期刊
APPLIED OPTICS
卷 60, 期 16, 页码 4972-4975出版社
OPTICAL SOC AMER
DOI: 10.1364/AO.427739
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资金
- NationalNatural Science Foundation of China [61765003]
This paper presents a subwavelength-grating-assisted 1 x 2 deWMUX based on the principle of multimode interference, successfully outputting 1.55 and 2 µm wavelengths from two different channels. The simulation results demonstrate that the designed deWMUX has high contrast, low insertion loss, and wide 1 dB bandwidth at both wavelengths. Additionally, manufacturing tolerances of the device are also studied in the paper.
The wavelength demultiplexer (deWMUX) is an indispensable component for the wavelength diversity system. In this paper, we propose a subwavelength-grating-assisted 1 x 2 deWMUX based on the principle of multimode interference, which aims to output 1.55 and 2 mu m wavelengths from two different channels. The simulation results show that the contrast of the designed deWMUX at both wavelengths is greater than 24 dB, the insertion loss is less than 0.5 dB, and the 1 dB bandwidth is wider than 100 nm. In addition, the manufacturing tolerances of the device are also studied. (C) 2021 Optical Society of America
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