All articles tagged with #lithium niobate
ETH Zurich researchers have developed ultra-thin metalenses made from lithium niobate that can convert infrared light into visible light by halving its wavelength, using nanostructures and nonlinear optical effects, with potential applications in security, imaging, and electronics.
Researchers have developed a hybrid wafer stack combining lithium niobate (LiNbO3) and silicon nitride (Si3N4) that allows for fast frequency tuning and modulation stability in lasers. The hybrid chip utilizes microresonator structures to achieve laser self-injection locking and voltage-controlled frequency tuning. The study demonstrates the successful application of the hybrid circuit in LiDAR technology and highlights the potential of thin-film LiNbO3 structures in photonics.
Engineers at the Harvard John A. Paulson School of Engineering and Applied Sciences have developed an integrated optical isolator that can improve the performance of optical systems used in telecommunications, microscopy, imaging, and quantum photonics. The isolator, made of lithium niobate, allows light emitted by a laser to propagate unaltered while redirecting reflected light away from the laser. The device offers the best optical isolation performance and competitive metrics in terms of loss, power efficiency, and tunability. The breakthrough could lead to smaller, more efficient optical chips and revolutionize various fields of work.
Scientists at EPFL and IBM have developed a hybrid integrated tunable laser by combining lithium niobate and silicon nitride, which offers low frequency noise and fast wavelength tuning. This laser has potential applications in LiDAR, telecommunications, and quantum computing due to its unique combination of properties. The hybrid platform has the potential to realize integrated transceivers for telecommunications as well as microwave-optical transducers for use in quantum computing.