研究目的
Investigating the performance of a compact optical add-drop multiplexer in silicon-on-insulator based on combining mode selection with Bragg reflection.
研究成果
The integrated OADM in SOI based on mode selection and Bragg reflection demonstrates a simple configuration, low crosstalk, and error-free operation for add and drop signals, with potential for full integration by adding on-chip components.
研究不足
The device requires an off-chip circulator to extract the drop channel and a fiber coupler to combine the two through ports, which may limit its integration potential.
1：Experimental Design and Method Selection:
The OADM is designed based on mode selection and Bragg reflection in a multimode waveguide incorporating a BG.
2：Sample Selection and Data Sources:
The device consists of four vertical grating couplers, a pair of mode-multiplexer/mode-demultiplexers, and a multimode waveguide incorporating a BG.
3：List of Experimental Equipment and Materials:
The device is fabricated using e-beam lithography with a single full etch.
4：Experimental Procedures and Operational Workflow:
The performance is characterized using BER measurements for 10-Gb/s NRZ data.
5：Data Analysis Methods:
The spectral response and crosstalk performance are analyzed using power meter and BER measurements.
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