Ultra-broadband, compact, low-loss 3-dB power splitter using adiabatic subwavelength grating in silicon-on-insulator

Xiang Liu; Yingxuan Zhao

doi:10.1117/12.2690210

17 August 2023 Ultra-broadband, compact, low-loss 3-dB power splitter using adiabatic subwavelength grating in silicon-on-insulator

Xiang Liu, Yingxuan Zhao

Author Affiliations +

Proceedings Volume 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023); 1275722 (2023) https://doi.org/10.1117/12.2690210
Event: 3rd International Conference on Laser, Optics and Optoelectronic Technology (LOPET 2023), 2023, Kunming, China

Abstract

We propose an ultra-broadband, compact size and low loss 3-dB adiabatic subwavelength grating-based power splitter based on the silicon-on-insulator platform. Simulation results show that our proposed device has an operating bandwidth of 250 nm, covering the wavelength range from 1400 to 1650 nm, while the device size is reduced to 11 μm and the excess loss is as low as 0.22 dB. Compatible with mature CMOS process, our proposed subwavelength grating-based power splitter shows excellent potential for large-scale photonic integrated circuits.

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Xiang Liu and Yingxuan Zhao "Ultra-broadband, compact, low-loss 3-dB power splitter using adiabatic subwavelength grating in silicon-on-insulator", Proc. SPIE 12757, 3rd International Conference on Laser, Optics, and Optoelectronic Technology (LOPET 2023), 1275722 (17 August 2023); https://doi.org/10.1117/12.2690210

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KEYWORDS

Waveguides

Silicon

Electroluminescence

Fabrication

Dispersion

Photonic integrated circuits

Tolerancing

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