Synthesis of all-optical microwave filters using Mach-Zehnder lattices

Author

Cusick, Thomas A. ; Iezekiel, Stavros ; Miles, Robert E. ; Sales, Salvador ; Capmany, José

Author_Institution

Dept. of Electron. & Electr. Eng., Leeds Univ., UK

Volume

45

Issue

8

fYear

1997

fDate

8/1/1997 12:00:00 AM

Firstpage

1458

Lastpage

1462

Abstract

A synthesis algorithm which generates the set of coupling ratios required to produce a desired time-domain window response using an all-optical Mach-Zehnder lattice network Is presented. The analysis assumes incoherent interference of the lightwaves within the structure. The window coefficients are dictated by the coupling ratios of the couplers forming the lattice, leading to a simple structure comprising only passive components. Since its impulse response (IR) is finite, the filter will be stable, and the algorithm is capable of generating a wide range of responses In terms of their extinction ratios and passbands. The theory has been validated by experiment

Keywords

FIR filters; Mach-Zehnder interferometers; lattice filters; microwave filters; optical delay lines; optical directional couplers; time-domain analysis; Mach-Zehnder lattices; all-optical microwave filters; coupling ratios; extinction ratios; finite impulse response; incoherent interference; passive components; synthesis algorithm; time-domain window response; window coefficients; Delay; Finite impulse response filter; IIR filters; Lattices; Marketing and sales; Microwave filters; Optical fiber couplers; Optical filters; Optical network units; Stimulated emission;

fLanguage

English

Journal_Title

Microwave Theory and Techniques, IEEE Transactions on

Publisher

ieee

ISSN

0018-9480

Type

jour

DOI

10.1109/22.618453

Filename

618453