Sensors & Detectors

The UP19K-15S-H5-D0 is a thermal detector designed for laser power measurement up to 15 W. Its modular concept design increases the power capability with five different cooling modules.

The QE25SP-S-MT-D0 is a pyroelectric detector designed for laser energy measurements up to 3.0 J with a noise level down to 2 µJ for the MB coating. The modular design concept increases the power capabilities and uses two different cooling modules.

Ophir Photonics offers a series of wide spectral range photodiode laser measurement sensors for power ranges from 200 to 1800 nm within the UV and IR spectral ranges. Available models include the PD300-UV/IR without a filter for lowest powers from 200 to 1100 nm, the PD300-UV/IR with an installed filter for powers from 700 – 1800 nm, and the PD300-IRG for telecom wavelength fiber and free space measurements.

Ophir Photonics offers a series of very sensitive thermal power/energy laser measurement sensors designed with very low noise and drift to measure very low powers and energies. Available models include those calibrated for Terahertz radiation, those with a removable window, and those for divergent beams with windows that block infrared.

The RM9 series of radiometers are designed to use a pyroelectric or photodiode sensor in conjunction with chopped CW or quasi CW radiation, using a digitally synthesized lock-in amplifier to reduce external noise to a minimum. The signal is passed through the 18 Hz chopper and the chopped signal is detected by the sensor. All signals not at the 18 Hz frequency are suppressed.

Gentec-EO offers the largest selection of calibrated laser energy sensors for the measurement of laser powers from nanojoules to several tens of joules per pulse. They are offered in standalone formats, where the electronics are integrated in the device, or as standard sensors that can be hooked up to an energy meter.

The Ophir® L40(500)A-LP2-DIF-35 is a compact, high damage threshold laser power/energy sensor capable of measuring up to 4kW without the need for water cooling. The Ophir® L40(500)A-LP2-DIF-35 can measure CW lasers up to 500W and pulsed lasers up to 2kJ. The compact design makes it easy to place between optical components when troubleshooting a beam path. The sensor can handle large, unfocused beams of 35mm diameter, as well as narrow, high density beams down to 1mm @ 1kW.

The Ophir® L2000W-PF-120 is a water-cooled Laser Power/Energy Sensor designed for measuring large pulsed lasers. This thermal sensor measures powers from 1 W to 200 W and energies form 6 J to 6000 J over the spectral range of 0.3 µm to 2.2 µm. The sensor features a large 120 m aperture to accommodate for high energy densities and short pulses.