Simulation of an Ultra-Compact Multimode Interference Power Splitter Based on Kerr Nonlinear Effect

Tajaldini, Mehdi; Jafri, Mohd Zubir Mat

doi:10.1109/jlt.2014.2302032

Cited by 22 publications

(8 citation statements)

References 32 publications

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“…Talbot imaging allows to form multiport couplers with well defined amplitude and phase ratios that offer improved performance compared to ybranches and directional couplers [12,13]. MMI couplers are used in a wide variety of waveguide devices [1,10,[14][15][16][17][18], and have been implemented in a broad range of material platforms [19][20][21][22]. However, until very recently, the same classical structure, similar to the one shown in Fig.…”

mentioning

confidence: 99%

Ultra‐broadband nanophotonic beamsplitter using an anisotropic sub‐wavelength metamaterial

Halir

Cheben

Luque‐González

et al. 2016

Laser & Photonics Reviews

163

113

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Nanophotonic beamsplitters are fundamental building blocks in integrated optics, with applications ranging from high speed telecom receivers to biological sensors and quantum splitters. While high-performance multiport beamsplitters have been demonstrated in several material platforms using multimode interference couplers, their operation bandwidth remains fundamentally limited. Here, we leverage the inherent anisotropy and dispersion of a sub-wavelength structured photonic metamaterial to demonstrate ultra-broadband integrated beamsplitting. Our device, which is three times more compact than its conventional counterpart, can achieve highperformance operation over an unprecedented 500 nm design bandwidth exceeding all optical communication bands combined, and making it one of the most broadband silicon photonics components reported to date. Our demonstration paves the way toward nanophotonic waveguide components with ultrabroadband operation for next generation integrated photonic systems.

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mentioning

confidence: 99%

Ultra‐broadband nanophotonic beamsplitter using an anisotropic sub‐wavelength metamaterial

Halir

Cheben

Luque‐González

et al. 2016

Laser & Photonics Reviews

163

113

View full text Add to dashboard Cite

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“…Typically, the beam propagation method (BPM) is used to investigate MMI devices [17][18]. Many other applications, including filters [19], temperature sensors [20], splitters [21][22], and couplers [23], make use of MMI devices. These phenomena can happen because the waveguide materials along the boundaries have different reflecting indices.…”

Section: Introductionmentioning

confidence: 99%

A silicon nitride MMI O-band power combiner based on slot waveguide structures

Malka

2023

Integrated Optics: Design, Devices, Systems and Applications VII

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Optical transceivers that function under a high-speed rate condition are demanded to have more optical power ability to overcome the power losses which is a cause of the need of using a larger RF line connected to the Mach-Zehnder modulator for fulfilling the high-speed condition. The classic solution to this problem is to use a better power laser with a high level of 120 milliwatts. However, this solution can be complicated for a photonic chip circuit due to the high cost and nonlinear effects, which can increase the system noise. Therefore, we propose a better solution to increase the power level using a 4x1 power combiner which is based on multimode interference using a silicon nitride slot waveguide structure. Results show that the combiner can function well over the O-band spectrum with high combiner efficiency of at least 98.1% and after a short light coupling propagation of 28.8 μm. This new study shows how it is possible to obtain a transverse electric mode solution for four Gaussian coherent sources using Si3N4 slot waveguides technology. This new technology can be utilized for combining multiple coherent sources that work with a photonic chip at the Oband range.

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“…Typically, the beam propagation method (BPM) is used to investigate MMI devices [ 21 , 22 ]. Many other applications, including filters [ 23 ], temperature sensors [ 24 ], splitters [ 25 , 26 ], and couplers [ 27 ], make use of MMI devices.…”

Section: Introductionmentioning

confidence: 99%

Combining Four Gaussian Lasers Using Silicon Nitride MMI Slot Waveguide Structure

2022

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Transceivers that function under a high-speed rate (over 200 Gb/s) need to have more optical power ability to overcome the power losses which is a reason for using a larger RF line connected to a Mach–Zehnder modulator for obtaining high data bitrate communication. One option to solve this problem is to use a complex laser with a power of over 100 milliwatts. However, this option can be complicated for a photonic chip circuit due to the high cost and nonlinear effects, which can increase the system noise. Therefore, we propose a better solution to increase the power level using a 4 × 1 power combiner which is based on multimode interference (MMI) using a silicon nitride (Si3N4) slot waveguide structure. The combiner was solved using the full-vectorial beam propagation method (FV-BPM), and the key parameters were analyzed using Matlab script codes. Results show that the combiner can function well over the O-band spectrum with high combiner efficiency of at least 98.2% after a short light coupling propagation of 28.78 μm. This new study shows how it is possible to obtain a transverse electric mode solution for four Gaussian coherent sources using Si3N4 slot waveguide technology. Furthermore, the back reflection (BR) was solved using a finite difference time-domain method, and the result shows a low BR of 40.15 dB. This new technology can be utilized for combining multiple coherent sources that work with a photonic chip at the O-band range.

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Simulation of an Ultra-Compact Multimode Interference Power Splitter Based on Kerr Nonlinear Effect

Cited by 22 publications

References 32 publications

Ultra‐broadband nanophotonic beamsplitter using an anisotropic sub‐wavelength metamaterial

Ultra‐broadband nanophotonic beamsplitter using an anisotropic sub‐wavelength metamaterial

A silicon nitride MMI O-band power combiner based on slot waveguide structures

Combining Four Gaussian Lasers Using Silicon Nitride MMI Slot Waveguide Structure

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