Power-efficient electro-optical single-tone optical-frequency shifter using X-cut Y-propagating lithium tantalate waveguide emulating a rotating half-wave-plate

We demonstrate a single-tone electro-optical frequency shifter based on an X-cut, Y-propagating Zn-diffused lithium tantalate waveguide emulating a rotating half-wave plate achieving 10 dB reduction in power consumption compared to Z-propagating LiNbO 3 counterparts.