Utilization of Mach-Zehnder Modulators to Generate Fourth Harmonic Microwave Frequencies - Theory and Experiment

Author

Motamedi, Ali ; Vahldieck, Ruediger

Author_Institution

Laboratory for Lightwave Electronics, Microwaves and Communications (LLiMiC), Department of Electrical and Computer Engineering, University of Victoria, P.O. Box 3055, Victoria, B.C., Canada V8W 3P6

Volume

2

fYear

1997

fDate

8-12 Sept. 1997

Firstpage

1216

Lastpage

1221

Abstract

A Mach-Zehnder modulator biased at quadrature point is used to generate the fourth hannonic of a fundamental frequency while suppressing all the odd harmonics and most importantly the 2nd hannonic by more than 35 dB. The system is tested and verified. A novel method for transmission of modulated data using direct modulation of the laser diode driving the electro-optic modulator is also introduced which results in a modulated microwave signal at the frequency of the fourth hannonic at the output of the receiver. It is shown that the phase noise of the fourth harmxonic frequency is no worse than that for an ideal multiplier. Compared with previous work, this solution simplifies the system implementation considerably.

Keywords

Microwave frequencies; Microwave generation; Microwave theory and techniques; Optical attenuators; Optical filters; Optical interferometry; Optical modulation; Optical receivers; RF signals; Signal generators;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference, 1997. 27th European

Conference_Location

Jerusalem, Israel

Type

conf

DOI

10.1109/EUMA.1997.337964

Filename

4139016