Optical distribution of local oscillators for a rotating antenna

Author

Bibey, M.-B. ; Formont, S. ; Deborgies, F. ; Moronvalle, C. ; Auvray, G. ; Brillman, A.

Author_Institution

Thomson-CSF, France

Volume

2

fYear

2000

fDate

11-16 June 2000

Firstpage

1257

Abstract

Optical LO distribution to a rotating antenna has been studied. An optical demonstrator has been built with four microwave links and one optical digital link. Signals at different wavelengths are travelling in both directions along the same optical fibre. Measurements of additive phase noise show that the required specifications in S- and C-band can be reached: -135 dBc/Hz at 10 kHz offset. Electric isolation between channels and optical feedback inducing degradation of phase noise have also been studied and solutions have been proposed to improve these parameters.

Keywords

microwave photonics; optical fibre communication; phase noise; radar antennas; C-band; S-band; additive phase noise; electric isolation; local oscillators; microwave links; optical LO distribution; optical digital link; optical fibre; rotating antenna; Additive noise; Antenna measurements; Local oscillators; Noise measurement; Optical feedback; Optical fibers; Optical noise; Phase measurement; Phase noise; Wavelength measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest. 2000 IEEE MTT-S International

Conference_Location

Boston, MA, USA

ISSN

0149-645X

Print_ISBN

0-7803-5687-X

Type

conf

DOI

10.1109/MWSYM.2000.863588

Filename

863588