Scientists have developed a dual-laser Brillouin optical correlation-domain reflectometry (BOCDR) system that uses two ...

In the pulsed beam case, the laser actually sweeps across your ear at the desired audio frequency. Each method has advantages and disadvantages. Modulated light creates a higher fidelity sound.

After “some” RF design courses, he decided that he had learned enough to build his own frequency-modulated continuous wave radar system. From the level of detail on this project, we’d say ...

In a typical OEO, light from a laser is modulated and passed through a long ... a Q-factor corresponding to its length. The operating frequency can be either fixed using a filter or tuned by ...