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

Author

Bakhtazad, A. ; Abiri, Habibollah ; Rahnavard, Mohammed H.

Author_Institution

Dept. of Electr. Eng., Shiraz Univ., Iran

Volume

13

Issue

8

fYear

1995

fDate

8/1/1995 12:00:00 AM

Firstpage

1780

Lastpage

1786

Abstract

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

Keywords

band-pass filters; optical communication equipment; optical couplers; optical losses; optical waveguide filters; optimisation; π/2 phase shifts; π/2-phase shift sections; central wavelength; corrugation pitch; coupling coefficient; filter length; graphical method; minimum attenuation; optimum bandpass optical filter synthesis; periodic corrugated waveguides; ripple factor; selectivity; Approximation methods; Band pass filters; Bandwidth; Circuit synthesis; Frequency response; Gratings; Optical attenuators; Optical filters; Optical sensors; Optical waveguides;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.405324

Filename

405324