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Related Experiment Video

Updated: Jun 25, 2026

Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications
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Fabrication of Polymer Microspheres for Optical Resonator and Laser Applications

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Integrated polymer microprisms for free space optical beam deflecting.

Christopher Reardon1, Andrea Di Falco, Karl Welna

  • 1School of Physics and Astronomy, University of St Andrews, North Haugh, St Andrews, Scotland. cr39@st-andrews.ac.uk

Optics Express
|March 5, 2009
PubMed
Summary

We developed a new free space optical communication system using microprisms on vertical cavity surface emitting lasers (VCSELs) for beam deflection and multi-channel communication. This technology enables precise beam steering for applications like location discovery in distributed networks.

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Area of Science:

  • Optoelectronics
  • Optical Communications
  • Microfabrication

Background:

  • Free space optical (FSO) communication offers high bandwidth potential but faces challenges in beam steering and multi-channel integration.
  • Current FSO systems often require bulky or complex steering mechanisms.
  • Vertical cavity surface emitting lasers (VCSELs) are suitable for compact optical communication transmitters.

Purpose of the Study:

  • To demonstrate a novel method for beam deflection and multi-channel communication in FSO systems.
  • To integrate microprisms directly onto VCSEL arrays for a compact transmitter design.
  • To analyze the feasibility of this technology for applications such as location discovery.

Main Methods:

  • Design and fabrication of a transmitter array with integrated microprisms on VCSELs.

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  • Characterization of beam deflection angles in a planar configuration.
  • Analysis of a location discovery application within a distributed network context.

    • Main Results:

    • Achieved beam deflection of up to 10 degrees using the integrated microprism-VCSEL array.
    • Demonstrated the capability for multiple channel communication.
    • Presented a viable design for a compact and efficient FSO transmitter.

    Conclusions:

    • The integrated microprism-VCSEL approach is effective for beam deflection and multi-channel FSO communication.
    • This technology offers a promising solution for compact FSO transmitters.
    • The proposed system has potential applications in distributed networks, including location discovery.