
Engineers grow optical chips in a Petri dish
June 16 (UPI) -- Researchers in Russia have successfully grown optical chips in a Petri dish. The breakthrough could pave the way for a variety of smaller and more precise optical technologies. Optical chips are made of tiny lasers and waveguides. Lasers inside the optical chips currently deployed by the modern photonics industry rely on infrared emissions. Advertisement In order to build a more compact optical chip, engineers at IMTO University set out to pair microlasers and waveguides that use light in the visible spectrum. Visible light features smaller wavelengths. "The size of a chip depends on the wavelength of its emission," Sergey Makarov, chief researcher with ITMO's department of physics and engineering, said in a news release. Microlasers produce light emissions, while wavegu...