Nd:KGW Crystals, Ø3mm, 60 mm Length

Nd:KGW crystals are a good choice for generating picosecond laser pulses. Compared to Nd:YAG crystals, these crystals are characterized by a lower stimulated emission cross-section, thus providing better performance in Q-switched operation. Alfa Chemistry offers Nd:KGW crystals in various sizes.

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Catalog Number

ACMA00027436

Product Name

Nd:KGW Crystals, Ø3mm, 60 mm Length

Molecular Formula

KGd(WO4):Nd

Melting Point

1075 ℃

Diameter

Ø 3 mm

Doping

0.05

Wedge Of Ends

Right-angle cut

Length

60 mm

Orientation

b(Np)-cut

DimensionTolerance

ø±0.1mm/L±0.1mm

Coating

AR/AR@1067 nm

Flatness

<λ/10@632.8 nm

Parallelism

< 10 arcsec

Perpendicularity

<10 arcmin

Surface Quality

10-5 S-D

ClearAperture

>90%

Crystal Structure

Monoclinic

Lattice Parameters

a = 8.095 Å, b = 10 Å, c = 7.588 Å

Density

7.25 g/cm³

Wavelength

1067 nm (laser wavelength)

Refractive Indices

(@1067nm) ng=2.033, np=1.937, nm=1.986

Expansion Coefficient

(Thermal expansion coefficient)αp=1.60×10^-6 K^-1, αm=4×10^-6 K^-1, αg=8.5×10^-6 K^-1

Thermal Conductivity

~3 Wm^-1 K^-1

Damage Threshold

(Laser-induced) >10 J/cm²@1067 nm, 10 ns

Fluorescence Lifetime

110 µs (3 % doping), 90 µs ( 8 % doping)

Youngs Modulus

E[100] = 115.8GPa; E[010]= 152.5GPa; E[001] = 92.4GPa

Chamfers

<0.1 mm at 45˚

Absorption Cross Section

(at peak) 28×10^-20 cm²

Bandwidth

(absorption bandwidth at a peak wavelength) 11 nm

Emission Cross Section

(@1067) 21×10^-19 cm²

Absorption Wavelength

811 nm

Moh'sHardness

4~5

MSDS

COA

Spec Sheet

Features And Benefits

1. Suitable for generating picosecond light pulses, ideal for diode-pumped lasers 2. High storage density and low laser threshold 3. High Efficiency Raman Converter

Application

Diode-pumped Q-switched lasers emitting in the "eye-safe" spectral range of laser rangefinders; Raman converters

• Catalog Number: ACMA00027436
• Product Name: Nd:KGW Crystals, Ø3mm, 60 mm Length
• Molecular Formula: KGd(WO4):Nd
• Melting Point: 1075 ℃
• Diameter: Ø 3 mm
• Doping: 0.05
• Wedge Of Ends: Right-angle cut
• Length: 60 mm
• Orientation: b(Np)-cut
• DimensionTolerance: ø±0.1mm/L±0.1mm
• Coating: AR/AR@1067 nm
• Flatness: <λ/10@632.8 nm
• Parallelism: < 10 arcsec
• Perpendicularity: <10 arcmin
• Surface Quality: 10-5 S-D
• ClearAperture: >90%
• Crystal Structure: Monoclinic
• Lattice Parameters: a = 8.095 Å, b = 10 Å, c = 7.588 Å
• Density: 7.25 g/cm³
• Wavelength: 1067 nm (laser wavelength)
• Refractive Indices: (@1067nm) ng=2.033, np=1.937, nm=1.986
• Expansion Coefficient: (Thermal expansion coefficient)αp=1.60×10^-6 K^-1, αm=4×10^-6 K^-1, αg=8.5×10^-6 K^-1
• Thermal Conductivity: ~3 Wm^-1 K^-1
• Damage Threshold: (Laser-induced) >10 J/cm²@1067 nm, 10 ns
• Fluorescence Lifetime: 110 µs (3 % doping), 90 µs ( 8 % doping)
• Youngs Modulus: E[100] = 115.8GPa; E[010]= 152.5GPa; E[001] = 92.4GPa
• Chamfers: <0.1 mm at 45˚
• Absorption Cross Section: (at peak) 28×10^-20 cm²
• Bandwidth: (absorption bandwidth at a peak wavelength) 11 nm
• Emission Cross Section: (@1067) 21×10^-19 cm²
• Absorption Wavelength: 811 nm
• Moh'sHardness: 4~5