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Scalable multicast hybrid broadband-crossbar wavelength selective switch: proposal and analysis
Optics Letters
|January 15, 2021
Summary
We developed a novel hybrid broadband-crossbar switch for on-demand wavelength switching and multicasting. This new design significantly reduces size and power consumption by cutting switching elements by 50%.
Area of Science:
- Photonics
- Optical Networking
- Integrated Optics
Background:
- Efficient optical switching is crucial for high-capacity communication networks.
- Existing multiwavelength switches face challenges in footprint and power consumption.
- Ring resonators are key components in integrated photonic devices.
Purpose of the Study:
- To introduce a new hybrid broadband-crossbar switching network.
- To demonstrate improved performance in terms of footprint and power consumption.
- To analyze switch loss, crosstalk, and fabrication tolerance.
Main Methods:
- Design and implementation of a hybrid broadband-crossbar switch fabric.
- Experimental characterization of switch loss and crosstalk.
- Evaluation of fabrication tolerance for second-order ring resonators.
Main Results:
- The new switch fabric reduces switching elements by approximately 50% compared to previous designs.
- The hybrid design offers improvements in switch footprint and power consumption.
- Experimental data on 64 second-order ring resonators and over 250 heaters inform fabrication tolerance.
Conclusions:
- The proposed hybrid broadband-crossbar switch represents a significant advancement in optical switching technology.
- The design offers a more compact and power-efficient solution for multiwavelength switching and multicasting.
- Fabrication tolerance analysis provides valuable insights for the reliable production of ring resonator-based photonic devices.
