optical maser

American  

[ahp-tuh-kuhl may-zer] / ˈɑp tə kəl ˈmeɪ zər /

noun

1. Obsolete. the original term for laser.

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optical maser Scientific  

1. A laser that produces visible radiation.

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Example Sentences

Thus, the concept of the optical maser — later dubbed the laser — was born.

From Washington Post • Jan. 28, 2015

In 1960, Dr. Townes and Schawlow, both future Nobel laureates, became the first scientists to receive recognition for the optical maser when Bell Labs filed a patent.

From Washington Post • Jan. 28, 2015

The latest device to fascinate the technical community is the optical maser, or, as it is now often called, the laser.

From Scientific American • Jul. 14, 2013

The optical maser is a long-predicted device that many famous laboratories have been racing to achieve, and may prove as important as the transistor, which, like the maser, is a solid-state device.*

From Time Magazine Archive

Because it was designed to produce visible light, ihey called their proposed new instrument an optical maser.

From Time Magazine Archive