Double BBO Crystal Based EO Q-Switch

BBO-based Pockels cell are used to change thepolarization state of light passing through it when an voltage is applied tothe electrodes of BBO electro-optic crystals. Typical applications includeQ-switching of the laser cavity, laser cavity dumping and coupling light intoand from regenerative amplifiers. Low piezoelectric ringing makes BBO Pockels cellattractive for the control of high-power and high repetition rate lasers. Fastswitching electronic drivers properly matched to the cell are available forQ-switching, cavity dumping and other applications. BBO Pockels cells aretransverse field devices. The quarter-wave voltage is proportional to the ratioof electrode spacing and crystal length, therefore, smaller aperture, lower quarter-wavevoltage, besides, double crystal design, which has lower quarter-wave voltage,is widely used to work in half-wave mode with fast switching times. CPDBQS-0404020 has two BBO crystal series design, so the quarter-wave voltage is 2500 V, and the half-wave voltage is 5000 V, the double crystal design can extend many application of electro-optical and modulation.