Power control system
laseropticalclosed-loop

Power control system - Cambridge Technology - laser / optical / closed-loop
Power control system - Cambridge Technology - laser / optical / closed-loop
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Characteristics

Function
power
Type/technology
closed-loop, optical, laser
Product applications
industrial

Description

Kit includes a beam sampler and closed-loop control system to stabilize the output power of the water-cooled 48-1 CO2 lasers. Performance of the system is typically ±2%. They are factory installed, and power to the kit is provided through a wall plug transformer delivering 24VDC. A beam-splitter internal to the sampler diverts 8% of the output beam to a diffuser and thermo-pile detector. The thermo-pile detector signal is amplified within the sampling enclosure to a 1 to 12V signal level. A remotely located controller generates a variable duty cycle 5 kHz signal to maintain a constant average power of the laser. On a custom basis, the control frequency can be raised to 20 kHz for less optical ripple.

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