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Published on: February 25, 2017
Topological Nanophotonic Wavelength Router Based on Topology Optimization
Hongyi Yuan1, Zhouhui Liu1, Maoliang Wei2
1Key Laboratory of Advanced Optoelectronic Quantum Architecture and Measurements of Ministry of Education, Beijing Key Laboratory of Nanophotonics and Ultrafine Optoelectronic Systems, School of Physics, Beijing Institute of Technology, Beijing 100081, China.
Researchers designed and demonstrated an on-chip topological nanophotonic wavelength router. This device steers different light wavelengths into separate channels, crucial for optical information processing and future topological photonics applications.
Area of Science:
- Nanophotonics
- Topological photonics
- Optical information processing
Background:
- Topological nanophotonic wavelength routers are key for optical information processing.
- Existing methods for realizing such devices are ineffective.
Purpose of the Study:
- To design and experimentally demonstrate an on-chip topological nanophotonic wavelength router.
- To achieve wavelength steering in the optical telecom band.
Main Methods:
- Utilized a topology optimization algorithm for device design.
- Employed valley photonic crystals to create topological states.
- Experimental demonstration of the designed device.
Main Results:
- Successfully designed and demonstrated an on-chip topological nanophotonic wavelength router.
- The device operates in the optical telecom band.
- Measured device exhibits narrow signal peaks and is suitable for integration.
Conclusions:
- This work provides an efficient scheme for realizing topological devices.
- Lays the foundation for future applications in topological photonics.
- The developed router is crucial for advancing optical information processing.
