Ultra-compact broadband higher order-mode pass filter fabricated in a silicon waveguide for multimode photonics

Guan, Xiaowei; Ding, Yunhong; Frandsen, Lars Hagedorn

doi:10.1364/ol.40.003893

Cited by 73 publications

(39 citation statements)

References 20 publications

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“…[72], which are building blocks for mode-division multiplexing (MDM) systems. A 15.0-μm-long TE1 mode pass filter exhibits an extinction ratio of ∼48 dB and an insertion loss of ∼1.8 dB at 1550 nm.…”

Section: Theoretical Foundations and Application Of Photonic Crystalsmentioning

confidence: 99%

1D Photonic Crystals: Principles and Applications in Silicon Photonics

Han¹

2018

Theoretical Foundations and Application of Photonic Crystals

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One-dimension (1D) photonic crystals have been widely used in silicon photonics due to its simple structure and multiple working regimes: diffraction, Bragg reflection, and subwavelength regimes. Thanks to recent development of photonic technologies and highresolution lithography, many 1D photonic crystal-assisted silicon integrated devices have been proposed and demonstrated to further increase integration density and improve device performance. This chapter first presents some fundamentals of 1D photonic crystals. An overview of the applications of 1D photonic crystals in silicon photonics is then given including grating couplers, waveguide crossings, multimode interference couplers, polarization-independent directional couplers, hybrid lasers, polarizers, and high-order mode filters, among others. Particular attention is paid to providing insight into the design strategies for these devices.

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Section: Theoretical Foundations and Application Of Photonic Crystalsmentioning

confidence: 99%

1D Photonic Crystals: Principles and Applications in Silicon Photonics

Han¹

2018

Theoretical Foundations and Application of Photonic Crystals

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“…Traditional mode lters are mainly polarizing beam-splitting prisms based on the birefringence effect of natural crystals 10 and waveguide mode lters. 11,12 Compared to traditional mode lters, graphene lm-integrated optical waveguide lters possess high extinction ratios and broadband properties because of the excellent optical absorption effects of graphene, which can alternatively serve as transverse magnetic (TM)-pass or transverse electric (TE)-pass lters. Thus, graphene-based mode lters (GBMFs) have been used in devices such as mode lters and broadband mode division multiplexing (MDM) transmission systems.…”

Section: Introductionmentioning

confidence: 99%

Thermal tuning of graphene-embedded waveguide filters based on the polymer–silica hybrid structure

et al. 2018

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“…In ref. 7, the slot waveguide supporting supermodes is not compatible with conventional multimode waveguide, disabling the integration compatibility with other multimode devices based on conventional mode, such as higher order-mode pass filter12. Furthermore, the slot waveguide is difficult to achieve low propagation loss1314, and must be carefully etched to form a lower and uniform gap along the transmission path.…”

mentioning

confidence: 99%

An ultra-low crosstalk and broadband two-mode (de)multiplexer based on adiabatic couplers

Sun

et al. 2016

Sci Rep

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A novel adiabatic couplers (ACs) based broadband and fabrication-tolerant two-mode multiplexer (MUX) is designed using silicon-on-insulator (SOI) platform. Being different from the previously reported ACs-based scheme, the converted and multiplexed signals are on conventional modes, rather than supermodes. The experimental results are in good agreement with the simulations. Over a wavelength range of 75 nm measured, the crosstalk is lower than −20 dB, and the insertion loss is ~1 dB. The eye diagram and bit error rate measurements validate the good performance of the proposed mode MUX. The investigation on fabrication tolerance indicates reasonable performance degradation for a large gap deviation from −30 to 30 nm and etching depth deviation from −50 to 50 nm.

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Ultra-compact broadband higher order-mode pass filter fabricated in a silicon waveguide for multimode photonics

Cited by 73 publications

References 20 publications

1D Photonic Crystals: Principles and Applications in Silicon Photonics

1D Photonic Crystals: Principles and Applications in Silicon Photonics

Thermal tuning of graphene-embedded waveguide filters based on the polymer–silica hybrid structure

An ultra-low crosstalk and broadband two-mode (de)multiplexer based on adiabatic couplers

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