A New Method for Chromatic Dispersion Measurement of WDM Components Using Photonic Microwave Technique

Xiaoke YI  Chao LU  Fang WEI  Wen De ZHONG  Yixin WANG  

IEICE TRANSACTIONS on Electronics   Vol.E86-C   No.7   pp.1359-1365
Publication Date: 2003/07/01
Online ISSN: 
Print ISSN: 0916-8516
Type of Manuscript: Special Section PAPER (Special Issue on Recent Progress in Microwave and Millimeter-wave Photonics Technologies)
Category: Measurements Techniques
optical measurement,  chromatic dispersion,  relative group delay,  photonic microwave technique,  

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In the paper, we propose a new method for chromatic dispersion measurement of WDM components in both transmission and reflection, employing photonic microwave technology. The dispersion can be determined by measuring the frequency spectrum range change of the microwave notch filter. The method features the advantages of low-cost and simplicity. Experimental results demonstrate that our setup is capable of measuring relative group delay with better than 1 ps time resolution and the measurement results show a good agreement with that measured by the conventional phase-shift technique.