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Transmission of Multiple Signals through an Optical Fiber Using Wavefront Shaping
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Transmitter and receiver technologies for optical wireless.

Dominic O'Brien1, Sujan Rajbhandari2, Hyunchae Chun3

  • 1Department of Engineering Science, University of Oxford, Parks Road, Oxford, UK.

Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
|March 3, 2020
PubMed
Summary
This summary is machine-generated.

Optimizing optical wireless (OW) communication systems requires advancing both transmitter and receiver technologies. This review details current state-of-the-art components and future directions for high-capacity OW links.

Keywords:
optical wirelessvisible light communications

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Area of Science:

  • Optical Wireless Communications
  • Photonics
  • Telecommunications Engineering

Background:

  • High-capacity optical wireless (OW) communication links face challenges in achieving reliable signal-to-noise ratio (SNR) and bandwidth.
  • Transmitter and receiver subsystems are critical for OW link performance and require joint optimization.
  • Current OW systems utilize modulated light sources (lasers, LEDs) and optical steering for signal transmission.

Purpose of the Study:

  • To review the state-of-the-art in optical wireless transmitter and receiver technologies.
  • To discuss design constraints for OW communication systems.
  • To explore potential future research directions in OW communications.

Main Methods:

  • Survey of current transmitter technologies, including light sources and modulation techniques.
  • Analysis of receiver subsystem designs, focusing on signal collection, filtering, detection, and amplification.
  • Discussion of optical and steering systems for signal directionality and safety compliance.

Main Results:

  • Identified key design constraints for both transmitter and receiver subsystems in OW communications.
  • Detailed the critical role of receiver design in determining link SNR and capacity.
  • Presented an overview of current technological capabilities and limitations.

Conclusions:

  • Advancements in both transmitter and receiver technologies are essential for realizing high-performance OW communication systems.
  • Further research into receiver design is paramount for enhancing SNR and link utility.
  • Future directions include innovations in component design and system integration for improved OW communication.