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Coherent PowerMax-RS LM-45 Laser Power Sensor

Updated:2025-03-13

Brand: Coherent
Model: PowerMax-RS LM-45
Description: RS232-enabled, 100 mW to 25W laser power sensor with beam position sensing, 0.25 to 10.6 μm spectral range, 19 mm diameter active area.
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Product Details

Coherent PowerMax-RS LM-45 Laser Power Sensor Description：

Datasheet User's Manual

This PowerMax-RS LM-45 sensor is terminated in an RS232 cable that interfaces directly to a PC or industrial controller. A DB25 model (PN 1098320) is available.

These unique position sensing thermopiles display the position of the incident beam on the sensor disk, in addition to measuring power. This information allows the user to safely and precisely align the sensor and the beam being measured. This is particularly useful for non-visible beams.

SMA fiber adapter (PN 1098589) and FC/PC fiber adapter (PN 1098339) accessories are available when used with 1.035-40M Adapter Ring (PN 33-9432-000).

Key Features:

100 mW to 25W range

19 mm diameter active area

Beam position measurement

Capable of 45W intermittently for up to 5 minutes

Spectrally flat broadband coating

0.25 to 10.6 μm spectral range

Convective air-cooled

Fiber adapters available

Direct RS232 interface

ISO 17025 accredited

Specifications

Cable Type

RS232

Cooling Type

Air

Power Range

100 mW to 25W

Active Area Diameter

19 mm

Detector Coating

Broadband

Noise Equivalent Power (milliwatts)

Maximum Intermittent Power (watts)(<5 minutes)

Long-Pulse Joules Range (joules)

0.5 to 50

Wavelength Range (micrometers)

0.25 to 10.6 μm

Maximum Power Density (kilowatts per square centimeter)

6 kW/cm2

Maximum Energy Density (millijoules per square centimeter)

600 (10 ns, 1064 nm)

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

Window

None

Diffuser

None

Calibration Uncertainty (%)(k=2)

±2

Power Linearity (%)

±1

Spectral Compensation Accuracy (%)

±1.5

Calibration Wavelength (nanometers)

10600

Cable Length (meters)

0.3

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