Nanowerk March 12, 2019
The nonlinear optical effects which used for manipulating photon frequency are weak and require a very strong laser, which creates “noise”. To better control light particles researchers at Yale University have created a device that consists of a series of waveguides. Light and microwave sent through the device wends its way through alternating suspended and clamped waveguides on a single chip. This creates a positive and negative effect, corresponding to the microwave. The light spirals in each of the waveguides to prolong the interaction and maximize efficiency. The deeper the modulation, the better you can control the photon. Mechanical vibrations modulate the optical phase in each suspended waveguide spiral essentially ‘shaking’ the photons, dispersing them as if they were grains of sand. The research makes telecommunications and precision time-keeping more efficient…read more. TECHNICAL ARTICLEÂ