Low Noise Figure Microwave Photonic Link

Author

Karim, Adil ; Devenport, Jason

Author_Institution

L-3 Photonics, Carlsbad

fYear

2007

fDate

3-8 June 2007

Firstpage

1519

Lastpage

1522

Abstract

The noise figure of an analog fiber-optic link was reduced to 6 dB at 1 GHz by using a bias-shifted Mach-Zehnder modulator with an optical input power of 1 W. The link noise figure was less than 14 dB for modulation frequencies from 1-18 GHz. This level of performance was achieved without electronic pre-amplification. A linearized microwave photonic link using this noise reduction approach has been demonstrated with a spurious-free dynamic range of 130 dB in a 1 Hz bandwidth.

Keywords

electro-optical modulation; interference suppression; microwave links; microwave photonics; radio-over-fibre; analog fiber-optic link; bandwidth 1 Hz; bias-shifted Mach-Zehnder modulator; electro-optic modulation; frequency 1 GHz to 18 GHz; microwave photonic link; modulation frequency; noise figure; noise figure 130 dB; noise reduction approach; power 1 W; Distributed feedback devices; Noise figure; Optical distortion; Optical feedback; Optical filters; Optical interferometry; Optical modulation; Optical noise; Radio frequency; Voltage; Analog systems; electro-optic modulation; modulation; noise; optical fiber communication; optoelectronic devices;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium, 2007. IEEE/MTT-S International

Conference_Location

Honolulu, HI

ISSN

0149-645X

Print_ISBN

1-4244-0688-9

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2007.380561

Filename

4264130