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Wireless optical power transfer system incorporating a wide-field-of-view optical receiver
Optics Express
|November 14, 2024
Summary
This study presents a novel receiver design for simultaneous wireless charging of multiple devices. The compact, wide-field-of-view receiver achieves 1.23% efficiency, with potential for improvement in wireless power transfer systems.
Area of Science:
- Optoelectronics
- Wireless Power Transfer
Background:
- Simultaneous wireless charging is crucial for multi-device ecosystems.
- Existing receiver designs often lack wide field-of-view and simultaneous charging capabilities.
Purpose of the Study:
- To introduce a novel compact receiver design for simultaneous wireless charging.
- To enable a wide field-of-view and bidirectional gain medium for enhanced charging.
- To evaluate the performance of the proposed receiver with a specific transmitter setup.
Main Methods:
- The receiver design incorporates a ball-lens retroreflector with specialized coatings.
- A transmitter utilizing a bidirectional broadband semiconductor optical amplifier and filters was employed for testing.
- System efficiency was measured using the developed receiver and transmitter configuration.
Main Results:
- The novel receiver design demonstrated a compact form factor and a wide field-of-view (±60 degrees).
- The system achieved an overall efficiency of 1.23% in initial tests.
- The design facilitates simultaneous charging of multiple receivers.
Conclusions:
- The proposed receiver design offers a promising solution for simultaneous wireless power transfer.
- Its wide field-of-view and bidirectional capabilities enhance integration potential with various transmission systems.
- Further improvements in gain media can significantly boost system efficiency.
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