title: Integrated photonic threshold comparator based on square-wave synthesis.
abstract: A photonic threshold comparator is presented. A step-like electrical-to-optical (E/O) response is obtained by employing Fourier series synthesis in which a set of sine-wave responses of different amplitudes and phases are superimposed according to the Fourier series representation of a square-wave. The proposed comparator does not rely on optical material non-linearity; rather it consists of multimode interference (MMI) couplers and phase shifters.
authors.affiliation: School of Electrical Engineering, Faculty of Engineering, Tel-Aviv University, Tel-Aviv, 69978, Israel. syos@eng.tau.ac.il
authors.forename: Yossef
authors.initials: Y
authors.lastname: Ehrlichman
authors.forename: Ofer
authors.initials: O
authors.lastname: Amrani
authors.forename: Shlomo
authors.initials: S
authors.lastname: Ruschin
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D012031:Refractometry / Q000295:instrumentation*; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D020349:Surface Plasmon Resonance / Q000295:instrumentation*; D018511:Systems Integration