Modeling and experiment of 1.55-μm integrated electroabsorption modulator with distributed-feedback laser

The characterization of an integrated electroabsorption modulator with distributed-feedback laser is presented. New experimental data for both the laser and modulator sections are shown. The amplified spontaneous emission spectra of the laser as well as the longitudinal mode profile are characterized, and the transmission spectra of the modulator as a function of bias voltage are measured. We also developed a longitudinal model using the transfer matrix method and coupled-mode theory to explain the experimental data. The amplified spontaneous emission spectra and adiabatic wavelength chirping of the integrated device are measured and modeled using parameters taken from measurements on the individual sections.