Er,Yb:Phosphate Glass, Yb 20%/Er 0.5%, AR Coating
Er3+, Yb3+ co-doped phosphate glass is a commonly used active medium for lasing in the "eye-safe" spectral range of 1.5–1.6 µm. Phosphate glasses combine the long lifetime of the lasing level on 4I13/2 Er3+ with the low lifetime of the 4I11/2Er3+ level that resonates with the Yb3+ 2F5/2 excited state. We offer Er,Yb:Phosphate Glass in various specifications.
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Catalog Number
ACMA00027516
Product Name
Er,Yb:Phosphate Glass, Yb 20%/Er 0.5%, AR Coating
Wedge Of Ends
Right angle cut
DimensionTolerance
W±0.1mm/H±0.1mm/L±0.2mm
Coating
AR/AR@940 nm + 1535 nm
Perpendicularity
<10 arcmin
Wavelength
1534 nm (laser wavelength)
Refractive Indices
(@1640 nm) 1.52
Expansion Coefficient
(Thermal expansion coefficient) 8×10-6 /K
Thermal Optical Coefficient
(dn/dT) -2.1×10-6 /K
Thermal Conductivity
0.85 W/m/K
Damage Threshold
(Laser-induced) >10 J/cm2@1535 nm, 10 ns
Absorption Cross Section
(at peak) 1.7×10-20 cm2
Bandwidth
(absorption bandwidth at a peak wavelength) 20nm
Emission Cross Section
(@1534nm) 8×10-21 cm2
Absorption Wavelength
970 nm
Long lifetime of the 4I13/2 erbium level; high Yb to Er energy transfer efficiency; high absorption and emission cross sections; wide absorption and emission bandwidths
Passive Q-Switched Lasers for Laser Rangefinders, LIDAR and LIBS Systems
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