The lithium niobate and BP hybrid waveguide provides a large absorption coefficient of 156 dBµm which is higher than that of the III-VTFLN integrated PD The present device also exhibits a responsivity

The hybrid waveguide consisting of lithium niobate and BP demonstrates a noticeable absorption coefficient of 1.56 dB/µm, surpassing that of the III-V/TFLN integrated PD. Additionally, the device exhibits a responsivity of 2.64 A/W (with an input optical power of 25.1 µW) and an extensive 3 dB bandwidth of 1.97 GHz (at a bias voltage of 1.6 V). These findings suggest that the aforementioned hybrid waveguide is a promising candidate for high-performance photodetection applications.