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High resolution, high channel count silicon arrayed waveguide grating router on-chip
Optics Express
|May 9, 2023
Summary
This study demonstrates a compact silicon photonic arrayed waveguide grating router (AWGR) for dense wavelength division multiplexing (DWDM). The device achieves high-speed data routing with low insertion loss and crosstalk, suitable for advanced optical communication systems.
Area of Science:
- Photonics and Optical Engineering
- Integrated Optics
- Semiconductor Devices
Background:
- Dense Wavelength Division Multiplexing (DWDM) is crucial for increasing optical communication capacity.
- Arrayed Waveguide Grating Routers (AWGRs) are key components for DWDM systems.
- Silicon photonics offers a scalable platform for integrated optical devices.
Purpose of the Study:
- To experimentally demonstrate a compact 32x32 silicon photonic integrated AWGR.
- To evaluate the performance of the AWGR for DWDM applications.
- To assess its suitability for high-speed data routing.
Main Methods:
- Fabrication of a silicon photonic integrated AWGR with specific dimensions.
- Experimental characterization of channel loss, insertion loss, and crosstalk.
- Testing with 25 Gb/s signals to evaluate data routing capabilities.
Main Results:
- A 32x32 AWGR with dimensions of 2.57 mm x 1.09 mm was successfully fabricated.
- Achieved a best-case insertion loss of -1.66 dB and average channel crosstalk of -15.74 dB.
- Demonstrated high-speed data routing at 25 Gb/s with clear optical eye diagrams and low power penalty.
Conclusions:
- The demonstrated silicon photonic AWGR is a viable component for DWDM systems.
- The device exhibits excellent performance metrics, including low loss and crosstalk.
- It is suitable for high-speed optical data routing applications in next-generation communication networks.
