Design and analysis of polarization independent MMI based power splitter for PICs

Hassan, Shamsul; Chack, Devendra

doi:10.1016/j.mejo.2020.104887

Cited by 22 publications

(10 citation statements)

References 20 publications

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“…For datacom applications such as mode-division multiplexing [16] or multitarget sensing [17], power splitters with broad bandwidths are required. Different power division architectures have been reported based, among others, on symmetric Yjunctions [18,19], multimode interference (MMI) couplers [20][21][22], inverse tapers [23], adiabatic tapers [24], directional and adiabatic couplers [25][26][27], slot waveguides [28] and photonic crystal structures [29][30][31]. MMI devices offer good fabrication tolerances and compact footprints, and their operational bandwidth can be optimized through geometry design [20,21] or partially shallowly etched regions [22].…”

Section: Introductionmentioning

confidence: 99%

Experimental characterization of an ultra-broadband dual-mode symmetric Y–junction based on metamaterial waveguides

Cabo

Vilas

Cheben

et al. 2023

Optics & Laser Technology

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Section: Introductionmentioning

confidence: 99%

Experimental characterization of an ultra-broadband dual-mode symmetric Y–junction based on metamaterial waveguides

Cabo

Vilas

Cheben

et al. 2023

Optics & Laser Technology

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“…There have been numerous demonstrations of asymmetric power splitters, including an asymmetrical Y branch [6], a T-junction structure [7], a photonic crystal power splitter [8], a circular-to-rectangular polymer-fiber converter [9], an asymmetrical MZI [10], an asymmetrical coupler with phase control sections [11] and the MMI based power splitters [12]. Among these approaches, MMI splitters are the most popular and have been widely investigated for the development of asymmetrical power splitters [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of a dynamically tunable 1× 2 power splitter using MZI configuration in telecom regime

Arik¹,

Akbari²,

Khavasi³

2023

Preprint

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We propose an ultra-broadband, ultra-compact and a dynamically tunable 1×2 power splitter on silicon on Insulator (SOI) platform with 220 nm thick silicon light-guiding layer, using two multimode interference (MMI) couplers connected with graphene-based waveguides as phase-tuning section through a Mach-Zehnder Interferometer (MZI) configuration. First, we theoretically present and demonstrate a novel design for the MMI couplers by combining the plane wave expansion method (PWEM) and the mode expansion conjecture concept. To verify the proposed theory, a center-fed 1×2 MMI coupler and a 2×2 MMI coupler, respectively, as the input and output sections of our proposed device, are designed and simulated. The simulation results achieved by Lumerical FDTD show good agreement with the design theory. Then, a highly tunable graphene-embedded silicon waveguide, for highly efficient modulation of effective mod index (EMI), is duly designed using Lumerical Mode Solutions. As the two MZI arms, a pair of the proposed waveguides is introduced into the middle of the cascaded MMI couplers. Accordingly, the integration properties of the analytically designed MMI couplers and the numerically designed waveguide is demonstrated through our proposed device for the aim of achieving any wanted power splitting ratio. To this end, we consider the case that the real part of the EMI of the waveguide in the lower MZI arm is modulated by varying the graphene Fermi level values, being the same for all the layers belong to the same waveguide, while that of the upper arm is constant. The corresponding power splitting ratio can be dynamically tuned in the range of 0.5:0.5-0.85:0.15. All reported results assume TE polarization. The designed MZI-based splitter possesses a bandwidth of 400nm over the wavelength range from 1.35μm to 1.75μm for various power splitting ratios, maintaining the averaged insertion loss and the averaged power imbalance, respectively, below as low as 0.39dB and 0.48. The overall footprint of the proposed device is also highly small, i.e., about 58μm × 3.5μm.

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“…Photonics is a promising candidate for the substitution of electronic circuits. Photonic devices are immune to external electromagnetic fields, can work at ultra-high speeds without heating, and can be relatively cheap, depending on their setup 1 . Particularly, the development of optical switching is significant for optical communication systems, signal routing, and integrated circuits 2 .…”

Section: Introductionmentioning

confidence: 99%

High-speed silicon waveguide 3-to-8 decoder based on electro-optic effects

Akhmet

Gaziz

Alipbayeva

et al. 2023

Silicon Photonics XVIII

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A high-performance silicon waveguide-based electro-optical 3-to-8 decoder is proposed in this work. Generic 500x220 nm dimensions of the waveguide provide compatibility with other devices and circuits. The length of the active region is 4.5 microns. The n-to-m electro-optical switching circuits utilize both forward and reversed bias NOT gates with a voltage input of -2.5 V and 2.5 V, for logic zero and logic high, respectively. The 3-to-8 decoder showed an input power of the optical signal of 1.26 mW, which is distributed within the circuit, resulting in the maximum output power of approximately 0.3 mW on each of the 8 terminals. 20000 dB/cm mode loss is achieved with a logic input controlled by ±2.5 V. Results show that a data-rate of up to 100 Gbit/s is achieved.

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Design and analysis of polarization independent MMI based power splitter for PICs

Cited by 22 publications

References 20 publications

Experimental characterization of an ultra-broadband dual-mode symmetric Y–junction based on metamaterial waveguides

Experimental characterization of an ultra-broadband dual-mode symmetric Y–junction based on metamaterial waveguides

Design and simulation of a dynamically tunable 1× 2 power splitter using MZI configuration in telecom regime

High-speed silicon waveguide 3-to-8 decoder based on electro-optic effects

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