Monolithically integrated optical frequency converter and amplitude modulator in LiNbO_3 fabricated by femtosecond laser pulses

摘要

We report on the monolithic integration of frequency converter and amplitude modulator in a single lithium niobate (LiNbO_3) chip by the use of focussed ultra-short laser pulses. The waveguiding structures are obtained by femtosecond-laser induced internal modification and the electrodes are ablated out of a gold-layer sputtered onto the sample surface.