At those interfaces, a fraction of the optical signal is reflected back toward the source.

It was the pickup of the sensor station converted into optical signals.

The return signals from the subscribers are put on a fiber as an optical signal and decoded at the head end.

An optical signal introduced into any input port is distributed to all output ports.

Instead, what we usually think of is being able to say the optical signal from a particular location is due to a single molecule.

A Semaphore is an installation used to send optical signals.

If that happens, an optical signal similar to that seen in the figure to the right will result.

He talked through a microphone, and the optical signal traveled to a control unit in the cabin.

Potential sources of intrinsic optical signals imaged in live brain slices.

Both velocity and displacement can be determined by analyzing the optical signals in different ways.