Angle-Based Parametrization with Evolutionary Optimization for OESCL-Band Y-Junction Splitters
Roy Prosopio-Galarza,
J. Leonidas García-Gonzales,
Freddy Jara,
Maria Armas-Alvarado,
Jorge Gonzalez,
Ruth E. Rubio-Noriega
Affiliations
Roy Prosopio-Galarza
Group of Radiofrequency Microwave and Optics (G-RFMO), National Institute for Research and Training in Telecommunications (INICTEL), National University of Engineering (UNI), Lima 15001, Peru
J. Leonidas García-Gonzales
Computer Engineering Group (CEG), Computer Science Department, University of Engineering and Technology (UTEC), Lima 15001, Peru
Freddy Jara
Group of Radiofrequency Microwave and Optics (G-RFMO), National Institute for Research and Training in Telecommunications (INICTEL), National University of Engineering (UNI), Lima 15001, Peru
Maria Armas-Alvarado
Group of Radiofrequency Microwave and Optics (G-RFMO), National Institute for Research and Training in Telecommunications (INICTEL), National University of Engineering (UNI), Lima 15001, Peru
Jorge Gonzalez
Computer Engineering Group (CEG), Computer Science Department, University of Engineering and Technology (UTEC), Lima 15001, Peru
Ruth E. Rubio-Noriega
Group of Radiofrequency Microwave and Optics (G-RFMO), National Institute for Research and Training in Telecommunications (INICTEL), National University of Engineering (UNI), Lima 15001, Peru
The design of passive photonic devices based on geometry optimization can lead to energy-efficient, small-footprint, and fabrication-ready geometries. In this work, we propose an angle-based parametrization method to optimize Y-junction splitters based on multimode interferometers. The selected figure of merit was the transmittance in the SCL and OESCL optical fiber communication bands. The performances of three optimization methods were compared: (i) particle swarm optimization (PSO), (ii) genetic algorithm (GA), and (iii) the covariance matrix adaptation-evolution strategy (CMA-ES). The results show that CMA-ES parametrization produces similar transmittance results (≤1.5% of difference) to PSO in the first 40 generations. The CMA-ES results are identical in the SCL (1460–1625 nm) and OESCL (1260–1625 nm) bands, whereas the GA and PSO executions are slightly different in terms of the rate and similarity of the figure of merit.
