Optical single-sideband suppressed-carrier modulator for wide-band signal processing

Author

Frankel, Michael Y. ; Esman, Ronald D.

Author_Institution

Div. of Opt. Sci., Naval Res. Lab., Washington, DC, USA

Volume

16

Issue

5

fYear

1998

fDate

5/1/1998 12:00:00 AM

Firstpage

859

Lastpage

863

Abstract

We develop and demonstrate a technique for implementing a wide-band optical single-sideband suppressed-carrier modulator. The technique relies on a dual-electrode traveling wave modulator for sideband suppression and a Sagnac fiber-loop interferometer for carrier suppression. The implementation uses all commercially available components and demonstrates >40 dB optical carrier suppression, and as much as 60 dB unwanted signal sideband rejection across a 6-20 GHz microwave frequency range. The modulator is used to demonstrate broad-band spectral shifting- and inversion across the 3-18 GHz frequency range

Keywords

broadband networks; electro-optical modulation; fibre optic sensors; light interferometers; optical fibre communication; optical information processing; signal processing; 3 to 18 GHz; 6 to 20 GHz; GHz frequency range; GHz microwave frequency range; Sagnac fiber-loop interferometer; broad-band spectral inversion; broad-band spectral shifting; carrier suppression; dual-electrode traveling wave modulator; microwave signal processing; optical carrier suppression; optical signal processing; optical single-sideband suppressed-carrier modulator; unwanted signal sideband rejection; wide-band signal processing; Amplitude modulation; Optical coupling; Optical devices; Optical fiber polarization; Optical interferometry; Optical modulation; Optical signal processing; Radio frequency; Sagnac interferometers; Wideband;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.669019

Filename

669019