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| Categories | Laser Glass |
|---|---|
| Place of Origin: | China |
| Brand Name: | CRYLINK |
| Certification: | Iso9001 |
| MOQ: | 1 Pieces |
| Price: | negotiation |
| Packaging Details: | Carton |
| Delivery Time: | 3-4 weeks |
| Payment Terms: | TT |
| Supply Ability: | 100 pieces /month |
| Name: | Er,Cr,Yb:Glass |
| Mohs Hardness: | 8.5 |
| Young’s Modulus: | 57.6 GPa |
| Tensile Strength: | 2 GPa |
Erbium Glass doped with Er3+, Yb3+ and Cr3+, Erbium doped glass laser provides a useful coherent source in the spectral range near 1.5 m, which is relatively safe for the human eye and is convenient in many applications, such as lidar and range measurements, fiber-optic communication, and laser surgery. In spite of the considerable progress in the development of InGaAs laser diode pump sources, Xe flashlamp will continue to be used as pump sources of Er:glass lasers because of their high reliability and low cost, and also the simplicity of design of such systems. Since about half the flashlamp radiation energy is emitted in the visible and near infrared (IR) ranges, a second sensitizer Cr3+ is introduced into Yb-Er laser glasses to utilize this energy.
| Materials | Cr14 | CrE5 |
| Orientation | [100] or [110]±0.5° | [100] or [110]±0.5° |
| Mass Density | 3.10 g/cm3 | 2.95 g/cm3 |
| Mohs Hardness | 8.5 | 8.5 |
| Young’s Modulus | 57.6 GPa | 57.6 GPa |
| Tensile Strength | 2 GPa | 2 GPa |
| Melting Point | 1970°C | 1970°C |
| Thermal Conductivity | 0.7 | 0.8 |
| Specific Heat/(Jg-1K-1) | 0.59 | 0.59 |
| Thermal Shock Resistance Parameter | 800 W/m | 800 W/m |
| Thermal Coeff. of Optical Path Length (10-7 /C)(20~100C) | 3.6 | |
| Coeff.of Linear Thermal Expansion (10-7 /K) (20~100℃) | 103 | 80.5 |
| Coeff.of Linear Thermal Expansion (10-7 /K) (100~300℃) | 127 | 87 |
| Softening Temp. (C) | 493 | 519 |
| Transformation Temp. (C) | 455 | 476 |
| Chemical Durability (weigh loss rate at 100C distilled water) (g/hr.cm2 ) | 103 | |
| dn/dT (10-6 /C) (20~100C) | -5.2 | -6.8 |
| Refractive Index @ 1535 nm | 1.53 | 1.533 |
| Refractive Index (d 589.3nm) | 1.539 | 1.541 |
| Abbe Value | 64 | 63.6 |
| Optical Density | 0.1 to 0.8 |
| Fluorescence Lifetime | 7.7-8.2 ms |
| Concentrations | 0.5 mol % ~ 3 mol % |
| Emission Wavelength | 1535 nm |
| Absorption Coefficient | 1.0 cm-1 ～ 7 cm-1 |
| Emission State Absorption Cross Section | 0.75×10-20 cm2@1535nm |
| Transmission | 10% to 90% |
| Coatings | AR≤ 0.2% @1535nm |
| Damage Threshold: | > 500 MW / cm2 |
| Orientation Tolerance | < 0.5° |
| Thickness/Diameter Tolerance | ±0.05 mm |
| Surface Flatness | </8@632 nm |
| Wavefront Distortion | </4@632 nm |
| Surface Quality | 10-5(MIL-O-13830A) |
| Parallel | 10 |
| Perpendicular | 15 |
| Clear Aperture | >90% |
| Chamfer | <0.1×45° |
| Maximum Dimensions | dia (3-12.7)×(3-150)mm2 |
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