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Q-Switch Pockels Cells

Q-Switch Pockels Cells

Q-Switch Pockels Cells

Product catalog summary
Highlights
  • High repetition rate and peak power damage resistance.
  • Low absorption and UV transmission.
  • Low acoustic noise.
Applications
  • High repetition rate DPSS Q-Switch and regenerative amplifier control.
  • Cavity dumping and beam chopper applications.
Principle of Operation

The EOQ-BBO series Pockels cells are transverse field devices with high operating voltages due to the low electro-optical coefficient of BBO. The quarter-wave voltage is proportional to the ratio of electrode spacing and crystal length. A double crystal design reduces required voltages, allowing operation in half-wave mode with fast switching times.

Application

BBO is preferred for high average power Pockels cell applications due to its laser power handling abilities, temperature stability, and freedom from piezoelectric ringing. It offers fast switching times and a wide transparency range for diverse applications.

Specifications
  • Damage Threshold: > 500 MW/cm² @1064nm, 10ns.
  • Voltage Damage Threshold: 7kV.
  • Model EOQ-BBO-1: Single crystal, 3.4kV quarter-wave voltage, >98% optical transmission.
  • Model EOQ-BBO-2: Double crystal, 1.8kV quarter-wave voltage, >98% optical transmission.
Safety Notice

Units are designed for laser use. Proper laser safety glasses must be worn, and direct or reflected laser beams should not contact the eyes or skin.

Legal Notice

Artifex Engineering reserves the right to change products or discontinue services without notice. Customers should verify current information before placing orders. Artifex Engineering assumes no liability for application assistance or customer product design.

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Catalog excerpts

Q-Switch Pockels Cells-1

Optoelectronics & Engineering Services BBO Pockels Cell HIGHLIGHTS • High Repetition Rate • High repetition rate DPSS Q-Switch • High peak power damage resistance • High repetition rate Regenerative Amplifier control • Cavity Dumping • Beam Chopper The EOQ-BBO series Pockels cells are transverse field devices. The low electrooptical coefficient of BBO results in high operating voltages. The quarter-wave voltage is proportional to the ratio of electrode spacing and crystal length. As a result, a smaller aperture device has lower quarter-wave voltage. However, even for 3mm aperture devices quarter-wave voltage is as high as 3.4KV@1064nm. A double crystal design is available in order to reduce required voltages and allowing operation in half-wave mode with fast switching times. BBO is one of the electro-optic material choices for high average power pockels cell applications. BBO has significant advantages over other materials in terms of laser power handling abilities, temperature stability, and substantial freedom from piezoelectric ringing. Because it relies on the electro optic effect, switching time - aided by the low capacitance of the Pockels cell is very fast. The wide transparency range of BBO allows it to be used in diverse applications. Artifex Engineering Dortmunderstr. 16-18 26723 Emden, Germany mail: [email protected] http://www.afx-eng.com

 Open the catalog to page 1
Q-Switch Pockels Cells-2

ABSOLUTE MAXIMUM RATINGS Damage Threshold Voltage Damage Threshold SPECIFICATIONS Specifications Model Number single crystal double crystal Aperture Diameter Extinction ratio Optical Transmission Typical Capacitance Outline dimension Wavelength range 1/4 WAVE VOLTAGE VS WAVELENGTH

 Open the catalog to page 2
Q-Switch Pockels Cells-4

NOTICE Artifex Engineering reserves the right to make changes to its products or to discontinue any product or service without notice and advises customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement and limitation of liability. Customers are responsible for their applications using Artifex Engineering components. Artifex Engineering...

 Open the catalog to page 4
Q-Switch Pockels Cells-5

Optoelectronics & Engineering Services Pockels cell KD*P APPLICATIONS HIGHLIGHTS Finest strain-free KD*P High contrast ratio High damage threshold • Versatile R&D laser platforms Low 1/2 wave voltage Space efficient Ideal for compact lasers Ceramic apertures Clean and highly damage-resistant High contrast ratio Exceptional hold-off Quick electrical connectors Efficient/reliable installation Ultra-flat crystals Excellent beam propagation A Pockels cell alters the polarization state of light passing through it when an applied voltage induces birefringence changes in an electro-optic crystal such...

 Open the catalog to page 5
Q-Switch Pockels Cells-6

ABSOLUTE MAXIMUM RATINGS Input voltage: 7kV Optical input: 5J/cm² at 1064nm, 10ns pulse or 500W/cm² ORDERING INFORMATION Housing Dimensions EOQ-KD*P-8 EOQ-KD*P-10 EOQ-KD*P-13 Aperture SPECIFICATIONS 1/4 Wave Voltage Transmitted Wave Front Error Damage Threshold OUTLINE DRAWING

 Open the catalog to page 6
Q-Switch Pockels Cells-7

NOTICE Artifex Engineering reserves the right to make changes to its products or to discontinue any product or service without notice and advises customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete. All products are sold subject to the terms and conditions of sale supplied at the time of order acknowledgement, including those pertaining to warranty, patent infringement and limitation of liability. Customers are responsible for their applications using Artifex Engineering components. Artifex Engineering...

 Open the catalog to page 7

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.