title: High resolution light intensity spectrum analyzer (LISA) based on Brillouin optical filter.
abstract: A high-resolution light intensity spectrum analyzer technique to derive the RF modulation spectrum of optical signals is presented and experimentally confirmed. It uses the XPM nonlinear effect in a dispersion shifted fiber to obtain the light intensity spectrum, and a Brillouin optical filtering method to implement the high resolution spectrometric analysis. Measured RF spectra of PRBS modulated optical signals at 2.5 Gb/s and 10 Gb/s are presented and compared with their corresponding ones obtained in the electrical detection domain to confirm the capabilities of the method.Influence of fiber electrostriction effect is measured and analyzed.
authors.forename: C
authors.initials: C
authors.lastname: Heras
authors.forename: J
authors.initials: J
authors.lastname: Subías
authors.forename: J
authors.initials: J
authors.lastname: Pelayo
authors.forename: F
authors.initials: F
authors.lastname: Villuendas