1040 SERIES POCKELS CELL
ELECTRO-OPTIC LIGHT MODULATORS
1040 Series Pockels cell light modulators are designed for high speed laser shutter and pulse chopper applications external or internal to the laser cavity. They are also utilized as Q-Switches, cavity dumpers and polarization rotators. The basic mechanical design is configured to accept a variety of connection devices to meet most system requirements.
Basically capacitive in impedance, they utilize low inductance, wide copper tab leads to thereby allowing switching times as fast as 300 picoseconds in 10 millimeter aperture models.Miniature banana pins, useful for direct connection to printed circuit board drivers, as well as N, BNC, HN, MHV and SHV type connectors for cable impedance matching are available. For capacitive or source terminated use, tab leads are located on one side while the "straight through" configuration, with matching input and output copper tab leads, is used for load terminated applications.
The 1040 Series mechanical configuration yields the lowest capacitance devices for a given aperture size. It facilitates experimentation and impedance matching with transmission lines, Blumlein structures, spark gaps, and solid state FET or avalanche transistor type drivers.
Low capacitance of both single and dual crystal types simplifies their use with resonated electrical drives in UHF applications. Dual crystal types operate at one half the voltage of single crystal types.
Crystals used in the 1040 Series are KD*P (98 +D2 %, KD2 PO4 ) grown and fabricated at Lasermetrics. They are selected to be free from strain, stria, inclusions, lowest residual birefringence and wavefront distortion. The standard optical finish on crystals is: flatness 1/8 wave; parallelism 10 arcseconds.Windows are bubble and strain-free fused quartz with a 10-5 optical finish. Wedged crystals and windows as well as integrally mounted polarizers, antireflection coatings and index matching fluids are available options.
Sol Gel antireflection coatings can be applied to crystals for highest peak and average power applications. Sol Gel coatings are extremely efficient, having reflection losses of 0.05% per surface. Damage threshold for Sol Gel coatings is at least as high as that of the KD*P crystal material. They are available for the wavelength range of 532 to 1100 nanometers.
1040 SERIES - NOMINAL SPECIFICATIONS
CONFIGURATIONS AND DIMENSIONS
描述 [描述] designed for high speed laser shutter and pulse chopper applications external or internal to the laser cavity