The Optical Voice Link is on display on the third floor of Building 4, almost directly above the Building 4 coffee shop.

For more information, click on a particular component of the display below.

Main Description: A description of what this Optical Voice Link display does, and how to use it.

Background: General information about optical communications.

Fiber: Information about optical fiber, the thin glass strands used to carry light.

Light Emitting Diodes (LEDs): Information about LEDs, devices which convert electrical signals into light.

Photodiode: Information about photodiodes, which convert light into an electrical signal.

Transmitter Circuit: Schematic diagram of the transmitter circuit.

Receiver Circuit: Schematic diagram of the receiver circuit.

Microphone, Speaker, and Meter: These are the parts of the display which interface with the user.

Power Supply: Circuit used to supply power to this display; not directly related to optical communications.

Wire Color Coding: If this is a demonstration of optical communication, why are there so many wires?

Acknowledgments: People who made this display possible.

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