G25 - 25mm Gold Integrating Sphere

These convection cooled gold spheres are designed for mid power laser applications in the near to mid infrared (NIR and MIR). They provide good power handling capability up to 10W (CW). The back plate of the sphere is lapped and coated for mounting to liquid or forced air cooled cold plates. With a ...Read more

These convection cooled gold spheres are
designed for mid power laser applications in
the near to mid infrared (NIR and MIR). They
provide good power handling capability.

High power measurements are often performed
using thermopile detectors. Thermopiles
however, have the disadvantage of reacting
very slowly - typical rise times lead to
measurement periods of 1 second at best.
The combination of an integrating sphere and
a photodiode based power meter opens the
possibility of measuring high power fluctuations
on a µs time scale. This can be useful for
setting up and debugging high power CW lasers.


CHARACTERISTICS

Power handling: up to 10W (CW); up to 100W
(CW) with suitable cold plate mounted

High power density: 5kW/cm²

Compatibility: OPM150 or OPM500 power meters
via fibre coupling or photodiode port



These convection cooled gold spheres are designed for mid power laser applications in the near to mid infrared (NIR and MIR). They provide good power handling capability up to 10W (CW). The back plate of the sphere is lapped and coated for mounting to liquid or forced air cooled cold plates. With a suitable cold plate, the sphere can withstand up to 100W (CW) power.

High power measurements are often performed using thermopile detectors. Thermopiles however, have the disadvantage of reacting very slowly - typical rise times lead to measurement periods of 1 second at best. The combination of an integrating sphere and a photodiode based power meter opens the possibility of measuring high power fluctuations on a µs time scale. This can be useful for setting up and debugging high power CW lasers.

These spheres may be combined with our OPM150 or OPM500 series of power meters via fibre coupling or via a photodiode port. Just plug it in to your USB port and start measuring!

Ports: SMA fibre, FC fibre, photodiode (Ge, InGaAs, IR-extended-InGaAs)

Do you provide custom integrating spheres or modifications of standard spheres?

Yes. As with all of our products, we offer customized units and modifications of existing, standard products. Modifications might be for example the number of ports, the size of ports or the type of photodiode used. Please contact us with your requirements.

  • Sphere inner diameter: 25mm
  • Standard 3 port design (fibre      and photodiode)
  • Power density: 5000W/cm²
  • Wavelength range: 650nm – 20µm