A new, low-cost, high-efficiency photonic integrated circuit

https://techxplore.com/news/2024-05-high-efficiency-photonic-circuit.html

"scalable, low cost wafer-bonding 2D lithium tantalate, masked with diamond-like carbon... etched optical waveguides, modulators, high quality factor microresonators, achieved combining deep UV photolithography and dry-etching, optical loss rate 5.6 dB/m at telecom wavelength... electro-optic Mach-Zehnder modulator of high-speed optical fiber communication with half-wave voltage-length product of 1.9 V cm, electro-optical bandwidth 40 GHz... parallel coherent LiDAR, photonic computing"

Related: A manufacturable platform for photonic quantum computing
https://arxiv.org/abs/2404.17570