期刊
OPTICS LETTERS
卷 46, 期 19, 页码 4726-4729出版社
OPTICAL SOC AMER
DOI: 10.1364/OL.437681
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资金
- National Key Research and Development Program of China [2018YFE0201900]
A four-channel coarse wavelength division multiplexing (CWDM) (de)multiplexer based on a thin film lithium niobate-silicon rich nitride hybrid platform has been designed, with excellent optical performance and center wavelengths aligning with the ITU-T G.694.2 standard.
A four-channel coarse wavelength division multiplexing (CWDM) (de)multiplexer on a thin film lithium niobate-silicon rich nitride hybrid platform has been designed, fabricated, and experimentally measured. Enabled by cascaded multimode waveguide Bragg gratings, the (de)multiplexer has a box-like spectral response, wide 1-dB bandwidth (10 nm), low excess loss (< 1.08 dB), and low channel cross talk (<-18 dB). The central wavelengths of the (de-)multiplexer are 1531/1551/1571/1591 nm, which align to the wavelength grids stipulated by the standard ITU-T G.694.2. (C) 2021 Optical Society of America
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