Wiktionary
n. (context physics English) A laser whose active medium is a form of light-emitting diode
Wikipedia
A laser diode, or LD also known as injection laser diode or ILD, is an electrically pumped semiconductor laser in which the active laser medium is formed by a p-n junction of a semiconductor diode similar to that found in a light-emitting diode.
The laser diode is the most common type of laser produced with a wide range of uses that include fiber optic communications, barcode readers, laser pointers, CD/DVD/ Blu-ray Disc reading and recording, laser printing, laser scanning and increasingly directional lighting sources.
Usage examples of "laser diode".
This is the laser diode based on light emitting diode (LED) technology.
From the rear window panel of the van, the invisible beam of the device's near-infrared semiconductor laser diode had been aimed at a ninety-degree angle through the back windshield at the Fiat's rearview mirror.