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Er Glass

Er Glass 2019-11-16T23:42:48+00:00

Erbium and ytterbium Co-doped phosphate glass has a wide application due to its excellent properties. It is the best glass material for 1535 nm laser, mostly due to the porous wavelength of 1535 nm and high transmission in the atmosphere. It is also suitable for medicine.

Explanation

Er glass for 1550nm eye safe laser used for nanosecond range finder with passive or active q-switch and high repeat rates (1-6hz), flash lamps and diode pumped laser system.In dermatology, fractional laser and ance scar, skin, wrinkle and melisma treatment Er glass laser is applied. Different concentration and type (Cr14 and EAT14) can be customized.
Erbium and ytterbium doped phosphate glass has a wide application due to its excellent properties.Mostly, it is the best glass material for 1535 nm laser due to the porous wavelength of 1535 nm and high transmission in the atmosphere. It is also suitable for medical applications where the need for eye protection is difficult to manage, reduce or prevent important visual observations.

We can also produce erbium laser glass with doping various ions according to your need.WM4: Erbium phosphate glass for ion exchange purpose; Cr14: Xenon lamp pumping laser device and Erbium phosphate glass for laser range finder. Er 3+ Co – doped phosphate glass. CrE5 is for large energy output application.

Specifications

• Wide pump band

• High optical quality

• Long wavelength, works in high water peak area

• Ideal for removing hard tissues

• Very high slope efficiency

• Work within a relatively eye-shielding wavelength range

Applications

• Laser Surface Renewal

• Bone surgery

• Tooth use

Chemical and physical properties

Feature value value value value
Products CR14 CrE5 WM4 EAT14
Orientation [100] veya [110] ± 0.5 ° [100] veya [110] ± 0.5 ° [100] veya [110] ± 0.5 ° [100] veya [110] <± 0.5 °
Bulk density 3,10 g / cm 3 2,95 g / cm 3 2,83 g / cm 3 3,06 g / cm 3
Mohs hardness 8.5 8.5 8.5 8.5
Young’s module 57,6 GPa 57,6 GPa 57,6 GPa 57,6 GPa
Tensile strength 2 GPa 2 GPa 2 GPa 2 GPa
Melting point 1970 ° C 1970 ° C 1970 ° C 1970 ° C
Thermal conductivity 0.70 0.80 0.70 0.70
Specific Heat/ (J · g -1 · K -1 ) 0.59 0.59 0.59 0.59
Thermal Expansion/ (10 -6 / ° C @ 25 ° C) 127 87 96 95
Thermal shock resistance parameter 800 W / m 800 W / m 800 W / m 800 W / m
Refractive Index @ 1535 nm 1,530 1,533 1,528 1,524

Optical properties

feature value
Optical density 0,1 ila 0,8
Fluorescence life 7.7-8.2 ms
concentrations % 0.5 mol% ~ 3 mol%
Emission wavelength 1535 nm
Coefficient of absorption 1,0 cm -1 ~ 7 cm -1
Emission state absorption cross section: 0,75×10-20 cm 2 @ 1535nm
transmission % 10 ila% 90
coatings AR≤% 0.2 @ 1535nm
Damage Threshold: > 500 MW / cm 2

Polishing properties

feature value
Orientation Tolerance <0,5 °
Thickness / Diameter Tolerance ± 0,05 mm
Surface Flatness <λ / 832 nm
Ripple Distortion <λ / 4 @ 632 nm
Surface quality 05/10
Parallel 10 “
Perpendicular 15′
Open aperture >% 90
groove <0.1 x 45 °
Maximum dimensions dia (3-12.7) × (3-150) mm 2