2007-02-22 04:00:57 · 5 answers · asked by youthebest 2 in Science & Mathematics ➔ Other - Science
Laser (stands for Light Amplification by the Stimulated Emission of Radiation).
You excite molecules, and they release light energy. The light energy is focused.
Learn more below.
2007-02-22 04:04:25 · answer #1 · answered by Brian L 7 · 0⤊ 0⤋
EDFA
Erbium Doped Fiber Amplifiers
Doped fiber amplifiers (DFAs) are optical amplifiers which use a doped optical fiber as a gain medium to amplify an optical signal. They are related to fiber lasers.
2007-02-22 12:06:27 · answer #2 · answered by Anonymous · 0⤊ 0⤋
Man does this ever sound like a homework question.
Also sounds like something that could have easily been searched on Google or Yahoo.
LASER
However, your question is worded vague enough that a CCD might fit (approximately) your description.
I'll let you read both (use wikipedia, for example) and decide which one answers the question.
2007-02-22 12:07:30 · answer #3 · answered by Raymond 7 · 1⤊ 1⤋
LASER
2007-02-22 12:26:30 · answer #4 · answered by Swamy 7 · 0⤊ 0⤋
lasar?
2007-02-22 12:03:04 · answer #5 · answered by Anonymous · 0⤊ 1⤋