976nm 140W Wavelength Stabilized Diode Laser

The effect of wavelength locking is related to factors such as the operating current of the high-power semiconductor laser, the cooling temperature, the duty cycle of the operating current, and the "smile" phenomenon. When the difference between the lasing wavelength and the Bragg wavelength of the volume Bragg grating (VBG) is less than 3.0 nm, a better wavelength locking effect can be obtained. The realization of wavelength locking depends on specific technologies and methods, such as using an external cavity laser structure to adjust and control the output wavelength of the laser through feedback elements such as VBG to ensure its stability.