Microwave signal generation based on optical heterodyne and its application in optical telecommunication system

Microwave signal generation based on optical heterodyne technique is presented. In order to demonstrate the feasibility of this technique, it is important to have an application on optical telecommunications systems, where the microwave signal obtained is used to drive a Mach-Zehnder Intensity modulator as part of an external modulation scheme. At the same time the microwave signal is used to synchronize the reception stage. Finally, a practical application is shown when TV-signal is transmitted through 28 Km of standard single mode fiber.