A new technique for generating negative coefficients in photonic signal processors based on dual-input and dual-output intensity modulator sagnac interferometers

Author

Chan, E.H.W. ; Minasian, R.A.

Author_Institution

Sch. of Electr. & Inf. Eng., Univ. of Sydney, NSW

Volume

18

Issue

11

fYear

2006

fDate

6/1/2006 12:00:00 AM

Firstpage

1252

Lastpage

1254

Abstract

New structures that can realize bias drift-free dual-input and dual-output intensity modulators, and which can generate negative coefficients in photonic signal processors, are presented. They are based on a Sagnac loop comprising a travelling-wave optical phase modulator, together with a routing structure that gives outputs with opposite radio-frequency phases. Results using the dual-input mode of operation demonstrate a new technique for generating negative coefficients in an all-optical microwave photonic filter

Keywords

Sagnac interferometers; intensity modulation; microwave filters; microwave photonics; optical filters; optical information processing; optical modulation; phase modulation; Sagnac interferometer; all-optical microwave photonic filter; dual-input intensity modulator; dual-output intensity modulator; negative coefficients; photonic signal processor; radio-frequency phase; routing structure; travelling-wave optical phase modulator; Intensity modulation; Optical filters; Optical interferometry; Optical modulation; Phase modulation; Radio frequency; Routing; Sagnac interferometers; Signal generators; Signal processing; Intensity modulation; microwave filters; optical modulation; optical signal processing;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2006.875337

Filename

1634560