Directly modulated laser diode
Direct Modulated Laser diode (DML) can be used to modulate optical power. In DML, the laser output power is adjusted by changing the pump current in the laser gain medium. The pump current is controlled by an electrical drive signal. This type of direct detection (DD) system typically uses On-Off Keying (OOK). In other words, the pump current of the DML is changed through bina...
2025-05-09