What is called the Pockels Cells?
By applying electric field control to the electro-optic crystal, the refractive index of the electro-optic crystal in a certain direction can be changed，so that the electro-optic modulator pockels cells can be used as a variable half wave plate to change the polarization state. When the pockels cells of the electro-optic modulator is placed between two vertical polarizers, the luminous intensity modulation can be realized.The electro-optic effect can be divided into transverse electro-optic effect and longitudinal electro-optic effect. In transverse electro-optic effect, the propagation direction of light is perpendicular to the electric field, and the propagation direction of light in longitudinal electro-optic effect is parallel to the electric field.
CRYLINK’s pockels cells use protective window with high quality AR coating, which can ensure high transmission rate and prolong the service life of the device.
The half wave voltage of longitudinal electro-optic effect is independent of crystal size, so it is difficult to realize high-frequency electro-optic modulation. The working principle of BBO pockels cells is based on transverse electro-optic effect, the half wave voltage can be reduced by changing the size of BBO crystal. Crylink can provide BBO pockels cells with different aperture and length, which can adapt to different environments. Due to its low ringing effect and high laser-damaged threshold, the maximum frequency of Crylink’s BBO pockels cells can reach 1MHz.
Features
Low ringing effect
Low insertion lossSmall and compactMulti wavelength selectionHigh laser-damaged thresholdHigh repetition rate DPSS Q-switchPulse selectionHigh repetition rate regenerative amplifier controlCavity dumpingHigh frequency optical switchBeam chopperOptical power stabilizer.
Verdict
CRYLINK can provide BBO pockels cells with different aperture and length that have the features of low ringing effect, small size, light weight, and high laser-damaged threshold.
