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Excelitas Technologies |
LASER HEAD (40136), 1.15UM, 1.0M |
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Excelitas Technologies |
LASER SYSTEM, 543NM, 0.5MW, POL |
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Excelitas Technologies |
LASER SYSTEM, 543NM, 0.5MW, RAN |
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Excelitas Technologies |
RED HENE LASER 633NM 5.0MW |
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Excelitas Technologies |
RED HENE LASER 633 NM 5.0 MW |
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Excelitas Technologies |
LASER HEAD (39581), 543NM, 1.0MW |
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Excelitas Technologies |
LASER SYSTEM, 1.52UM, 1.0MW, POL |
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Excelitas Technologies |
RED HENE LASER 633 NM 2.0 MW |
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Excelitas Technologies |
RED HENE LASER 633 NM 1.5 MW |
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Excelitas Technologies |
LASER HEAD (31005), 633NM, 1.5MW |
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Excelitas Technologies |
LASER SYSTEM, 633/1523NM, 1.0MW, |
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Excelitas Technologies |
LASER HEAD (30992), 633NM, 12.0M |
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Excelitas Technologies |
LASER HEAD (40094), 594NM, 1.0MW |
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Excelitas Technologies |
LASER SYSTEM, 1.15UM, 1.0MW, POL |
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Excelitas Technologies |
LASER SYSTEM, 594NM, 1.0MW, POL |
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Excelitas Technologies |
LASER SYSTEM, 543NM, 0.5MW, MULT |
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Excelitas Technologies |
RED HENE LASER 633NM 17.0MW |
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Excelitas Technologies |
LASER SYSTEM, 633NM, 0.5MW, RAN |
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Excelitas Technologies |
LASER SYSTEM, TUNABLE, 115V |
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Excelitas Technologies |
LASER HEAD (30991), 633NM, 5.0MW |
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HeNe (Helium-Neon) Laser Modules are gas laser systems that utilize a mixture of helium and neon gases as the gain medium. These modules emit coherent light in the visible spectrum, primarily at 632.8 nm (red), and are renowned for their stability, narrow linewidth, and high beam quality. HeNe lasers play critical roles in precision measurement, spectroscopy, and optical alignment due to their exceptional coherence properties.
| Type | Functional Features | Application Examples |
|---|---|---|
| Standard HeNe Modules | Continuous-wave (CW) operation, fixed wavelength, moderate power (1-10 mW) | Barcode scanners, basic interferometry |
| High-Precision Modules | Ultra-stable frequency, active stabilization, sub-MHz linewidth | Atomic clocks, gravitational wave detection |
| Compact Modules | Miniaturized design, integrated power supply, low power consumption | Portable spectrometers, educational kits |
| Tunable HeNe Modules | Adjustable wavelength (632-633 nm range), piezoelectric mirror control | Laser microscopy, biomedical imaging |
Typical HeNe laser modules consist of: - Gain Medium: Sealed glass tube containing He/Ne gas mixture (7:1 ratio) - Optical Resonator: High-reflectivity dielectric mirrors (R > 99.9%) with radius of curvature 0.5-5 m - Pump System: DC discharge electrodes with ballast resistor network - Optical Window: Brewster-angle fused silica windows for linear polarization - Thermal Management: Aluminum alloy heat sink with passive cooling - Control Electronics: Constant-current power supply (5-15 kV startup voltage)
| Parameter | Typical Range | Importance |
|---|---|---|
| Output Power | 0.5-100 mW | Determines measurement range and signal-to-noise ratio |
| Wavelength Accuracy | 0.001 nm | Critical for spectroscopic applications |
| Linewidth | 1-100 kHz | Impacts interferometric precision |
| Beam Divergence | 0.5-2.0 mrad | Affects focusing capabilities |
| Operating Temperature | 10-40 C | Ensures wavelength stability |
| MTBF | 20,000-50,000 hours | System reliability indicator |
Primary industries and equipment: - Scientific Research: Michelson interferometers, holography systems - Medical Diagnostics: Flow cytometers, retinal imaging devices - Industrial Metrology: Precision alignment systems, surface profilometers - Telecommunications: Fiber optic testing equipment - Education: Laser physics demonstration kits
| Manufacturer | Representative Product | Key Specifications |
|---|---|---|
| Honeywell | HNL150L | 35 mW, 632.8 nm, <0.1 nm linewidth |
| Thorlabs | HNL210L | 10 mW, tunable wavelength, SM05 threaded output |
| Melles Griot | 05-LHP-999 | 50 mW, ultra-stable, 0.0002 nm stability |
| CVI Laser | 3500GS | 5 mW, compact design, 12 VDC operation |
Key considerations: - Match output power to detection system sensitivity requirements - Select wavelength stability level based on measurement accuracy needs - Verify thermal drift specifications for industrial environments - Prioritize MTBF ratings for 24/7 operational systems - Consider form factor compatibility with existing optical mounts - Evaluate polarization extinction ratio (>100:1 recommended for interferometry)
Current development directions include: - Miniaturization to <10 mm form factors through microfabrication - Integration with photonic integrated circuits (PICs) - Enhanced wavelength stabilization using Zeeman splitting techniques - Development of green HeNe alternatives (543.5 nm) for biological applications - Smart laser modules with embedded IoT-enabled diagnostics - Cost reduction through automated manufacturing processes