Name: | Erbium Doped Phosphate Glasses | Apply: | For LD Pump |
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Feature: | Stimulated Emission Cross Section | Certify: | Iso9001 |
Highlight: | erbium doped glass,nd glass |
Stimulated emission cross section
Narrow fluorescence line
High pump efficiency
Short fluorescence lifetime
Low oscillation threshold
Using Glass
WM4: Erbium phosphate glass for ion-exchange purpose;
EAT14: Yb3+, Er3+ co-doped phosphate glass, which is applicable in high repetition rate(1-6Hz) laser diode pumped 1535 laser. High Yb3+ doping can be realized in this EAT14 glass.
@1550nm: Fiber has minimum dispersion and small loss |
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LD pumped solid-state laser |
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Eye-safe Laser Rangefinder Direct output 1.54μm human eye laser, suitable for handheld or vehicle laser rangefinder |
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Properties | EAT14 | WM4 |
Laser Specifications | ||
Cross section for stimulated emission (10-20cm2) | 0.8 | 0.75 |
Fluorescent lifetime (ms)* | 7.7-8.0 | 7.7-8.2 |
Center lasing wavelength (nm) | 1535 | 1535 |
Optical Specifications | ||
Refractive index (1535nm) | 1.524 | 1.528 |
Refractive index (d 589.3nm) | 1.532 | 1.536 |
Abbe value | 66 | 66 |
dn/dT (10-6/℃) (20~100℃) | -1.72 | -3 |
Thermal Specifications | ||
Transformation temp. (℃) | 556 | 530 |
Softening temp. (℃) | 605 | 573 |
Coeff.of linear thermal expansion (10-7/K) (20~100℃) | 87 | 82 |
Coeff.of linear thermal expansion (10-7/K) (100~300℃) | 95 | 96 |
Thermal Coeff.of optical path length (10-6/K) (20~100℃) | 2.9 | 1.4 |
Thermal conductivity (25℃) (W/mK) | 0.7 | 0.7 |
Other Specifications | ||
Density (g/cm3) | 3.06 | 2.83 |
Chemical durability (weigh loss rate at 100℃ distilled water) (μg/hr.cm2) | 52 | 82 |