Design of a Power Splitter Based on a 3D MMI Coupler at the Fibre-Tip

Ziman, Martin; Feiler, Martin; Mizera, Tomas; Kuzma, Anton; Pudiš, Dušan; Uherek, F.

doi:10.3390/electronics11182815

Cited by 2 publications

(1 citation statement)

References 33 publications

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“…With the development of new threedimensional (3D) technologies in recent years, new possibilities for the preparation of optical splitters are available. We also observed a development from planar to 3D concepts [2,10,11]. Novel 3D treatments were applied in Y-branch splitters and also in MMI splitters [2,10,12].…”

Section: Introductionmentioning

confidence: 69%

1 x 9 MMI splitter prepared by 3D lithography and characterized by NSOM

Gaso

Mizera²,

Pudiš³

et al. 2022

22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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We proposed, simulated and fabricated a new type of three-dimensional (3D) optical splitter based on multimode interference (MMI). Splitter was designed for the wavelength of 1550 nm and the input signal is divided into 9 outputs. The multimode waveguide part of the splitter was designed as a block with square basis of cross-section of 26 x 26 μm2 and length of 211 μm. We used the IP-Dip polymer as a standard material for 3D laser lithography. We present the design, simulated and measured optical field distribution in the output of the MMI splitter and its direct integration on the single mode optical fiber.

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Section: Introductionmentioning

confidence: 69%

1 x 9 MMI splitter prepared by 3D lithography and characterized by NSOM

Gaso

Mizera²,

Pudiš³

et al. 2022

22nd Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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WDM C-band four channel demultiplexer using cascaded multimode interference on SiN strip waveguide structure

Malka

2024

EPJ Web Conf.

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Back reflection challenges significantly constrain the efficiency of optical communication networks employing dense wavelength division multiplexing (DWDM) technology, particularly those based on Silicon (Si) Multimode Interference (MMI) waveguides. To mitigate this limitation, we present a novel 1×4 optical demultiplexer design using MMI within a Silicon-Nitride (SiN) strip waveguide configuration, operating within the C-band spectrum. Our design was optimized using AI-enhanced RSoft-CAD simulations that combined the Beam Propagation Method (BPM) and Finite-Difference Time-Domain (FDTD) techniques, integrated with convolutional neural network (CNN) machine learning algorithms. The simulation results demonstrate that the proposed device efficiently transmits four channels with 10 nm spacing in the C-band, showing low power loss ranging from 1.98-2.35 dB, a broad bandwidth of 7.68-8.08 nm, and excellent crosstalk suppression between 20.8-23.4 dB. Leveraging the low refractive index of SiN, we achieve ultra-low back reflection of 40.58 dB without requiring specialized angled MMI designs, which are often necessary in Si-based MMI technology. Consequently, this SiN-based MMI demultiplexer provides an effective solution for DWDM systems, enabling high data transmission rates with minimal back reflection in optical communication networks.

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Design of a Power Splitter Based on a 3D MMI Coupler at the Fibre-Tip

Cited by 2 publications

References 33 publications

1 x 9 MMI splitter prepared by 3D lithography and characterized by NSOM

1 x 9 MMI splitter prepared by 3D lithography and characterized by NSOM

WDM C-band four channel demultiplexer using cascaded multimode interference on SiN strip waveguide structure

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