Item Specifics:

• Brand: Gooch & Housego

• Model: QS27-4D-B-C9

• MPN: QS27-4D-B-C9

• Type: Acousto-Optic Q-Switch

• Wavelength: 1064 nm

• Operating Frequency: 27.12 MHz

• Active Aperture: 8 mm

• AR Coating Reflectivity: < 0.2% per surface

• Damage Threshold:

  1 GW/cm²

• Transmission:

  99.6% (single pass)

• Static Insertion Loss: ≤ 6% at 50W laser power

• VSWR: < 1.2:1 (<1.4:1 at 50W RF power)

• RF Power: Max 50W continuous wave (Compressional mode), Max 100W continuous wave (Shear mode)

• Cooling: Water-cooled; flow rate > 190 cc/min

• Cooling Channel Material: Aluminum (de-ionized water recommended)

• Recommended Water Temperature: +22°C to +32°C

• Thermal Switch Cut-off: +55°C ± 5°C

• Storage Temperature: 0°C to +50°C

• Interaction Material: Fused Silica

• Country/Region of Manufacture: United Kingdom

• Unit Quantity: 1

• Unit Type: Unit​

Description:

This listing is for a Gooch & Housego QS27-4D-B-C9 Acousto-Optic Q-Switch, designed for high-power Nd:YAG laser applications at 1064 nm. Operating at 27.12 MHz, this Q-switch features an 8 mm active aperture and is capable of handling high laser power with excellent thermal management. The unit is water-cooled and constructed with high-quality fused silica for superior optical performance.​

Features:

• High damage threshold suitable for high-power laser applications

• Low insertion loss and high transmission for efficient operation

• Water-cooled design ensures optimal thermal management

• Compact and robust construction for reliable performance

• Ideal for use in industrial, medical, and research laser systems​

What’s Included:

• 1x Gooch & Housego QS27-4D-B-C9 Acousto-Optic Q-Switch

• No accessories or manuals unless otherwise stated/pictured