High Sensitivity Thermal Laser Sensors – 300fW to 12W

The RM9-THz radiometer system is a sensor and optical beam chopper combination for measuring the power of very low level CW or quasi CW light sources. This sensor was specially designed for work in the terahertz range. The RM9-THz sensor has a pyroelectric element to measure a wide dynamic range of radiation, from 100nW to 100mW. It has an 8mm aperture and covers the spectral range from 0.1THz to 30THz. The system comes with the RMC1 chopper that is placed between the source and the RM9 sensor. The chopper should be mounted with the side marked "THIS SIDE TOWARD SENSOR" facing the sensor.

The RM9 radiometer is a sensor for measuring the power of very low level CW or quasi CW lasers and light sources. The RM9 uses a pyroelectric sensor and lock-in amplifier with an 18Hz chopper (not included, use RMC1 or other chopper) to measure a wide range of radiation, from <100nW to 100mW. It has an 8mm aperture and covers the spectral range from 0.15µm to 12µm.

The RM9-PD radiometer is a calibrated sensor for measuring the power of femtowatt CW or quasi CW lasers and light sources. The RM9-PD uses a photodiode sensor in conjunction with an 18Hz chopper (not included, use RMC1 or other chopper). The sensor's power range is from 300fW (femtowatt) to 300nW (nanowatt). It has an 8mm aperture and covers the spectral range from 0.2µm to 1.1µm.

3A is a very sensitive thermopile based laser power/energy sensor with very low noise and drift. It has a 9.5mm aperture. It can measure from 10µW to 3W and from 20µJ to 2J. It is spectrally flat and covers the spectral range from 0.19 to 20 µm. The sensor comes with a 1.5 meter cable for connecting to a meter or PC interface.

The 3A-P is a very sensitive thermal power/energy laser measurement sensor for short pulsed lasers. It has a 12mm aperture. It can measure from 15µW to 3W and from 20µJ to 2J. It has the P type volume absorber and covers the spectral range from 0.15 to 8µm. The sensor comes with a 1.5 meter cable for connecting to a meter or PC interface.

The 3A-PF-12 is a very sensitive thermal power/energy laser measurement sensor for short pulsed lasers. It has a 12mm aperture. It can measure from 15µW to 3W and from 20µJ to 2J. It has a damage threshold of up to 1.5J/cm2 for ns pulses and covers the spectral range from 0.15 to 20µm. The sensor comes with a 1.5 meter cable for connecting to a meter or PC interface.

The 3A-FS is our lowest noise thermal power/energy laser measurement sensor and has a fused silica window. It has a 9.5mm aperture and can measure from 8µW to 3W and from 15µJ to 2J. It covers the spectral range from 0.19 to 2.2µm with window installed and to 20µm with window removed. The sensor comes with a 1.5 meter cable for connecting to a meter or PC interface.

The 12A is a sensitive thermal power/energy laser measurement sensor with low noise and drift. It has a 16mm aperture. It can measure from 2mW to 12W and from 1mJ to 30J. It has the spectrally flat low power broadband absorber and covers the spectral range from 0.19 to 20µm. The sensor comes with a 1.5 meter cable for connecting to a meter or PC interface.