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Write the difference between LED and Laser diode
1 Answer
| written 9.5 years ago by | modified 5.9 years ago by |
| LED | LASER |
|---|---|
| LED - Light emitting diode | LASER - Light amplification by stimulated emission of radiation |
| It is polychromatic | It is highly monochromatic |
| It is not coherent | It is highly coherent |
| Spontaneous emission is responsible for it. | Spontaneous emission is responsible for it. |
| Not directional | Highly directional |
| Poor energy is … |