Coherence-Controlled mm-Wave Generation Using a Frequency-Shifting Recirculating Delay Line

Author

Pulikkaseril, Cibby ; Hanham, Stephen M. ; Shaw, Robert ; Minasian, Robert A. ; Bird, Trevor S.

Author_Institution

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

Volume

28

Issue

7

fYear

2010

fDate

4/1/2010 12:00:00 AM

Firstpage

1071

Lastpage

1078

Abstract

A photonic technique based on optical heterodyning for the generation of microwave and millimeter-wave signals is presented in this paper. Coherence control of a comb of time-delayed and frequency-shifted optical signals is used to selectively beat multiple optical signals together to produce a stable, spectrally pure microwave, or millimeter-wave signal. This approach is demonstrated by generating signals at 11.25 and 30 GHz. The linewidth of the generated signal is independent of the linewidth of the optical source employed, and is shown to be less than 100 Hz with sideband suppression >30 dB.

Keywords

Mach-Zehnder interferometers; delays; microwave generation; microwave photonics; millimetre wave generation; optical communication equipment; optical control; optical couplers; optical delay lines; optical noise; photodetectors; spectral line breadth; Mach-Zehnder interferometer; coherence-controlled mm-wave signal generation; frequency 11.25 GHz; frequency 30 GHz; frequency-shifted optical signal; frequency-shifting recirculating delay line; microwave generation; optical heterodyning; phase-induced intensity noise; sideband suppression ratio; signal linewidth; time-delayed optical signal; Microwave photonics; optical millimeter-wave (mm-wave) generation;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/JLT.2009.2038725

Filename

5357379