Key Features:
- High thermal and chemical durability
- High conversion efficiency with low up conversion loss
- Emission at the eye-safe 1535 nm wavelength
- Broad applications in LiDAR, range-finding, and telecommunications
Description: Er³⁺, Yb³⁺ co-doped phosphate glass, also known as Er,Yb:Glass, is a high-performance laser glass material with excellent overall properties. It emits at the eye-safe 1535 nm wavelength, making it ideal for applications in LiDAR, range-finding, 3D imaging, and target recognition. The addition of Cr³⁺ in Er,Yb,Cr:Glass improves the pumping efficiency by increasing the absorption of pump energy, making these glasses highly efficient for various optical applications.
Physical Properties:
| Property | Unit | Er,Yb:Glass | Er,Yb,Cr:Glass |
|---|---|---|---|
| Transformation Temperature | °C | 566 | 455 |
| Softening Temperature | °C | 605 | 493 |
| Linear Thermal Expansion Coefficient (20-200°C) | 10⁻⁷/°C | 87 | 103 |
| Thermal Conductivity (25°C) | W/m·K | 0.7 | 0.7 |
| Chemical Durability (100°C water weight loss) | µg/hr·cm² | 52 | 103 |
| Density | g/cm³ | 3.06 | 3.1 |
Optical Properties:
| Property | Unit | Er,Yb:Glass | Er,Yb,Cr:Glass |
|---|---|---|---|
| Laser Wavelength Peak | nm | 1535 | 1535 |
| Absorption Cross-section | 10⁻²⁰ cm² | 0.8 | 0.8 |
| Fluorescence Lifetime | ms | 7.7-8.0 | 7.7-8.0 |
| Refractive Index (@1535 nm) | – | 1.532 | 1.539 |
| Refractive Index (@589 nm) | – | 1.524 | 1.53 |
| dn/dT (20-200°C) | 10⁻⁶/°C | -1.72 | -5.2 |
| Photothermal Deflection | 10⁻⁷/°C | 29 | 3.6 |
Standard Specifications:
| Property | Specification |
|---|---|
| Orientation | Random |
| Diameter | Customizable |
| Thickness | Customizable |
| Surface Quality | 10/5 Scratch/Dig (MIL-PRF-13830B) |
| Surface Flatness | λ/8 at 632.8 nm over 90% aperture |
| Parallelism | < 10 arc seconds |
| Perpendicularity | < 10 arc minutes |
| Coating | AR@ (R<1%) @940 nm + AR(R<0.25%) @1480-1600 nm |
Other Properties:
- High chemical durability ensures longevity in harsh environments.
- Excellent thermal stability supports high-power laser operations.
Applications:
- LiDAR for distance measurement
- 3D imaging and target recognition
- Optical communication systems
- Eye-safe laser systems
- Medical laser applications
- Remote sensing and environmental monitoring
Processing and Handling:
- Er,Yb:Glass and Er,Yb:Glass ,Cr:Glass require careful handling to avoid surface damage and contamination.
- Use gloves or finger cots when handling glass components.
- Store in a clean, dry environment with temperature control to prevent thermal shock.
Why Choose Shape Optics:
- We provide high-quality Er,Yb:Glass and Er,Yb,Cr:Glass with precise doping concentrations and excellent optical properties.
- Our glasses undergo stringent quality control to ensure reliability and performance in demanding applications.
Shape Optics Strength and Capabilities:
- Expertise in glass growth and fabrication techniques.
- Advanced metrology and inspection facilities to ensure superior product quality.
- Customization options available to meet specific requirements.
- Comprehensive support and consultation services to assist in the integration of Er,Yb:Glass and Er,Yb,Cr:Glass into various optical systems.