When you think laser, you think to laser surgery, and all the wavelengths have different properties, the 'wavelengths with greater affinity to hemoglobin and melanin are those most suitable, then the diode lasers are generally more effective .
Is possible get the same results with a laser ND: YAG at high frequency and high peak power, and also with the Erbium: YAG laser, knowing that the hemostatic effect of such wavelength and practically zero.