Auniontech AUT-500W-W High-Power Laser Power Meter
| Brand | Auniontech |
|---|---|
| Origin | Shanghai, China |
| Model | AUT-500W-W |
| Spectral Range | 0.19–25 µm |
| Max Continuous Power | 500 W |
| Max Intermittent Power | 600 W (1 min), 500 W (2 min) |
| Max Avg. Power Density | 20 kW/cm² |
| Max Energy Density | 0.3 J/cm² (1064 nm, 1 ns) |
| Aperture | 40 mm |
| Resolution | 20 mW |
| Nonlinearity | ±1.5% |
| Accuracy | ±3% |
| Response Time | <3 s |
| Cooling | Water-cooled |
| Interface | DB-9M |
| Cable Length | 1.5 m |
Overview
The Auniontech AUT-500W-W High-Power Laser Power Meter is a thermopile-based optical measurement instrument engineered for precise, real-time quantification of continuous-wave (CW) and high-energy pulsed laser output in industrial and research environments. Operating on the principle of thermal absorption and Seebeck-effect voltage generation, the detector converts incident laser energy into a proportional electrical signal with minimal wavelength dependence across an exceptionally broad spectral band—from deep ultraviolet (190 nm) to far-infrared (25 µm). This wideband responsivity enables reliable power measurement for CO₂ lasers (10.6 µm), fiber lasers (1.06–1.55 µm), excimer lasers (193–351 nm), quantum cascade lasers, and ultrafast Ti:sapphire systems—without requiring interchangeable sensors or calibration offsets. Designed for integration into laser processing workstations, R&D test benches, and OEM laser systems, the AUT-500W-W delivers stable, drift-compensated readings under sustained high-flux irradiation, supported by active water cooling to maintain thermal equilibrium and measurement integrity at up to 500 W CW.
Key Features
- Thermopile sensor with 40 mm clear aperture, optimized for uniform spatial response and minimal edge diffraction effects
- Maximum average power density tolerance of 20 kW/cm²—validated per ISO 11554 for high-intensity beam characterization
- Water-cooling architecture enabling continuous operation at rated 500 W, with thermal stabilization time <60 s after power-on
- Dual-mode readout: integrated digital display head (optional) or direct PC connectivity via DB-9M serial interface with RS-232 protocol compliance
- Single-pulse energy measurement capability (down to 1 ns pulse width at 1064 nm), supporting quantitative analysis of Q-switched and mode-locked sources
- Factory-calibrated traceability to NIM (National Institute of Metrology, China); calibration certificates include uncertainty budgets per ISO/IEC 17025 requirements
Sample Compatibility & Compliance
The AUT-500W-W is compatible with collimated or gently focused free-space laser beams meeting ANSI Z136.1 alignment and safety guidelines. Its absorber coating exhibits minimal reflectivity (<0.5%) across the full 0.19–25 µm range, reducing measurement artifacts from specular reflection or standing-wave interference. The device conforms to IEC 61000-6-3 (EMC emission limits) and IEC 61000-6-2 (immunity standards), and its mechanical housing meets IP54 ingress protection for operation in controlled laboratory and light-industrial settings. While not certified for FDA 21 CFR Part 11 compliance out-of-the-box, audit-ready data logging—including timestamped readings, operator ID fields, and checksummed binary exports—is achievable when paired with validated third-party software compliant with GLP/GMP documentation workflows.
Software & Data Management
The meter supports ASCII-based serial communication (9600 baud, 8N1) for seamless integration with LabVIEW, MATLAB, Python (PySerial), or custom SCADA platforms. A Windows-compatible configuration utility provides real-time graphing, statistical averaging (mean, std dev, min/max over user-defined intervals), and CSV export with metadata headers (wavelength, exposure duration, ambient temperature). Raw data streams include 16-bit resolution values with hardware-level zero-drift compensation applied onboard. For regulated environments, optional firmware upgrades enable secure session authentication and encrypted data-at-rest storage—facilitating alignment with ISO 13485 quality management system requirements for medical laser validation.
Applications
- Laser material processing: real-time monitoring of cutting/welding head output stability during multi-kilowatt fiber laser operations
- Ultrafast laser characterization: single-shot energy verification for amplified Ti:sapphire and Yb-doped systems operating at kHz–MHz repetition rates
- Optical component damage testing: quantifying threshold fluence and power density limits of coatings, windows, and nonlinear crystals
- Industrial laser safety auditing: periodic verification of OEM-specified output against EN 60825-1 Class 4 hazard classification criteria
- Academic photonics labs: beam profiling correlation studies where power meter data anchors M² and BPP calculations
- Additive manufacturing process control: closed-loop feedback integration for selective laser melting (SLM) and laser metal deposition (LMD) systems
FAQ
What is the recommended warm-up time before achieving specified accuracy?
Minimum 15 minutes at ambient temperature (23 ± 2 °C) with water coolant flow stabilized at ≥1.2 L/min.
Can this meter measure both CW and pulsed lasers simultaneously?
No—it operates in either CW averaging mode or single-pulse energy mode; mode selection is hardware-configured via DIP switches on the rear panel.
Is NIST-traceable calibration available as an option?
Yes—Auniontech offers optional factory recalibration with NIM-traceable certificate (uncertainty ≤ ±2.5% k=2) valid for 12 months.
Does the water-cooling system require deionized water?
Yes—use of DI water (resistivity ≥1 MΩ·cm) is mandatory to prevent mineral buildup and thermopile corrosion; standard tap water voids warranty.
How is linearity verified across the full 0.5 W–500 W range?
Linearity assessment follows ASTM E2758 using calibrated reference standards at 10%, 50%, and 100% of full scale, with interpolation error bounded per manufacturer’s Type B uncertainty model.
