Abstract

Recently, we have demonstrated compact laser-diode-based optoelectronic phase lock loop (OEPLLs) which allow phase locking of microwave oscillators with an optical clock.^1-3 In this paper, we demonstrate phase tracking of microwave signals to an optical clock using an integrated-optic electro-optic modulator (IQM) as the optoelectronic harmonic mixer (OEHM). The IOM is shown to exhibit significantly lower conversion loss from microwave to the IF than the bulk-electro-optic sampler. Furthermore, the fiber-pigtailed IOM is intrinsically compatible to the fiber-optic link.

© 1994 Optical Society of America