Newport’s 818P Series High Power Detectors provide a full range of the highest quality detectors to meet most optical power measurement needs. The 818P series offers broadband, spectrally flat power detectors for general use. High peak power pulse damage resistance in specific UV and IR bands are also available. Maximum power ratings range from 1 to 400 Watts. Higher maximum power ratings require heatsink, fan, or water-cooled operation. Standard apertures of 12, 19, 25 and 55 mm are available. Volume absorber versions with an 18mm aperture are also available. Typical applications include measurements of CW or pulsed Ion, Nd:YAG, Ti:Sapphire, CO₂, Holmium lasers, high-power laser diodes and Excimer laser measurements in the UV range.
The newly introduced 818P-001-12 offers the flat spectral response and the low spatial dependence of thermopile detectors, while retaining the high sensitivity of photodiodes. Users working with lasers in the µW and mW range will appreciate its lower thermal drift compared to the standard thermopile detectors. It is ideally suited for measuring pulsed laser diodes, OPA, gas lasers (HeNe, argon, etc) or any low power laser.
All 818P high power detectors include a DB15 connector and internal EEPROM for storing factory calibration data, making them ...

Newport’s 818P Series High Power Detectors provide a full range of the highest quality detectors to meet most optical power measurement needs. The 818P series offers broadband, spectrally flat power detectors for general use. High peak power pulse damage resistance in specific UV and IR bands are also available. Maximum power ratings range from 1 to 400 Watts. Higher maximum power ratings require heatsink, fan, or water-cooled operation. Standard apertures of 12, 19, 25 and 55 mm are available. Volume absorber versions with an 18mm aperture are also available. Typical applications include measurements of CW or pulsed Ion, Nd:YAG, Ti:Sapphire, CO₂, Holmium lasers, high-power laser diodes and Excimer laser measurements in the UV range.
The newly introduced 818P-001-12 offers the flat spectral response and the low spatial dependence of thermopile detectors, while retaining the high sensitivity of photodiodes. Users working with lasers in the µW and mW range will appreciate its lower thermal drift compared to the standard thermopile detectors. It is ideally suited for measuring pulsed laser diodes, OPA, gas lasers (HeNe, argon, etc) or any low power laser.
All 818P high power detectors include a DB15 connector and internal EEPROM for storing factory calibration data, making them compatible with Newport's new 1935-C and 2935-C Series Optical Meters (see High-Performance Optical Meters), and 1918-C (see High-Performance Hand-Held Optical Power and Energy Meter) and 842-PE Handheld Power/Energy Meter (see High Accuracy Hand-Held Optical Power and Energy Meter). When using with Newport's 1835-C and 2835-C Series Optical Meters, use the adaptor cable 818P-DIN (ordered separately).
All 12mm aperture 818P detectors have a 8-32 tapped hole and all other 818P Series detectors have a 1/4-20 tapped hole for post or plate mounting.
Calibration of optical detectors is required annually to assure NIST traceability. Newport’s recalibration services are geared to provide fast turnaround to meet your tight schedule.