Patent ID: 8258476

Claim:
A detector for electromagnetic radiation, comprising: a silicon-on-insulator wafer substrate having a surface; a waveguide comprising a material configured to exhibit a nonlinear optical coefficient adjacent said surface of said substrate, said waveguide fabricated in said silicon on said insulator of said silicon-on-insulator wafer, said waveguide having an input port configured to receive an optical signal having a first wavelength as an input optical signal, and an optical output port configured to provide a modulated optical signal as an output optical signal, said waveguide further configured to receive electromagnetic radiation to be detected; said waveguide configured to modulate said input optical signal having said first wavelength in response to received electromagnetic radiation to be detected and to provide said modulated optical signal as said output optical signal; and a optical signal detector configured to detect optical signals having said first wavelength, and configured to provide an output indicative of said received electromagnetic radiation to be detected.