Title

A Photonic Method for Measuring the AM Noise of Periodic Electrical Signals

Authors

Authors

D. Mandridis; I. Ozdur; M. Akbulut;P. J. Delfyett

Comments

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Abbreviated Journal Title

IEEE Photonics Technol. Lett.

Keywords

Amplitude modulation (AM) noise; demultiplexing; optical communication; Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

In this work, we demonstrate mode partition noise in the radio-frequency spectra of periodic signals generated using electrical pattern generators that are often used in digital optical communications and error testing. This effect makes the measurement of the amplitude modulation noise of the repetitive signal through its single sideband (SSB) power spectral density (PSD) at its fundamental frequency inaccurate. This is demonstrated for a square wave, where the dependence of the SSB PSD on the duty cycle of the signal is experimentally shown. To alleviate this ambiguity, we propose and experimentally demonstrate a photonic up-convert and down-convert method that results in invariant SSB power spectra at the signal's fundamental frequency.

Journal Title

Ieee Photonics Technology Letters

Volume

22

Issue/Number

11

Publication Date

1-1-2010

Document Type

Article

Language

English

First Page

790

Last Page

792

WOS Identifier

WOS:000277342800011

ISSN

1041-1135

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