Er:YAG Crystals, 0.15%Doping

Er3+:YAG crystal is an attractive lasing material for eye-safe emission at 1617 and 1645 nm wavelengths, which can be diode-resonantly pumped into the upper laser manifold at 1470 nm and 1532 nm. By using a heavily erbium-doped (~50 at.%) YAG crystal, high-efficiency CW laser operation of ~3 µm can be obtained. We offer Er3+:YAG crystals in various sizes.

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Catalog Number

ACMA00027512

Product Name

Er:YAG Crystals, 0.15%Doping

Doping

0.0015

Wedge Of Ends

Brewster cut

Width

5 mm

Height

5 mm

Length

3 mm

Orientation

[111]

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%

Crystal Structure

Cubic

Density

4.56 g/cm³

Wavelength

1617, 1645, 2940 nm (laser wavelength)

Refractive Indices

(@1640 nm) 1.82

Expansion Coefficient

(Thermal expansion coefficient) 7×10^-6 /K

Thermal Optical Coefficient

(dn/dT) @1064 nm 7.8 × 10^-6 /K

Thermal Conductivity

~13 W/m/K

Chamfers

<0.1 mm at 45˚

Absorption Cross Section

(at peak) ～1.0×10^-20 cm²

Bandwidth

(absorption bandwidth at a peak wavelength) ~2-3 nm @ 1470 nm

Emission Cross Section

(at a wavelength) 2.6 × 10^-20@2940 cm²; 5.2 × 10^-21@1645 cm²

Absorption Wavelength

960, 1470, 1532 nm

Moh'sHardness

8.5

MSDS

COA

Spec Sheet

Features And Benefits

Isotropic crystal; high thermal conductivity; emission spectrum at 1617 nm has no absorption in the atmosphere; corresponds to a strong absorption bandwidth around 1470 nm emitted by InGaAsP/InP laser diodes

Application

1. CW and Q-switched eye-safety-band pump lasers with nearly quantum defect-limited efficiencies 2. Channel waveguide eye-safe in-band pump laser with diffraction limited output 3. CW and Q-switched ~3 µm lasers

• Catalog Number: ACMA00027512
• Product Name: Er:YAG Crystals, 0.15%Doping
• Doping: 0.0015
• Wedge Of Ends: Brewster cut
• Width: 5 mm
• Height: 5 mm
• Length: 3 mm
• Orientation: [111]
• 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%
• Crystal Structure: Cubic
• Density: 4.56 g/cm³
• Wavelength: 1617, 1645, 2940 nm (laser wavelength)
• Refractive Indices: (@1640 nm) 1.82
• Expansion Coefficient: (Thermal expansion coefficient) 7×10^-6 /K
• Thermal Optical Coefficient: (dn/dT) @1064 nm 7.8 × 10^-6 /K
• Thermal Conductivity: ~13 W/m/K
• Chamfers: <0.1 mm at 45˚
• Absorption Cross Section: (at peak) ～1.0×10^-20 cm²
• Bandwidth: (absorption bandwidth at a peak wavelength) ~2-3 nm @ 1470 nm
• Emission Cross Section: (at a wavelength) 2.6 × 10^-20@2940 cm²; 5.2 × 10^-21@1645 cm²
• Absorption Wavelength: 960, 1470, 1532 nm
• Moh'sHardness: 8.5