Fig.1 Schematic of Precilasers’ active power stability function
As is depicted in Fig,1, a high speed photodiode is used to detect the laser output power. The detected value is used as a reference to feedback the current of the amplifier pump laser with a PID to keep the laser power stable. So for all Precilasers’ frequency converted laser, you just need to click the “power stability” button on the touch screen, then just enjoy the stable laser.
Fig.2 780nm power stability under 15-35℃ high-low temperature environment.