Er:Glass EAT14
Erbium and ytterbium co-doped phosphate glass has a broad application because of the excellent properties. Mostly, it is the best glass material for 1.54um laser due to its eyesafe 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. We can also produce erbium laser glass with various ions doping according to your requirement. We have three kinds of Erbium-doped glasses for different use, EAT14, Cr14 . EAT14: Yb 3+ , Er 3+ co-doped phosphate glass, which is applicable in high repetition rate (1-6Hz) laser diode pumped 1535nm laser. High Yb 3+ doping can be realized to this EAT14 glass. Cr14: Yb 3+, Cr:3+, Er 3+YbErbium phosphate glass for xenon lamp pumping laser device and laser range-finder The fluorescent lifetime will have some change according to the erbium concentrations.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Cross section for stimulated emission (10 -20 cm 2 ) | 0.8 10 -20 cm 2 |
| Fluorescent lifetime | 7.7-8.0 ms |
| Center lasing wavelength | 1535 nm |
| n （ 1535nm ） | 1.524 |
| n d | 1.532 |
| Abbe value | 66 |
| dn/dT (10 -6 /ºC) (20~100ºC) | -1.72 10 -6 /ºC |
| Coeff. of linear thermal expansion (10 -7 /ºC)(20~100ºC) | 87 10 -7 /ºC |
| Thermal coeff. of optical path length (10 -7 /ºC) （ 20~100ºC ） | 29 10 -7 /ºC |
| Transformation temp. | 556 ºC |
| Softening temp. | 605 ºC |
| Thermal conductivity (25ºC) | 0.70 W/m. K |
| Coeff. of linear thermal expansion (10 -7 /ºC) (100~300ºC) | 95 10 -7 /ºC |
| Density | 3.06 g/cm3 |
| Chemical durability (weigh loss rate at 100ºC distilled water) (μg/hr.cm 2 ) | 52 μg/hr.cm 2 |
| Standard Doping-Er3+ [0.13%:Er:Yb:Glass] | 1.3x10^19/cm3 |
| Standard Doping-Yb3+ [0.13%:Er:Yb:Glass] | 2x10^21/cm3 |
| Standard Doping-Er3+ [0.26%:Er:Yb:Glass] | 2.6x10^19/cm3 |
| Standard Doping-Yb3+ [0.26%:Er:Yb:Glass] | 2x10^21/cm3 |
| Standard Doping-Er3+ [0.5%:Er:Yb:Glass] | 5x10^19/cm3 |
| Standard Doping-Yb3+ [0.5%:Er:Yb:Glass] | 2x10^21/cm3 |
| Standard Doping-Er3+ [1%:Er:Yb:Glass] | 10x10^19/cm3 |
| Standard Doping-Yb3+ [1%:Er:Yb:Glass] | 2x10^21/cm3 |
Datasheet
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