Gbps Long-Distance Real-Time Visible Light Communications Using a High-Bandwidth GaN-Based Micro-LED
In this investigation, we experimentally demonstrated a high-speed Gbps long-distance real-time visible light communication system based on non-return-to-zero on-off keying modulation by using a high-bandwidth Gallium nitride-based micro-LED with a modulation bandwidth of ∼230 ...
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| Main Authors: | , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
IEEE
2017-01-01
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| Series: | IEEE Photonics Journal |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8115132/ |
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| Summary: | In this investigation, we experimentally demonstrated a high-speed Gbps long-distance real-time visible light communication system based on non-return-to-zero on-off keying modulation by using a high-bandwidth Gallium nitride-based micro-LED with a modulation bandwidth of ∼230 MHz and a size of 40 <italic>μ</italic>m <inline-formula><tex-math notation="LaTeX">$ \times $</tex-math></inline-formula> 40 <italic>μ</italic>m. The maximum real-time data rate obtained is up to 1.3 Gbps at a 3 m free-space transmission distance with a bit-error rate (BER) of 3.4 <inline-formula><tex-math notation="LaTeX">$ \times $</tex-math></inline-formula> 10<sup> –3</sup> and 1 Gbps at a 10 m distance with a BER of 3.2 <inline-formula><tex-math notation="LaTeX">$ \times $</tex-math></inline-formula> 10<sup>–3</sup>, both of which are underneath the forward error correction threshold of 3.8 <inline-formula><tex-math notation="LaTeX">$ \times $</tex-math></inline-formula> 10<sup>–3 </sup> required for free-error operation. In addition, when the transmission distance is increased to 16 m in free space through reflecting the emission light beam by blue reflectors mounted on the wall, a data rate of 0.87 Gbps with a BER of 3.5 <inline-formula><tex-math notation="LaTeX">$ \times $</tex-math></inline-formula> 10<sup>–3 </sup> is achieved successfully. |
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| ISSN: | 1943-0655 |