Description
art photonics’ Hollow Glass Waveguides (HWG Series) are advanced fiber solutions designed for efficient, low-loss transmission of infrared (IR) radiation across the 2–18 μm spectral range. Featuring a unique hollow silica glass core, HWG fibers eliminate Fresnel reflection losses at their terminations, ensuring superior beam quality and low divergence compared to conventional solid-core IR fibers. These waveguides are ideal for delivering power from mid-IR laser sources such as Er:YAG, OPO, CO-, and CO₂-lasers.
HWG fibers are available with core diameters of 500 μm, 750 μm, and 1000 μm, and are protected by a double polymer jacket for enhanced mechanical flexibility. Their innovative construction enables high transmittance, minimal bending loss (1 dB at a 360° bend with 400 mm diameter), and excellent thermal tolerance from –50°C to +90°C. With certified performance under DIN EN ISO 9001:2015, these waveguides are perfectly suited for demanding applications in spectroscopy, laser surgery, environmental sensing, and quantum cascade laser systems.
Hollow Glass Waveguides
Specifications
| Core Diameter: | 500 um |
|---|---|
| Wavelength Range: | 2000 – 18000 nm |
| Cable Length: | 0.5 m |
| Fiber Core Material: | Not Specified |
| Glass Capillary: | SiO2 |
| Fresnel Reflection Losses: | 0% |
| Effective NA: | 0.05+/-0.01 |
| Protective Jacket: | Acrylate + Fluoro polymer |
| Outer Diameter: | 650 ± 20 µm |
| Protective Jacket Outer Diameter: | 1000 ± 30 µm |
| Optical Loss At 10.6 µm: | 0.7 dB/m |
| Minimum Bending Radius: | 75 mm |
| Maximum CO₂ Laser Power Handling: | 10 W |
| Bending Loss (360° Loop, Ø = 400 Mm): | 1 dB |
| Effective Numerical Aperture (Output NA): | 0.05 ± 0.01 |
| Operating Temperature Range: | –50 to +90 °C |
| Protective Jacket Material: | Acrylate + Fluoropolymer |
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Features
- Broad Spectral Transmission: Operates efficiently across the 2–18 μm mid-IR range
- No Fresnel Reflection Losses: Hollow core design eliminates end-face reflections
- Low Beam Divergence: Ideal for high-precision laser delivery applications
- Flexible Design: Double polymer coating for high mechanical flexibility
- Multiple Core Sizes: Available in 500 µm, 750 µm, and 1000 µm inner diameters
- Low Bending Loss: Only 1 dB at full 360° bend (Ø 400 mm)
Applications
- Laser Power Delivery: Efficient transmission for Er:YAG, OPO, CO- & CO₂-lasers
- Quantum Cascade Lasers: Flexible coupling for advanced QCL systems
- Spectroscopy: Suitable for gas mixture analysis and mid-IR spectral measurements
- Medical and Industrial Uses: Ideal for laser surgery and process monitoring
Frequently Asked Questions
What is the advantage of using Hollow Silica glass WaveGuides (HWG) for laser power delivery?
What is the recommended maximum power level for CO2-lasers using HWG cables?
What is the operating temperature range for HWG cables?
What is the minimum elastic bending radius for HWG cables?
What are the applications of HWG cables?
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