title: Enhanced monolithically integrated coherent 120° downconverter with high fabrication yield.
abstract: Conventional monolithically integrated 90° downconverter suffers from hardware-induced non-linear constellation distortion, which gets worse far away from the central wavelength or when fabrication errors are taken into account. To overcome these problems, a 120° monolithically integrated downconverter with full compensation of hardware non-idealities has been proposed. It is numerically demonstrated that, in a realistic scenario exposed to the combined effects of fabrication tolerances and limited ADC resolution, this approach exhibits a significantly better signal dynamic range and a remarkable improvement of fabrication yield.
authors.affiliation: Departamento Ingeniería de Comunicaciones, ETSI Telecomunicación, Universidad de Málaga 29071 Málaga, Spain. reyes@ic.uma.es
authors.forename: P J
authors.initials: PJ
authors.lastname: Reyes-Iglesias
authors.forename: A
authors.initials: A
authors.lastname: Ortega-Moñux
authors.forename: I
authors.initials: I
authors.lastname: Molina-Fernández
mesh_terms: D004867:Equipment Design; D019544:Equipment Failure Analysis; D055096:Optical Devices; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*