Optical Fiber Communication Test Questions

Q.   Which category/ies of wavelength division multiplexer comprise/s two 3dB couplers where the splitting of an incident beam takes place into two fiber paths, followed by the recombination with second 3-dB coupler?

a. Interference filter based devices
b. Angular dispersion based devices
c. Mach-Zehnder Interferometers
d. All of the above


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