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Coherent PowerMax-USB PM3Q Low Power Sensor

Updated:2025-03-13

Views:1035

  • Brand: Coherent
  • Model: PowerMax-USB PM3Q
  • Description: This PowerMax-USB PM3Q sensor is an amplified thermopile power sensor intended for measuring low power lasers down into the mW range. It includes a quartz window to more effectively eliminate thermal
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Product Details

Coherent PowerMax-USB PM3Q Low Power Sensor Description:

User's Manual

This PowerMax-USB PM3Q sensor is an amplified thermopile power sensor intended for measuring low power lasers down into the mW range. It includes a quartz window to more effectively eliminate thermal background radiation. Note that the window limits the spectral range to 0.3 to 2.1 μm.

The sensor is terminated in a USB cable that interfaces directly to a PC. A DB25 model (PN 1098419) is available.

For a wider spectral range, the similar PowerMax-USB PM3 model (PN 1174263) does not include the quartz filter, enabling a spectral range of 0.19 to 11 μm.

Low power thermopile for measuring pulsed & CW lasers between 0.5 mW and 2W. Includes a quartz window to more effectively eliminate thermal background radiation. Direct USB interface.

Key Features:

500 μW to 2W range

10 mm diameter active area

0.3 to 2 μm spectral range

Quartz window

Convective air-cooled

Direct USB interface

ISO 17025 accredited

Specifications

Cable Type
USB
Cooling Type
Air
Power Range
500 uW to 2W
Active Area Diameter
10 mm
Detector Coating
Black
Noise Equivalent Power (milliwatts)
0.02
Maximum Intermittent Power (watts)(<5 minutes)
3
Wavelength Range (micrometers)
0.3 to 2 μm
Maximum Power Density (kilowatts per square centimeter)
500 W/cm2
Maximum Energy Density (millijoules per square centimeter)
50 mJ/cm2 10 ns, 1064 nm
Response Time, Speed-up On, 0% to 95% (seconds)
2
Window
None
Diffuser
Yes
Calibration Uncertainty (%)(k=2)
±2
Power Linearity (%)
±1
Spectral Compensation Accuracy (%)
±1.5
Calibration Wavelength (nanometers)
514
Cable Length (meters)
2.5

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