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Chiron Series Pockels Cells product image

Chiron Series Pockels Cells

Operating in the 200–1650 nm wavelength range with active apertures from 3.25–7 mm, at a repetition rate up to 1 MHz.

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Product description

Offering a voltage contrast ratio that is greater than 1000:1 at 1064 nm. Utilizing a dual crystal geometry, Chiron Pockels Cells have a low driving voltage (~2.3 kV quarter-wave voltage at 1064 nm for the Chiron 3).

The Chiron series is ideal for high average power systems due to low absorption that results in reduced thermal lensing and reduced depolarization. Low absorption is achieved with superior crystal quality and we accomplish this by utilizing proprietary techniques for crystal growing, fabrication, and polishing techniques to provide reliable, high-performing Pockels cells.

Chiron Pockels cells work in regenerative amplifiers, high pulse repetition rate micro-machining lasers, and high-average power lasers for material processing and metal annealing, as well as any other high power laser application.

Key features

  • High pulse rate operation to 1 MHz
  • Solid-state – no index matching fluid
  • Low acoustic noise
  • Damage resistant ceramic apertures
  • Compact design
  • High-reliability
  • Operation at high average power

Specifications

NameValue
Hard aperture diameter2.6 - 7 mm
Single pass insertion loss< 1.5% @ 1064 nm
Intrinsic contrast ratio (ICR)> 1000:1 @ 1064 nm
Voltage contrast ratio (VCR)> 1000:1 @ 1064 nm (parallel polarizers)
Single pass wavefront distortion< λ / 6 @ 1064 nm
LIDT10 J / cm² (10 Hz @1064 nm, 10 ns, ~1 mm diameter) ¹
Capacitance (DC)~4 pF
Temperature range exposure to simulate storage and shipping conditions-25°C to 50°C ²
Rise time10-90% (theoretical) into 50 Ω line: ~ 1 ns
Duty cycle< 5% in 1 s (applied voltage time/total time)

Typical specifications for standard cell Chiron 2.6Chiron 3 Chiron 4Chiron 5Chiron 7
PHYSICAL
Hard aperture diameters2.6 mm3.25 mm4 mm5.5 mm7 mm
ELECTRICAL
DC quarter wave voltage (±6%) @ 1064 nm1.9 kV2.3 kV2.9 kV3.8 kV4.7 kV

¹ Recommended operation at 1/2 this fluence level for increased longevity. LIDT will vary with wavelength and beam parameters.

² May require 48 hours, or more, to equilibrate following exposure to temperature extremes for contrast ratio values to recover.

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