1. As light source in fiber optic communication.
2. In the infrared spectrometers.
3. In the medical field.
4. In military applications.
5. To measure distance, alignment angle etc.
6. For flow measurement.
7. As a sharp cutting tool in machine tool application.
8. In the communication.
9. For welding.
10. For sound recording and reproduction (in CD players)
11. In holography.