Real-time observation of pulse reshaping using Sr_(0.61)Ba_(0.39)Nb_2O_6 single crystal fiber in a microwave cavity

摘要

Ferroelectric single crystal fiber Sr_(0.61)Ba_(0.39)Nb_2O_6 (SBN) is evaluated for optical pulse engineering in terms of wavelength shifting and pulse compression/expansion through nonlinear optical (Pockels) effect at microwave frequencies. The microwave-photonic interaction was investigated experimentally in a TE_(103) microwave cavity at 10 GHz. It is shown that the frequency component of an optical pulse can be controlled effectively using the SBN single crystal in a microwave cavity without the need of contact electrodes or any interruption to the optical system. The technique may be utilized in several aspects of optical communications such as channel definition and security encoding of the signal, and shows potential for a range of optoelectronic applications.