Compact Broadband Polarization Beam Splitter Based on Multimode Interference Coupler With Internal Photonic Crystal for the SOI Platform

Xu, Luhua; Wang, Yun; El-Fiky, Eslam; Deng, Mao; Kumar, Amar; Xing, Zhenping; Saber, Ghulam; Jacques, Maxime; Plant, David V.

doi:10.1109/jlt.2018.2890718

Cited by 77 publications

(25 citation statements)

References 67 publications

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“…In order to address these issues, the polarization beam splitter, as an essential device, which can separate two orthogonal polarization modes, is highly desired. Up to now, a large number of polarization beam splitters in different configurations, such as multimode interference couplers [4], [5], directional couplers [6], [7], dielectric metamaterials [8], and Mach-Zehnder interferometers [9], have been demonstrated on silicon-on-insulator (SOI) platforms. Although these silicon-based polarization beam splitters with good performance can be achieved, they do not have dynamically reconfigurable properties.…”

Section: Introductionmentioning

confidence: 99%

Switchable Polarization Beam Splitter Based on GST-on-Silicon Waveguides

Dai

et al. 2020

IEEE Photonics J.

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A switchable polarization beam splitter utilizing GST-on-silicon waveguides is introduced and comprehensively investigated in this paper. Based on the phase matching and mode hybridization, structural parameters of the presented device are optimized by using the particle swarm optimization algorithm and finite difference time domain method, so that the output fundamental transverse-electric (TE 0) and transverse-magnetic (TM 0) modes can be switched by controlling the phase state of GST and the device exhibits broad bandwidth, low crosstalk, and high polarization extinction ratio. For the designed device with the amorphous GST, the crosstalk is lower than −23.40 dB and the polarization extinction ratio is larger than 21.35 dB over the C-band. In the case of the crystalline GST, within the C-band, the crosstalk of less than −27.37 dB and the polarization extinction ratio of greater than 21.37 dB are achieved.

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Section: Introductionmentioning

confidence: 99%

Switchable Polarization Beam Splitter Based on GST-on-Silicon Waveguides

Dai

et al. 2020

IEEE Photonics J.

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“…PBSs have been proposed on SOI platform using different approaches, such as Mach–Zehnder interferometers (MZI) [22–25], directional couplers (DC) [26–28], photonic crystals [29, 30] and multi‐mode interferometers (MMI) [31–34], among others. Regarding silicon nitride platforms, there are only four reported PBSs.…”

Section: Introductionmentioning

confidence: 99%

Silicon nitride polarisation beam splitters: a review

Tosi

Fasciszewki

Rossini

et al. 2020

IET Optoelectronics

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In this work, the authors review different design setups of polarisation beam splitters (PBSs) developed in Si3N4 platforms. They analyse different approaches based on directional couplers and interferometers. Then the authors present the design and simulation results of a PBS based on two cascaded multi‐mode interferometers that operate in the whole C‐band. Finally, the authors compare the devices in terms of insertion loss, extinction ratio, bandwidth, footprint and fabrication tolerances.

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“…Recently, silicon photonics based polarisation and mode (De)MUXs have been extensively reported for on-chip PDM and MDM sub-systems, respectively, which can yield ultra-compact, CMOS-compatible, and low-cost components 4,5 . Two approaches, mode evolution and mode coupling have been proposed to realise both the polarisation and mode (De)MUXs 6,7 .…”

Section: Introductionmentioning

confidence: 99%

Compact silicon 10-mode multi/demultiplexer for hybrid mode- and polarisation-division multiplexing system

Jiang

Miao

2019

Sci Rep

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To further increase the capacity of the optical transmission system, the hybrid mode- and polarisation-division multiplexing (MDM-PDM) technology has been proved to be an efficient approach by multiplexing dual polarisations for each orthogonal eigen mode. A hybrid (de)multiplexer [(De)MUX] is one of the most important fabrics for the hybrid MDM-PDM networks. A compact silicon 10-mode hybrid (De)MUX is proposed based on three cascaded asymmetric directional couplers (ADCs) based sections, three adiabatic tapers, and a polarisation beam splitter (PBS). The phase-matching conditions can be achieved by varying the widths of the bus waveguides for the TM modes and then by varying the widths of the access waveguides for the TE modes. The simulated results show that a compact total coupling length for TM1 ~ TM3 and TE1 ~ TE5 modes can be achieved to be 55.4 μm. In addition, the total loss of the proposed hybrid (De)MUX can be reduced benefitting from the fewer tapers compared with the conventional cascaded ADCs. The PBS is also optimised with a compact length of 7.0 μm and high extinction ratios of 32.9 dB and 15.4 dB for the TM0 and TE0 modes, respectively.

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Compact Broadband Polarization Beam Splitter Based on Multimode Interference Coupler With Internal Photonic Crystal for the SOI Platform

Cited by 77 publications

References 67 publications

Switchable Polarization Beam Splitter Based on GST-on-Silicon Waveguides

Switchable Polarization Beam Splitter Based on GST-on-Silicon Waveguides

Silicon nitride polarisation beam splitters: a review

Compact silicon 10-mode multi/demultiplexer for hybrid mode- and polarisation-division multiplexing system

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