Er,Yb:YAB Crystals, 12% Yb/1.7% Er, AR Coating, 3 mm Length

Er3+, Yb3+ co-doped yttrium aluminum borate crystals are an alternative to the commonly used Er,Yb:phosphate glass as an "eye-safe" active medium for lasers with high average output power in CW and pulsed modes. It is characterized by thermal conductivities of 7.7 Wm^-1K^-1 and 6 Wm^-1K along the a and c axes, respectively ^-1.

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Catalog Number

ACMA00027522

Product Name

Er,Yb:YAB Crystals, 12% Yb/1.7% Er, AR Coating, 3 mm Length

Doping

12% Yb, 1.5% Er

Wedge Of Ends

Right-angle cut

Width

3 mm

Height

3 mm

Length

3 mm

Orientation

a-cut

DimensionTolerance

W±0.1mm/H±0.1mm/L±0.2mm

Coating

AR/AR@976nm+1480-1600 nm

Flatness

<λ/10@632.8 nm

Parallelism

< 10 arcsec

Perpendicularity

<10 arcmin

Surface Quality

10-5 S-D

ClearAperture

>90%

Crystal Structure

trigonal

Density

3.84 g/cm³

Wavelength

1522, 1531, 1543, 1550, 1602 nm (laser wavelength)

Refractive Indices

(@632.8 nm) n0=1.7757, ne=1.7015

Expansion Coefficient

(Thermal expansion coefficient) 2×10^-6 (//a), 9.5×10^-6 (//c) /K

Thermal Optical Coefficient

(dn/dT) 1.4×10^-6 (//a) /K, 4.8×10^-6 (//c) /K

Thermal Conductivity

7.7 (//a), 6 (//c) W/m/K

Damage Threshold

(Laser-induced) >10 J/cm²@1550 nm, 10 ns

Chamfers

<0.15 mm at 45˚

Absorption Cross Section

(at peak) 2.7×10^-20 cm²

Bandwidth

(absorption bandwidth at a peak wavelength) 17nm

Emission Cross Section

(@1531nm) 2.5×10^-20 cm²

Absorption Wavelength

976 nm

Moh'sHardness

7.5

MSDS

COA

Spec Sheet

Features And Benefits

Uniaxial crystal with triangular structure; high thermal conductivity; wide absorption bandwidth around 976 nm; high absorption and emission cross sections; extremely high Yb3+ to Er3+ energy transfer efficiency

Application

High power eye-safe CW lasers; high repetition rate passively Q-switched lasers; ultrashort mode-locked lasers

• Catalog Number: ACMA00027522
• Product Name: Er,Yb:YAB Crystals, 12% Yb/1.7% Er, AR Coating, 3 mm Length
• Doping: 12% Yb, 1.5% Er
• Wedge Of Ends: Right-angle cut
• Width: 3 mm
• Height: 3 mm
• Length: 3 mm
• Orientation: a-cut
• DimensionTolerance: W±0.1mm/H±0.1mm/L±0.2mm
• Coating: AR/AR@976nm+1480-1600 nm
• Flatness: <λ/10@632.8 nm
• Parallelism: < 10 arcsec
• Perpendicularity: <10 arcmin
• Surface Quality: 10-5 S-D
• ClearAperture: >90%
• Crystal Structure: trigonal
• Density: 3.84 g/cm³
• Wavelength: 1522, 1531, 1543, 1550, 1602 nm (laser wavelength)
• Refractive Indices: (@632.8 nm) n0=1.7757, ne=1.7015
• Expansion Coefficient: (Thermal expansion coefficient) 2×10^-6 (//a), 9.5×10^-6 (//c) /K
• Thermal Optical Coefficient: (dn/dT) 1.4×10^-6 (//a) /K, 4.8×10^-6 (//c) /K
• Thermal Conductivity: 7.7 (//a), 6 (//c) W/m/K
• Damage Threshold: (Laser-induced) >10 J/cm²@1550 nm, 10 ns
• Chamfers: <0.15 mm at 45˚
• Absorption Cross Section: (at peak) 2.7×10^-20 cm²
• Bandwidth: (absorption bandwidth at a peak wavelength) 17nm
• Emission Cross Section: (@1531nm) 2.5×10^-20 cm²
• Absorption Wavelength: 976 nm
• Moh'sHardness: 7.5