Particle swarm optimized ultra-compact polarization beam splitter on silicon-on-insulator

Liang, 2010, Recent progress in lasers on silicon, Nat. Photonics, 4, 511, 10.1038/nphoton.2010.167 Reed, 2010, Silicon optical modulators, Nat. Photonics, 4, 518, 10.1038/nphoton.2010.179 Nagarajan, 2005, Large-scale photonic integrated circuits, Ieee J. Sel. Top. Quantum Electron., 11, 50, 10.1109/JSTQE.2004.841721 Almeida, 2004, All-optical control of light on a silicon chip, Nature, 431, 1081, 10.1038/nature02921 Manolatou, 1999, High density integrated optics, J. Lightwave Technol., 17, 1682, 10.1109/50.788575 Barwicz, 2007, Polarization-transparent microphotonic devices in the strong confinement limit, Nat. Photonics, 1, 57, 10.1038/nphoton.2006.41 Yang, 2009, Ultrashort polarization splitter using two-mode interference in silicon photonic wires, Ieee Photonics Technol. Lett., 21, 432, 10.1109/LPT.2009.2013638 Hosseini, 2011, Ultracompact and fabrication-tolerant integrated polarization splitter, Opt. Lett., 36, 4047, 10.1364/OL.36.004047 Yin, 2015, CMOS-compatible and fabrication-tolerant MMI-based polarization beam splitter, Opt. Commun., 335, 48, 10.1016/j.optcom.2014.08.060 Liang, 2005, Integrated polarization beam splitter in high index contrast silicon-on-insulator waveguides, Ieee Photonics Technol. Lett., 17, 393, 10.1109/LPT.2004.839462 Dai, 2012, Compact polarization beam splitter using an asymmetrical Mach–Zehnder interferometer based on silicon-on-insulator waveguides, IEEE Photonics Technol. Lett., 24, 673, 10.1109/LPT.2012.2184530 Pérez-Galacho, 2013, Integrated polarization beam splitter with relaxed fabrication tolerances, Opt. Express, 21, 14146, 10.1364/OE.21.014146 Cheng, 2015, Horizontal slot waveguides for polarization branching control, Appl. Opt., 54, 436, 10.1364/AO.54.000436 Chen, 2015, Study on compact polarization beam splitters based on directional coupling in Bragg reflection waveguides, Appl. Opt., 54, 3624, 10.1364/AO.54.003624 Dai, 2011, Ultrashort broadband polarization beam splitter based on an asymmetrical directional coupler, Opt. Lett., 36, 2590, 10.1364/OL.36.002590 Dai, 2012, Silicon polarization beam splitter based on an asymmetrical evanescent coupling system with three optical waveguides, J. Light. Technol., 30, 3281, 10.1109/JLT.2012.2218217 Dai, 2011, Novel ultra-short and ultra-broadband polarization beam splitter based on a bent directional coupler, Opt. Express, 19, 18614, 10.1364/OE.19.018614 Wang, 2013, Design of a compact polarization splitter composed of a multiple-slotted waveguide and a silicon nanowire, J. Opt., 15, 035501, 10.1088/2040-8978/15/3/035501 Ying, 2015, Ultracompact and broadband polarization beam splitter based on polarization-dependent critical guiding condition, Opt. Lett., 40, 2134, 10.1364/OL.40.002134 Xu, 2016, Design of a compact and integrated TM-rotated/TE-through polarization beam splitter for silicon-based slot waveguides, Appl. Opt., 55, 611, 10.1364/AO.55.000611 Guan, 2013, Ultracompact and broadband polarization beam splitter utilizing the evanescent coupling between a hybrid plasmonic waveguide and a silicon nanowire, Opt. Lett., 38, 3005, 10.1364/OL.38.003005 Shen, 2015, An integrated-nanophotonics polarization beamsplitter with 2.4× 2.4 μm 2 footprint, Nat. Photonics, 9, 378, 10.1038/nphoton.2015.80 Lu, 2013, Nanophotonic computational design, Opt. Express, 21, 13351, 10.1364/OE.21.013351 Niederberger, 2014, Sensitivity analysis and optimization of sub-wavelength optical gratings using adjoints, Opt. Express, 22, 12971, 10.1364/OE.22.012971 Piggott, 2014, Inverse design and implementation of a wavelength demultiplexing grating coupler, Sci. Rep., 4, 10.1038/srep07210 Piggott, 2015, Inverse design and demonstration of a compact and broadband on-chip wavelength demultiplexer, Nat. Photonics, 9, 374, 10.1038/nphoton.2015.69 Liang, 2005, Integrated polarization beam splitter in high index contrast silicon-on-insulator waveguides, Ieee Photonics Technol. Lett., 17, 0393, 10.1109/LPT.2004.839462 Eberhart, 2018, A new optimizer using particle swarm theory, 39 Oskooi, 2010, MEEP: A flexible free-software package for electromagnetic simulations by the FDTD method, Comput. Phys. Commun., 181, 687, 10.1016/j.cpc.2009.11.008 Li, 1980, Refractive index of silicon and germanium and its wavelength and temperature derivatives, J. Phys. Chem. Ref. Data, 9, 561, 10.1063/1.555624 Malitson, 1965, Interspecimen comparison of the refractive index of fused silica, Josa, 55, 1205, 10.1364/JOSA.55.001205 Valle, 1998, Polarization selection and sensitivity of external cavity vertical-cavity surface-emitting laser diodes, Ieee Photonics Technol. Lett., 10, 639, 10.1109/68.669220 Xu, 2006, Cascaded silicon micro-ring modulators for WDM optical interconnection, Opt. Express, 14, 9431, 10.1364/OE.14.009431 Hsu, 2016, 8.13 μm in length and CMOS compatible polarization beam splitter based on an asymmetrical directional coupler, Appl. Opt., 55, 3313, 10.1364/AO.55.003313 Zhang, 2016, High-extinction-ratio silicon polarization beam splitter with tolerance to waveguide width and coupling length variations, Opt. Express, 24, 6586, 10.1364/OE.24.006586