Ophir-Spiricon, Logan, UT, is offering a new line of thermal laser power sensors with powers up to 400 W. These high performance, heat dissipation sensors feature an array of pins for cooling, unlike other devices that rely on flat cooling fins that consume significantly more space. As a result, they are a compact laser power sensors and half the size of most devices. The modular design can be tailored for a variety of custom OEM applications as well.
The new high thermal efficiency sensors also have improved detectors for better uniformity and longer lifetimes. The sensors are very linear and show no drift in readings when they heat up under laser irradiation. Linearity and stability with heating is better than 1% in most cases. The devices also have very high uniformity of reading over the surface, better than ±1%, in most cases.
"The thermal laser power sensors are produced with a new manufacturing process that allows the devices' disks to stand up to higher temperatures," stated Ephraim Greenfield, VP Engineering, Laser Measurement Group, Ophir-Spiricon. "This means they are more reliable under continued use and when cycling at high powers."
The low-medium power thermal sensors are designed for concentrated beams and pulses with power levels from 50 mW to 150 W and apertures to 35 mm. The medium-high power sensors are designed for higher power applications up to 400 W with apertures to 50 mm.