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KTP, BBO, KD*P Pockels Cell Driver
● Custom tailored for specific laser applications, including Q-switching of flashlamp pump lasers, Q-switching of DPSS lasers, pulse injection into an amplifier, or for laser pulse picking that requires fast rise and fall time of HV pulse, cavity dumping, and CW beam chopping applications.
● Fully tested with in-house made Pockels cells
● Various choices of voltage region, repetition rate, and pulse form
● Compact design available
● High voltage drivers with operating voltage up to 9.8 kV and HV pulse repetition rate up to 6 MHz
● Competitive price and lead time
Basically all Pockels cell drivers are made based on solid-state electronic technology, using high voltage transistors such as MOSFETs. Multiple high voltage transistors may have to be stacked, taking care to achieve an even distribution of voltage across those. Instead of using some heavily isolated floating gate drive circuitry for the different transistors, one may use certain advanced ideas such as implementing so-called avalanche switch stacks involving avalanche diodes and/or avalanche bipolar transistors.
Device lifetimes can be very long, provided that properly engineered drivers are used with appropriate care. On the other hand, drivers can be destroyed very quickly when used inappropriately.
Pockels Cell Driver for Q-Switching of Flashlamp Pumped Lasers
These drivers are designed for Q-switching of nanosecond flashlamp pumped lasers without use of phase retardation plates, for example to drive a DKDP Pockels cell in YAG lasers for aesthetic therapy. High voltage is applied to Pockels cell in order to inhibit oscillation. Pockels cell is opened by negative polarity pulse allowing laser to radiate.
BBO Pockels Cell Drivers
● HV rise/fall time: 2-4 ns @ 800 V, 6-12 ns @ 2400 V, 10-20 ns @ 4000 V
● HV pulse amplitude up to 4.5 kV
● Pulse repetition rate up to 200 kHz
General Specifications
Types | PCD-2.5V-30 | PCD-4.5V-10 | PCD-2.5V-200/FS | PCD-2.5V-100/FS |
Maximal HV operation voltage | 3 kV | 4.5 kV | 3 kV | 3 kV |
Output polarity | Negative | Negative | Bipolar | Negative |
HV pulse rise time (typical) | - | - | 7 -9 ns | - |
HV pulse fall time (typical) | 7-9 ns | 14 -18 ns | 7 -9 ns | 7 -9 ns |
Maximal HV pulse repetition rate | 30 kHz | 10 kHz | 200 kHz | 150 kHz |
External triggering pulse amplitude | 3-5 V TTL (10 mA) | |||
DC supply | 23-25 V, 1.5 A | 23-25 V, 4.5 A | ||
HV power supply | 2.2kV, 7 W | 4 kV, 7 W | 2.2 kV, 60 W | 2.2 kV, 40 W |
