibers involves achievement of low dispersion gap over the low-loss wavelength region between __________

a) 0.2 and 0.9μm 
b) 0.1 and 0.2μm 
c) 1.3 and 1.6μm 
d) 2 and 3μm

Answer : - 1.3 and 1.6μm

Dispersion characteristics can be altered by changing fiber parameters and wavelength.
The achievement of low dispersion gap over the region 1.3 and 1.6μm modifies the dispersion characteristics of single mode fibers.