Tunable Diode Laser System Tunable Semiconductor DFB Laser High Power . These tunable dfb lasers are mainly wavelengths of 1260nm - 1625nm. They're IR infrared Tunable Diode Laser .
A tunable laser is a laser whose wavelength of operation can be altered in a controlled manner. While all laser gain media allow small shifts in output wavelength, only a few types of lasers allow continuous tuning over a significant wavelength range.
Tunable Diode DFB Laser is the DFB laser whose wavelength of operation can be altered in a controlled manner.