Er, Yb: Glass

Er,Yb: glass can emit 1535 nm laser and has high stimulated emission cross section, low fluorescence quenching effect and excellent thermal and mechanical properties.

Classification:

Laser Crystals

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Detailed introduction

Er,Yb: glass can emit 1535 nm laser and has high stimulated emission cross section, low fluorescence quenching effect and excellent thermal and mechanical properties.
1535nm laser is safe for human eyes and easy to detect. It has a very low loss in SiO2 fiber transmission and good performance in penetrating smoke, fog and haze. It is widely used in military and civil fields.
The laser made with Er:Yb:Glass has a potential of miniaturization, high frequency, high power, etc. The system is more simple, reliable and easy to maintain.

APPLICATIONS

Laser ranging

Laser radar

Target designation

Optical fiber communication

Environmental sensing and monitoring

Absorption Spectrum

Emission Spectrum

Specification
Size	Diameter:3~12.7mm,Length:3~150mm
Dimension tolerance	±0.05 mm
Flatness	<λ/8@632 nm
Wavefront distortion	<λ/4@632 nm
surface quality	10/5
Parallelism	10〞
Perpendicularity	15 '
Clear aperture	>90%
Chamfer	<0.1×45°

Physical and Chemical Properties
Model	#1	#2
The cross section of stimulated emission (10-20cm² )	0.8	0.75
Fluorescence lifetime (ms)	7.7-8.0	7.7-8.2
Wavelength (nm)	1535	1535
Transition temperature (℃)	1.524	1.528
Softening temperature (℃)	1.532	1.536
Linear thermal expansion coefficient (10^-7/K) (20 ~ 100 ℃)	556	530
Linear thermal expansion coefficient (10^-7/K) (100 ~ 300 ℃)	605	573
Thermal coefficient of Optical path length (10^-6/K)(20~100℃)	87	82
Thermal conductivity coefficient (25 ℃) (W/mK)	95	96
Density (g/cm³)	3.06	2.83
Chemical durability	52	82