Er,Yb:Phosphate Glass, Yb 20%/Er 1%, uncoated

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

ACMA00027519

Product Name

Er,Yb:Phosphate Glass, Yb 20%/Er 1%, uncoated

Doping

Yb 20% Er 1%

Wedge Of Ends

Brewster cut

Width

3 mm

Height

3 mm

Length

5 mm

DimensionTolerance

W±0.1mm/H±0.1mm/L±0.2mm

Coating

uncoated

Flatness

<λ/10@632.8 nm

Parallelism

< 10 arcsec

Perpendicularity

<10 arcmin

Surface Quality

10-5 S-D

ClearAperture

>90%

Density

2.93 g/cm³

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

Chamfers

<0.1 mm at 45˚

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

Moh'sHardness

6~7

MSDS

COA

Spec Sheet

Features And Benefits

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

Application

Passive Q-Switched Lasers for Laser Rangefinders, LIDAR and LIBS Systems

• Catalog Number: ACMA00027519
• Product Name: Er,Yb:Phosphate Glass, Yb 20%/Er 1%, uncoated
• Doping: Yb 20% Er 1%
• Wedge Of Ends: Brewster cut
• Width: 3 mm
• Height: 3 mm
• Length: 5 mm
• DimensionTolerance: W±0.1mm/H±0.1mm/L±0.2mm
• Coating: uncoated
• Flatness: <λ/10@632.8 nm
• Parallelism: < 10 arcsec
• Perpendicularity: <10 arcmin
• Surface Quality: 10-5 S-D
• ClearAperture: >90%
• Density: 2.93 g/cm³
• 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
• Chamfers: <0.1 mm at 45˚
• 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
• Moh'sHardness: 6~7