HIGH REP RATE POCKELS CELL DRIVER

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Pockels Cells Below you will see the variety of different types of longitudinal and transverse Pockels cells manufactured by Leysop for modulation, Q-switching, pulse slicing and pulse picking. Pismo OG Pockels cell crystal: During all the other round trips, the pulse experiences low optical losses and can be amplified to a high energy. This means that slowly varying drive pulses can be used and that changes in timing will not greatly affect the transmission of the pulse picker. Effectively the cell is used to dump some length of the pulse before full amplifiaction has occured.

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This cannot be hiigh fast as the light must pass the cell twice. The pulse picker consists of the pockels cell, high voltage driver, synchronization and delay generator.

Pockels Cells

HV pulse amplitude up to 4 kV DQ Series high repetition rate Pockels cell driver has been designed for ceell in mode-locked lasers for cavity dumping or for cavity Q-switching of solid-state nanosecond lasers. We can offer you our standard devices for picking single pulse from femtosecond pulse train with following specification:.

If a short gate drive is used the timing becomes more critical and it will be necessary to synchronise the driver to the RF drive to the cavity as well as to the peak of the mode locked train for a “Q” switched mode locked system. Longitudinally driven cells offer the highest performance but require the highest voltages.

Pockels Cells | Gooch & Housego

This means that slowly varying drive pulses can be used and that changes in timing will not greatly affect the transmission of the pulse picker. QTI designs and manufactures systems for regenerative amplification, plucking, picking, extraction, or selection of optical pulses from visible and near IR mode-locked laser beams.

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In pulsed systems this effect is simply overcome by increasing the amplitude of the applied pulse to greater than that required for DC induced retardation. Also the device is used for pulse slicing in order to gep contrast. With a pair of polarisers around a pockels cell the laser light may be chopped very quickly with a fast high voltage driver. During all the other round trips, the pulse experiences low optical losses and can be amplified to a high energy.

Pulse Pickers and Regen Systems. Our technical expertise is by no means limited pockles this list of products. The second is relatively low rep rate with a single pulse output on single polarization.

Although pulses in mode locked trains are typically sub ps the gate used for pulse picking is generally nearer the two round trip times. There are no items in your cart. For high repetition rates the driver should be attached to the heatsink with thermal resistance of at least 0. It is completely modular in construction, with plug-in units which can be up-gradeable and field replaceable to provide quick turnaround service. Aperture is presently limited to 8 or 10mm. Drivers generally cost considerably more than pockels cells.

Encyclopedia … combined with a great Buyer’s Guide! The blocked pulses do not necessarily constitute a strong energy loss since the average power of the seed laser may be small compared with the average output power of the amplifier, and the remaining average power can be sufficient for saturating the amplifier. The typical repetition rate is 1. Please note that Kentech do not make pockels cells, but can supply them with systems or advise on type suitablility. In some cases it may be necessary to use a clean up system after the pulse, depending upon the application and requirements.

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This driver is extremely useful in regenerative amplifier laser setups where single or multiple pulses are seeded in the laser cavity. The amplifier will then act only on the wanted pulses. The optimum choice will depend on your application, so give us a call to discuss your needs. A trigger signal may then come at any time, and the electronics will act on the switch at the proper time to transmit the next arriving input pulse.

DQ High Repetition Rate Pockels Cell Driver for Q-Switching

Many laser systems are now required to produce shaped pulses or to use shaped drive pulses in order to extract efficiently as much as the energy as is possible from the cel. Apertures range from 8mm to 20mm and cells can be configured with either 1, 2 or 4 terminals depending on your interconnection requirements.

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For pulse repetition rates up to 10 kHz heatsink is not required. RP Services and Tools. However, if the pulse fidelity s not significantly reduced by a cell the pulse may be used again in a second cell. For various reasons see belowit is often necessary to pick certain pulses from such a pulse train, i.