Fiber bragg gratings a fiber bragg grating is written in a, Ask an Expert

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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?

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