QUEBEC, Nov. 1 -- EXFO Electro-Optical Engineering Inc. engineers Andre Girard, senior scientific adviser, and Peter Clark, technology manager, are visiting nine European cities for the first leg of an EXFO-sponsored international technology seminar tour. Through Dec. 4, the team is visiting Zurich; Paris; Lannion, France; Birmingham, UK; Stockholm; Frankfurt; Milan; Madrid and Tel Aviv. Seminar topics include DWDM passive component testing, polarization gain dependence in Raman amplifiers, protocol testing, the optimization of curing techniques for optoelectronic packages, polarization mode dispersion, optical signal-to-noise ratio in WDM systems and simulated Brillouin scattering.