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Quasi-light Storage for Optical Data Packets
Published on: February 6, 2014
10m/500 Mbps WDM visible light communication systems
Wen-Yi Lin1, Chia-Yi Chen, Hai-Han Lu
1Institute of Electro-Optical Engineering, National Taipei University of Technology, Taipei, 106, Taiwan.
Optics Express
|April 27, 2012
Summary
This study demonstrates a wavelength-division-multiplexing visible light communication system using red and green laser pointer lasers. The system achieves a low bit error rate for high-speed data transmission over 10 meters.
Area of Science:
- Optical Communications
- Wireless Technologies
Background:
- Visible Light Communication (VLC) systems offer high bandwidth and security.
- Wavelength-Division-Multiplexing (WDM) enhances spectral efficiency in optical systems.
- Laser Pointer Lasers (LPLs) present a novel, cost-effective light source for VLC.
Purpose of the Study:
- To propose and experimentally demonstrate a WDM VLC system utilizing red and green LPLs.
- To evaluate the system's performance in terms of bit error rate (BER) and data transmission speed.
- To assess the impact of preamplifiers and adaptive filters on free-space transmission.
Main Methods:
- Implementation of a WDM VLC system with directly modulated red and green LPLs.
- Integration of preamplifiers and adaptive filters at the receiver.
- Experimental testing of data transmission at 10 meters with a 500 Mbps data rate.
Main Results:
- Achieved a low BER of less than 10(-9) for each wavelength.
- Demonstrated clear eye diagrams, indicating high signal quality.
- Confirmed the effectiveness of preamplifiers and adaptive filters in improving free-space transmission.
Conclusions:
- The proposed WDM VLC system using LPLs offers high-speed data rates and long transmission distances.
- The system exhibits simplicity and convenience for installation.
- LPLs represent a promising component for advanced VLC applications.
