Fiber Bragg Gratings A fiber Bragg Grating is written in a fiber (n = 1.5) with a strength k = 2cm-1 and length L= 2 cm at λ = 1550nm.
a) What is the bandwidth of the grating in nm?
b) What is the Reflectivity (in %) and Transmission (in dB)?
c) If this grating were written in birefringent fiber where the difference in refractive index for the two polarizations, Δn = 10-3, what is the separation in grating wavelengths for the two polarizations?
d) Will this grating be any good for filtering unpolarized light?