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Explanation of using 5kW Laser Power Meter and correlation of contrasting 2kW and 5kW water-cooled power meter sensors

Author: Time:2024-07-17

It is often necessary to use high-power lasers in the laser processing industry.For the sake of conforming to the times, Highlight Optics has designed and launched a new 5 kW high power water-cooled laser power meter. Highlight Optics presents 8 models of water-cooled power meter sensors: Stellar W1000-HP-25, Stellar W2000-HP-25, Lynk-USB-W200-HP-25, Lynk-RS232-W200-HP-25, Lynk-USB-W1000-HP-25, Lynk-RS232-W1000-HP-25, Stellar W2000-HPB-50, Stellar W5000-HPB-50.Its water-cooled laser power meters are designed with safety and protection in mind.


Water-cooled sensors / water-cooled power meter sensors use water-cooled probes, it must be required that the flow rate of the cooling water is not lower than the value required for the probe.The common principle is to direct the laser beam into a water-cooled system, while using the heat-absorbing capacity of the water to cool the laser and measure the power.Water-cooled laser power meters are available in the power range of 1-5 kW with effective apertures of 25 mm and 50 mm.


Characteristics of 5 kW water-cooled laser power meter

  Water cooling

  Load capacity highing

  USB connection to computer via software

  Amendments NIST Traceability

  Fast response time (10 second response time from 0-95% of head for 5 kW probe)


Specifications for two different models of water-cooled laser power meters

Parameters

W2000-HPB-50

W5000-HPB-50

Maximum detectable power

2 kW

5 kW

Minimum detectable power

20 W

50 W

Power resolution

1 W

10 W

Noise equivalent power

2 W

5 W

Response time

10 sec

10 sec

Power linearity

±5%

±5%

Power calibration uncertainty

±2%

±2%

Clear Aperture

50 mm

50 mm

Heat absorbing film material

HPB

HPB

Absorption spectra

0.19-11 μm

0.19μm-11 μm

Calibration spectral range

0.19-2.1 μm2.94 μm9-11 μm

0.19-2.1 μm2.94 μm9-11 μm

Maximum power density

2KW/cm@2 kW

2KW/cm@2 kW

Cooling

water-cooling

water-cooling

Minimum and recommended flow rates at maximum power

8 L/min11 L/min

8 L/min11 L/min

Weight

4 kg

4 kg

Dimensions

Φ148×55 mm

Φ148×55 mm

Cable length

5 m-USB

5 m-USB


Attention please!

The input beam diameter should be at least half the size of transparent aperture/water-cooled power meter sensor/water-cooled sensor.


The water-cooled power meter sensor has an effective aperture of 50 millimetres which is twice the effective aperture of the original 200 watt, 1 kilowatt and 2 kilowatt water-cooled sensors. The new 5 kW water-cooled laser power meter has a maximum average power of 5 kW, a minimum power of 50 watts and a power resolution of 10 watts.The new 2 kW and 5 kW water-cooled power sensors have a minimum flow rate of 8 l/min at maximum power and a recommended flow rate of 11 l/min.


The W2000-HPB-50 and W2000-HP-25 are both 2 kW water-cooled laser power meters, with the difference being that the W2000-HPB-50 water-cooled sensor is larger, has a larger effective aperture, and a longer USB connection.The W2000-HPB-50 and W2000-HP-25 have different maximum power densities, with the W2000-HPB-50 having a maximum power density of 2KW/cm2 @2 kW and the W2000-HP-25 having a maximum power density of 500W/cm2 @1 kW.At maximum power, the W2000-HPB-50 has a minimum water flow rate of 8L/min more than twice that of the W2000-HP-25.

 

Both the W2000-HPB-50 and the W2000-HP-25 are 2 kW, and also have the same maximum and minimum measured power and power resolution.


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