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Optimum bandpass optical filter synthesis using periodic corrugated waveguides with π/2 phase shifts

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3 Author(s)
Bakhtazad, A. ; Dept. of Electr. Eng., Shiraz Univ., Iran ; Abiri, H. ; Rahnavard, M.H.

A graphical method is proposed for the synthesis of optical bandpass filters, using π/2-phase shift sections. Bandpass filters with the desired characteristics, such as central wavelength, bandwidth, ripple factor, selectivity, minimum attenuation etc., can be synthesized by proper choice of corrugation pitch, coupling coefficient, filter length, and the location of π/2-phase shift sections. This method is relatively simple as compared to the previous works. Besides, it allows to optimize certain criteria

Published in:

Lightwave Technology, Journal of  (Volume:13 ,  Issue: 8 )