Er,Cr:Glass/Er,Cr,Yb:Glass
Erbium and ytterbium co-doped phosphate glass has a broad application because of the excellent properties. Mostly, it is the best glass material for 1.54μm laser due to its eye safe wavelength of 1540 nm and high transmission through atmosphere. It's also suitable for medical applications where the need for eye protection may be difficult to manage or diminish or hinder essential visual observation. Recently it is used in optical fiber communication instead of EDFA for its more super plus. There is a great progress in this field. Erbium Glass doped with Er 3+ and Yb 3+ and suited to applications involving high repetition rates (1 - 6 Hz) and being pumped with 1535 nm laser diodes. This glass is available with high levels of Erbium (up to 1.7%). Erbium Glass doped with Er 3+, Yb 3+ and Cr 3+ and suited to applications involving xenon lamp pumping. This glass is often used in laser range finder (LRF) applications. Rod Diameters: up to 15 mm Diameter Tolerance: +0.0000 / -0.0020 in Length Tolerance: +0.040 / -0.000 in Tilt / Wedge Angle: ±5 min Chamfer: 0.005 ±0.003 in Chamfer Angle: 45 deg ±5 deg
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Overview
Specifications
| Parameter | Value |
|---|---|
| Transformation Temperature [Er,Yb:Glass] | 556 ºC |
| Softening Temperature [Er,Yb:Glass] | 605 ºC |
| Coeff. of Linear Thermal Expansion [Er,Yb:Glass；20~100ºC] | 87 10‾⁷/ºC |
| Thermal Conductivity [Er,Yb:Glass；25ºC] | 0.7 W/m. ºK |
| Chemical Durability [Er,Yb:Glass；100ºC weigh loss rate distilled water] | 52 ug/hr.cm2 |
| Density [Er,Yb:Glass] | 3.06 g/cm2 |
| Laser Wavelength Peak [Er,Yb:Glass] | 1535 nm |
| Cross-section for Stimulated Emission [Er,Yb:Glass] | 0.8 10‾²º cm² |
| Fluorescent Lifetime [Er,Yb:Glass] | 7.7-8.0 ms |
| Refractive Index nD [Er,Yb:Glass；589 nm] | 1.532 |
| Refractive Index nD [Er,Yb:Glass；589 nm] | 1.524 |
| dn/dT [Er,Yb:Glass；20~100ºC] | -1.72 10‾⁶/ºC |
| Thermal Coeff. of Optical Path Length [Er,Yb:Glass；20~100ºC] | 29 10‾⁷/ºC |
| Er 3+ [Er,Yb:Glass] | 1.3×10²⁰/cm3 |
| Yb 3+ [Er,Yb:Glass] | 10×10²⁰/cm3 |
| Transformation Temperature [Er,Yb,Cr:Glass] | 455 ºC |
| Softening Temperature [Er,Yb,Cr:Glass] | 493 ºC |
| Coeff. of Linear Thermal Expansion [Er,Yb,Cr:Glass；20~100ºC] | 103 10‾⁷/ºC |
| Thermal Conductivity [Er,Yb,Cr:Glass；25ºC] | 0.7 W/m. ºK |
| Chemical Durability [Er,Yb,Cr:Glass；100ºC weigh loss rate distilled water] | 103 ug/hr.cm2 |
| Density [Er,Yb,Cr:Glass] | 3.1 g/cm2 |
| Laser Wavelength Peak [Er,Yb,Cr:Glass] | 1535 nm |
| Cross-section for Stimulated Emission [Er,Yb,Cr:Glass] | 0.8 10‾²º cm² |
| Fluorescent Lifetime [Er,Yb,Cr:Glass] | 7.7-8.0 ms |
| Refractive Index nD [Er,Yb,Cr:Glass；589 nm] | 1.539 |
| Refractive Index nD [Er,Yb,Cr:Glass；589 nm] | 1.53 |
| dn/dT [Er,Yb,Cr:Glass；20~100ºC] | -5.2 10‾⁶/ºC |
| Thermal Coeff. of Optical Path Length [Er,Yb,Cr:Glass；20~100ºC] | 3.6 10‾⁷/ºC |
| Er 3+ [Er,Yb,Cr:Glass] | 0.13×10²⁰/cm3 |
| Yb 3+ [Er,Yb,Cr:Glass] | 12.3×10²⁰/cm3 |
| Cr 3+ [Er,Yb,Cr:Glass] | 0.15×10²⁰/cm3 |
Datasheet
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