Welcome to Redfern Integrated Optics (RIO)

RIO is the leading global supplier of single frequency narrow linewidth lasers, modules, and subsystems to the clean energy, security, oil and gas, and test and measurement markets.

RIO’s lasers have ultra-low noise, very narrow linewidth, unparalleled wavelength stability, small size, low power dissipation, Telecom grade lifetime reliability, at affordable prices.

RIO’s Optical Sensing Solutions Can Transform Your Operating Costs...

...with a greener approach to fiber sensing