3. A Fabry-Perot filter is used to select 100 channels spaced apart by 0.2nm. What should be the cavity length and the mirror reflectivities of the filter? Assume a refractive index of 1.5 and an operating wavelength of 1550nm.
3. A Fabry-Perot filter is used to select 100 channels spaced apart by 0.2nm. What should be the cavity length and the mirror reflectivities of the filter? Assume a refractive index of 1.5 and an operating wavelength of 1550nm.
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