Thermal Power/Energy Measurement Sensor has high damage threshold.

Press Release Summary:

Designed for use with YAG and its harmonics and excimer lasers, 3A-PF-12 can measure powers from 15 µW to 3 W and energies from 20 µJ to 2 J. PF type absorber maximizes damage threshold (1.5 J/cm²) for repetitive ns pulses. Designed for short pulsed lasers, this thermal power/energy laser measurement sensor, with 12 mm aperture and 0.15–20 µm wavelength range, exhibits noise of 4 µW and drift of 5–30 µW.

Original Press Release:

Ophir Photonics Announces High Damage Threshold Sensor for Measuring Low Average Power Pulsed Lasers

North Logan, UT ­– Ophir Photonics Group, global leader in precision laser measurement equipment and a Newport Corporation company, today announced the 3A-PF-12 thermal power/energy laser measurement sensor for short pulsed lasers. Part of the 3A-P family of laser sensors that measure power up to 3W, the 3A-PF-12 is an ultra sensitive sensor that can measure powers from as low as 15µW up to 3W and energies from as low as 20µJ to 2J. The new sensor replaces the P type absorber with the high damage threshold PF type, giving it the industry's highest energy density damage threshold for repetitive pulses.

Designed for use with YAG and its harmonics and excimer lasers, the 3A-PF-12 is a thermal power/energy sensor with low noise of 4µW and low drift of 5-30µW. It delivers the highest energy density damage threshold in the industry, up to 1.5J/cm2 for repetitive ns pulses. The sensor features a 12mm aperture and broad wavelength range of 0.15 – 20µm.


The 3A-PF-12 is available now. OEM pricing is available on request.

•     3A-PF-12 data sheet:

•     3A-P family absorption and damage graphs:

About Ophir Photonics

With over 35 years of experience, Ophir Photonics, a Newport Corporation company, provides a complete line of instrumentation including power and energy meters, beam profilers, spectrum analyzers, and goniometric radiometers. Dedicated to continuous innovation in laser measurement, the company holds a number of patents, including the R&D 100 award-winning BeamTrack power/position/size meters; BeamWatch®, the industry's first non-contact, focus spot size and position monitor for lasers in material processing; and Spiricon's Ultracal, the baseline correction algorithm that helped establish the ISO 11146-3 standard for beam measurement accuracy. The Photon family of products includes NanoScan scanning-slit technology, which is capable of measuring beam size and position to sub-micron resolution. The company is ISO/IEC 17025:2005 accredited for calibration of laser measurement instruments. Their modular, customizable solutions serve manufacturing, medical, military, and research industries throughout the world. For more information, visit

For more information, contact:

Gary Wagner, General Manager

Ophir Photonics (U.S.)

3050 North 300 West

North Logan, UT 84341

Tel: 435-753-3729



PR Office:

Shari Worthington

Telesian Technology Inc.

49 Midgley Lane

Worcester, MA 01604

Tel: 508-755-5242


© 2015. BeamGage, BeamWatch, and BeamMaker are registered trademarks and Pyrocam, BeamMic, BeamTrack, NanoScan, and Ultracal are trademarks of Ophir-Spiricon. All other trademarks are the registered property of their respective owners.

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