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Coherent PM3K+ Laser Power Sensor

Updated:2025-03-13

Brand: Coherent
Model: PM3K+
Description: This PM3K+ sensor is a water-cooled kW laser power sensor intended for measuring lasers up to 3000W. It has a large 50 mm diameter active area, and the spectrally flat BB+ coating is highly resistant
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Product Details

Coherent PM3K+ Laser Power Sensor Description：

Datasheet

This PM3K+ sensor is a water-cooled kW laser power sensor intended for measuring lasers up to 3000W. It has a large 50 mm diameter active area, and the spectrally flat BB+ coating is highly resistant to laser damage.

Water-cooled kW thermopile sensor with BB+ coating for measuring lasers between 5W and 3000W. The sensor is terminated in a SmartSensor DB25 cable and is directly compatible with all power meters in the catalog.

Key Features:

5W to 3000W range

50 mm diameter active area

Spectrally flat broadband BB+ coating

0.19 to 11 μm spectral range

Water-cooled

ISO 17025 accredited

Specifications

Cable Type

PM DB-25

Cooling Type

Water

Power Range

5W to 3000W

Active Area Diameter

50 mm

Detector Coating

BB+

Noise Equivalent Power (milliwatts)

100

Maximum Intermittent Power (watts)(<5 minutes)

3000

Wavelength Range (micrometers)

0.19 to 11

Maximum Power Density (kilowatts per square centimeter)

3.8 to 12

Maximum Energy Density (millijoules per square centimeter)

600, 1064 nm, 10 ns

Response Time, Speed-up On, 0% to 95% (seconds)

Window

None

Diffuser

None

Calibration Uncertainty (%)(k=2)

±3

Power Linearity (%)

±2

Calibration Wavelength (nanometers)

1070, 10600

Cable Length (meters)

Spectral Compensation Accuracy (%)

±1.5

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