Abstract
AbstractOptimization of the optical modulator chirp measurement technique using differential frequency beating is presented in this paper. The performance of the chirp measurement technique is studied in terms of the measurement range, sensitivity, and resonant frequency as the accumulated chromatic dispersion (CD) in the fiber is varied. Based on the mathematical model and experimental and simulation results, the technique's measurement range and sensitivity increase with reduced accumulated CD in the fiber. However, the resonant frequencies increase with reduced accumulated CD. The chirp measurement technique is optimized at an accumulated CD of ∼600 ps/nm, with a measurement range of ±4.75, maximum sensitivity of 3.3 GHz, and maximum resonant frequency of 14.28 GHz. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 2306–2309, 2007; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.22718
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