Er: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 1.54um laser due to its eye-safe wavelength of 1540 nm and high transmission through atmosphere. The main application for Er:glass laser is for laser range finder and LIDAR.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: is a type of Erbium glass with Yb 3+, Cr:3+, Er 3+ doped phosphate glass for xenon lamp pumping laser device and laser range-finder application.
Properties of Erbium Laser Glass
PROPERTIES
Cr14
EAT14
Lasing Properties
Cross section for stimulated emission (10 -20 cm 2 )
0.8
0.8
Fluorescent lifetime (ms)
7.7-8.0
7.7-8.0
Center lasing wavelength (nm)
1535
1535
Optical Properties
n （ 1535nm ）
1.530
1.524
n d
1.539
1.532
Abbe value
64
66
dn/dT (10 -6 /ºC) (20~100ºC)
-5.2
-1.72
Coeff. of linear thermal expansion (10 -7 /ºC)(20~100ºC)
103
87
Thermal coeff. of optical path length (10 -7 /ºC) （ 20~100ºC ）
3.6
29
Thermal Properties
Transformation temp. (ºC)
455
556
Softening temp. (ºC)
493
605
Thermal conductivity (25ºC) (W/m. K)
0.70
0.70
Coeff. of linear thermal expansion (10 -7 /ºC) (100~300ºC)
127
95
Other Properties
Density (g/cm 3 )
3.10
3.06
Chemical durability (weigh loss rate at 100ºC distilled water) (μg/hr.cm 2 )
103
52
Standard Proucts
Glass Type
Dopping Concentration
Dimension
Coating
Pump Type
EAT14
0.13%Er, 21%Yb
Dia2.2 x 32mm
3x1.5x32mm
AR/AR@ 1540nm
LD, Lamp
0.26%Er, 21%Yb
3x1.5x22mm
3x1.5x20mm
AR/AR@ 1540nm
LD, Lamp
0.5%Er, 21%Yb
3x1.5x10mm
HR1540&HT940
LD
1%Er, 21%Yb
3x1.5x5mm
HR1540&HT940
LD
Cr14
0.13%Er, 0.05%Cr, 20%Yb
Dia3x30mm
AR/AR@ 1540nm
Lamp
