Title

A Photonic Method For Measuring The Am Noise Of Periodic Electrical Signals

Keywords

Amplitude modulation (AM) noise; Demultiplexing; Optical communication

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. © 2006 IEEE.

Publication Date

5-12-2010

Publication Title

IEEE Photonics Technology Letters

Volume

22

Issue

11

Number of Pages

790-792

Document Type

Article

Personal Identifier

scopus

DOI Link

https://doi.org/10.1109/LPT.2010.2046027

Socpus ID

77951948199 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/77951948199

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