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10-kilowatt thermoelectric power meter(0.8-2/10.6um) | SIMTRUM Photonics Store

Products / Light Analysis /Optical Power Meter /10-kilowatt thermoelectric power meter(0.8-2/10.6um) /
10-kilowatt thermoelectric power meter(0.8-2/10.6um)
Overview Specifications Power Meter Head Related Products Order Now!
SIMTRUM's kilowatt-class thermoelectric power meter，the spectral range is 0.8-2/10.6um, which can not only cover the common near-infrared band (1064nm fiber laser, 1550nm communication laser, 1940nm medical laser), but also the 10.6um CO₂ laser widely used in industry.
Adopt thermopile sensor technology. When high-power laser irradiates the surface of the thermopile sensor, the laser energy is absorbed and converted into heat energy, creating a temperature gradient in the sensor. Based on the Seebeck effect, the thermopile converts this temperature difference into an electrical signal output.
 
Their measurement range spans from 7kW to 30kW and even higher. To cope with the large amount of heat generated by high-power lasers, the company's kilowatt-level laser power meters utilize microchannel heat dissipation and honeycomb flow channel structures, which greatly improve heat dissipation efficiency. This enables the sensor temperature to stabilize within an appropriate range in a short time, ensuring measurement accuracy and equipment stability.

 

Features

  • Cone structure
  • Water-cooling mode
  • Large detection aperture
  • Optional PC-side USB interface output
  • Maximum continuous measurement power up to kilowatt level

 

Applications

  • Laser processing: laser welding, cutting, cladding
  • Debugging of large-scale laser systems
  • R&D and testing of high-power laser weapons
  • Materials science research
 
Other Accessories

Bracket base

DB-9 plug

Protective case

Specifications

Model LA-CH01-W7K LA-CH01-W10K LA-CH01-W15K LA-CH01-W30K
Spectral Range (μm) 0.8 - 2, 10.6
Power Range 100W - 7kW 100W - 10kW 100W - 15kW 100W - 30kW
Measurement Capability
Resolution (W) 1
Measurement Uncertainty (±%) < 1
Non - linearity (±%) < 2
Accuracy (±%) < 5
Response Time (s) < 3
Absorber Type PT
Detection Aperture (mm) 40 45 55 80
Damage Threshold
Maximum Average Power Density 3kW/cm² 3kW/cm² 6kW/cm² 10kW/cm²
Requirements for
Incident Light Irradiation		 To avoid damage to the probe, the following requirements are put forward for the irradiation position and inclination angle of the incident light beam:
  1. 1. The center of the incident light beam should irradiate the center of the probe cone. The maximum position deviation should not exceed 1/4 of the diameter of the light spot.
  2. 2. The maximum inclination angle of the incident light beam is ± 5 degrees. (for all models)
Physical Characteristics
Specification (mm) Φ137 × 65 Φ146 × 70 Φ170 × 82 Φ229 × 120
Cooling Method Water - cooling (for all models)
Cooling Water Flow (L/min) 5-10 8-10 8-15 10-30
Interface Type DB - 9M DB - 9M DB - 9M DB - 9M
Cable Length (m) 5 5 5 10
 
Dimensions

LA-CH01-W7K

LA-CH01-W10K

 

LA-CH01-W15K

LA-CH01-W30K

P is a professional-grade general-purpose meter head, compatible with all laser power meter probes except industrial-grade ones. It has functions such as "digital display", "data statistics", and "data storage". It can be connected to a PC via USB, and user-side software can be configured, supporting data collection and export.

 

Features

  • Accuracy up to ±0.25%
  • Electromagnetic interference shielding
  • Statistical and averaging functions, long-term stability testing
  • Capable of storing 250,000 measurement data
  • Can be connected to a PC via USB, with configurable user-side software,supporting data collection and export

 
 
 
Specifications
Model LA-CH01-LP - P
Display Form Digital, Bar Graph, Chart
Accuracy (±%) 0.25
Display Type 240 (RGB) × 320 Dot Matrix, TFT - LCD Module
Display Size 65.0mm x 48.8mm (2.56″ x 1.92″)
ADC Sampling Frequency 20Hz
AD Converter 24bit
Plug Type DB - 9F
Digital Interface USB 2.0
Battery Li - Polymer, 3.7V, 4050mAh
Battery Runtime > 40h
Charger / DC Input 5V / 2A
Dimensions (L x W x H) 165mm x 108mm x 25mm
Weight < 0.25kg
Operating Temperature 0 to 40°C
Storage Temperature -10 to 45°C

Model Wavelength range Power range Resolution Sensitivity Accuracy
Thermopile Laser Power Meter 0.19-25 um 100uW-300W Up to 10uW Up to 100uW ＜±2%
Handheld Thermopile Laser Power Meter 0.19-25 um 0.5W-50W Up to100uW Up to 10mW ＜±2%
Photoelectric Laser Power Meter 200-1100 nm 1nW-1000mW Up to1nW 1nW ＜±2%
USB series Laser Power Meter 0.19-25 um 1nW-300W Up to1nW 1nW ＜±2%
Water-cooled laser power meter 0.19-25 um 1-5000W Up to 0.1W / <±4%
10-kilowatt-class thermoelectric power meter 0.8-2 um/10.6um 7KW-30kW 1W / ＜±5%
High damage threshold power meter 0.24-2.2 um 10mW-600W 最高0.5mW / ＜±3%

 


Technical Guide

If you need our technical team for guidance on product selection or customization, please help to provide below technical information, it helps to speed up the process.

Q A Remark
1.What is your application scenario?    
2. What type of laser is measured? CW/pulse If it is continuous laser, the average power needs to be taken into consideration. For pulsed laser, both average power and peak power need to be considered simultaneously
3. What is the laser  wavelength that needs to be measured? eg:1064nm The wavelength range of the photoelectric power meter: 250-2500nm; The wavelength range of the thermoelectric power meter is 0.19-25 μ m.
4. What is the range of laser power measured? eg:100mW Hundred watts,kilowatts, ten thousand watts. Water cooling is generally required for high power
5. What resolution is required? eg:1W  
6. How to choose between thermoelectric and photoelectric power meters?   The thermoelectric power meter is based on the thermoelectric effect. When a laser is shone on the absorber of the
power meter, the temperature rises after absorbing the light energy. The temperature difference is converted into an  electrical signal through the thermoelectric element. The wavelength range of thermoelectric type can reach the
mid-infrared 25um, suitable for medium and high power measurement, up to the ten-thousand-watt level. Meanwhile, due to the time accumulation required for temperature changes, it is suitable for high-power continuous laser measurement with a high damage threshold.

The photoelectric power meter is based on the photoelectric effect. When a laser is shone on the photodetector, the photons are absorbed by the detector material, exciting electron-hole pairs to form a photocurrent. The measurable wavelength range of the photoelectric laser power meter is relatively narrow,which is determined by the material of its detector (e.g. Si:400-1100nm). It usually operates at low power, has a fast response speed, and is suitable for measuring pulsed lasers or rapid fluctuating signals. At the same time, its damage threshold is generally low, so the input optical power should be strictly controlled.
7. Comparison of power meters with different cooling methods?   Natural cooling type laser power meters are generally only suitable for measuring low-power lasers (usually < 50W). After long-term use, the performance drift of the detector may affect the measurement sensitivity.

Air-cooled power meters use fans for heat dissipation and are suitable for medium to high power measurements (typically 50W to 500W).

However, the fans generate noise during operation,making them unsuitable for environments with high noise reduction requirements. Moreover, the fans are susceptible to dust and moisture, and their heat dissipation  efficiency will decline after long-term use.

Water-cooled power meters dissipate heat through circulating water and are suitable for high-power measurements, up to the ten-thousand-watt level. They have extremely high heat dissipation efficiency and can withstand high-power lasers for a long time. However, due to the need for circulating water for heat dissipation, they are bulky and heavy, and cannot be moved easily,making them only suitable for fixed scenarios.
8. How does the damage threshold of a power meter affect its performance?   The damage threshold refers to the maximum laser power density (W/cm²)(continuous light) or energy density (J/cm²) (pulsed light) that the detector can withstand. Exceeding the threshold will cause permanent damage to the power meter and is closely related to the size of the light spot. After focusing, if the light spot becomes smaller, it may exceed the threshold.

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Search Reset
Compare Model Drawings & Specs Availability Reference Price
(USD)
LA-CH01-W7K
Spectral range: 0.8-2/10.6um；Power range: 100W - 7kW; Detection aperture: 40mm; Maximum average power density: 3kW/cm²; Specification: Φ137 × 65mm; Cooling water flow: 5 - 10L/min 		4-6 Weeks Request for quote
LA-CH01-W10K
Spectral range: 0.8-2/10.6um；Power range: 100W - 10kW; Detection aperture: 45mm; Maximum average power density: 3kW/cm²; Specification: Φ146 × 70mm 		4-6 Weeks Request for quote
LA-CH01-W15K
Spectral range: 0.8-2/10.6um； Power range: 100W - 15kW; Detection aperture: 55mm; Maximum average power density: 6kW/cm²; Specification: Φ170 × 82mm; 		4-6 Weeks Request for quote
LA-CH01-W30K
Spectral range: 0.8-2/10.6um Power range: 100W - 30kW; Detection aperture: 80mm; Maximum average power density: 10kW/cm²; Specification: Φ229 × 120mm; 		4-6 Weeks Request for quote

LA-CH01-LP - P - Parameter

LA-CH01-W30K - Parameter

LA-CH01-W15K - Parameter

LA-CH01-W10K - Parameter

LA-CH01-W7K - Parameter

LA-CH01-LP - P - Download

LA-CH01-W30K - Download

LA-CH01-W15K - Download

LA-CH01-W10K - Download

LA-CH01-W7K - Download

Accessories

Compare Model Drawings & Specs Availability Reference Price
(USD)
LA-CH01-LP - P
It has functions such as digital display, data statistics and data storage Accuracy: ±0.25% Digital interface: USB2.0 ADC sampling frequency: 20Hz 		4-6 Weeks Request for quote

Sales Enquiry：+65 6996 0391       Email：info@simtrum.com      

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