Modulation resulted frequency chirp in DFB laser

The easiest way is to change the current running through the laser diode, which is also called direct modulation. More current leads to more optical gain, and more gain yields more output intensity from the laser diode. The problem with directly modulation is that...

Semiconductor laser diodes

Semiconductor laser diodes have unparalleled broad range of application, including optical data transmission and storage , metrology , spectroscopy , material processing , and various kinds of medical treatments . They are made of semiconductor material that can...