Laser Cutting Engraving Marking 35mW Hene Laser Power Supply 110-220V
He-Ne Laser Power Supply Product Overview This 35mW Helium-Neon (He-Ne) Laser Power Supply is a high-performance, precision DC driver designed to excite and regulate 35mW He-Ne laser tubes operating at 633 nm (red wavelength). As one of the most powerful commercial He-Ne power supplies available, it ...
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He-Ne Laser Power Supply
Product Overview
This 35mW Helium-Neon (He-Ne) Laser Power Supply is a high-performance, precision DC driver designed to excite and regulate 35mW He-Ne laser tubes operating at 633 nm (red wavelength). As one of the most powerful commercial He-Ne power supplies available, it is ideal for demanding applications including metrology, flow cytometry, confocal microscopy, particle measurement, and interferometry .
The power supply features universal AC input (110–240 VAC, 50/60 Hz), comprehensive protection circuits, and stable current regulation to ensure consistent 35mW optical output. It is compatible with major He-Ne laser head models including Newport N-LHP-928, N-LHP-928J, and Pacific Lasertec 25-LHP-928 series .
Key Features
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35mW Output Support: Specifically designed for high-power He-Ne laser tubes up to 35mW optical output.
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Universal AC Input: Operates on 110–240 VAC, 50/60 Hz for worldwide compatibility.
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Stable Current Regulation: Maintains consistent discharge current for stable optical output.
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Comprehensive Protections: Over-voltage, over-current, short-circuit, and open-circuit protection.
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Compact Design: Standard 1U-style enclosure for easy rack or benchtop integration.
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Long Lifetime: Supports He-Ne tube lifetimes exceeding 20,000–40,000 hours .
Technical Specifications
| Parameter | Value | Condition / Note |
|---|---|---|
| Input | ||
| Supply Voltage | 110 / 220 / 240 VAC ±10% | 50/60Hz, selectable or auto-ranging |
| Max Input Power | < 150 W | |
| Max Input Current | 1.5A (at 110VAC) | |
| Output (to He-Ne Tube) | ||
| Output Voltage (Starting) | > 5,000 VDC | Typical ignition voltage |
| Output Voltage (Operating) | 1,500 – 2,500 VDC | Depends on tube length/gas mixture |
| Output Current | 4 – 8 mA | Regulated, adjustable |
| Ripple / Noise | < 1.0% p-p | |
| Compatible Laser Heads | ||
| Newport / Spectra-Physics | N-LHP-928, N-LHP-928J, N-LHR-993 | |
| Pacific Lasertec | 25-LHP-928 series | |
| Other | Most 35mW He-Ne tubes with standard interfaces | |
| Control & Interface | ||
| Control Interface | DB-9 / Terminal Block | Laser on/off, interlock, current monitor |
| Remote Interlock | Yes | External safety interlock input |
| Status Indicators | Power, Laser Ready, Fault | LED indicators |
| Protection & Environment | ||
| Protections | Over-voltage, Over-current, Short-circuit, Open-circuit, Thermal shutdown | Auto-recovery |
| Cooling Method | Convection cooling | Fanless for noise-sensitive applications |
| Operating Temperature | 0°C to +40°C | |
| Storage Temperature | -20°C to +70°C | |
| Relative Humidity | 0 – 95% (non-condensing) | |
| Physical | ||
| Dimensions (L×W×H) | 241 × 160 × 54 mm | Approximate (standard 1/2U rack width) |
| Weight | 1.2 – 1.5 kg | |
| High Voltage Cable Length | 1.0 – 1.5 meters | Included, with Alden-style connector |
Laser Head Compatibility & Specifications
When paired with a compatible 35mW He-Ne laser head, the system achieves the following optical performance:
| Parameter | Value |
|---|---|
| Wavelength | 632.8 nm (red) |
| Output Power | 35.0 mW (minimum) |
| Polarization | 500:1 linear or random (depending on model) |
| Spatial Mode | TEM00 |
| Beam Diameter (1/e²) | 1.23 mm |
| Beam Divergence (full angle) | 0.66 mrad |
| Beam Drift (long-term) | < 0.03 mrad |
| Longitudinal Mode Spacing | 165 MHz |
| CDRH Classification | Class 3B |
Applications
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Metrology & Interferometry: Precision length measurement, alignment, and calibration
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Flow Cytometry: Cell sorting and analysis in biomedical research
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Confocal Microscopy: High-resolution fluorescence imaging
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Particle Measurement: Aerosol and particle size analysis
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Holography: Recording and reconstruction of holograms
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Semiconductor / Wafer Inspection: Defect detection and quality control
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Raman Spectroscopy: Excitation source for chemical analysis
