Abstract
We demonstrate a novel and simple smart pixel which combines free space optics for the input signal and waveguide configuration for the output beam. Our monolithic smart pixels consist of a threshold switch with high photoconductive gain and a Franz–Keldysh waveguide modulator. The switch provides sufficiently high current to control directly the output beam via the modulator. A high switching contrast of ≳17 dB and a fan-out ≳230 at an optical output power of ≳130 μW has been achieved with our first monolithic smart pixels, which are still far from being optimized.
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