Nd:KGW

Nd:KGW

Nd:KGW crystal is very efficient laser material suitable for laser range detection and measuring applications. Compared to Nd:YAG lasers, Nd:KGW lasers has several times higher effieciency. Nd:KGW laser crystal is one of the best choice ensuring effective laser emission generation at low pump energies up to 1 J. These crystals can produce high optical quality with great value of bulkness resistance to laser radiation.

 

Optola offers standard Nd:KGW crystals with doping concentrations 3% – 8%.  

Standard diameters of up to 20 mm with length up to 100 mm.

Non-standard Nd:KGW crystals are available upon request.

Orientation

[010]

Length toleranc,mm

+1.0/-0.0

Diameter tolerance,mm

+- 0.1

Parallelism

<30″

Perpendicularity

<15′

Surface quality

20/10

Coating

AR-coated

Crystal structure

monoclinic

Space group

C2h(2/c)-C 2/c

Cell Parameters

a=8.087Å; b=10.374 Å;c=7.588 Å
ß=94.41˚

Refractive index, at 1067 nm

ng = 2.049; np = 1.978;nm = 2.014

Mohs hardness

5

Density

7.27g/cm3

Melting Point

1075℃

Thermal conductivity @ 373K, 
W x cm-1 x K-1

K[100] = 0.026;K[010] = 0.038;K[001] = 0.034

Young’s modulus,GPa

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

Thermal expansion coefficient, @ 373K

α[100] = 4 x 10-6 K-1; α[010] = 1.6 x 10-6 K-1; α[001] = 8.5 x 10-6 K-1

Lasing Wavelength

911nm,1067nm,1351nm

Absorption band

808nm (FWHM 12nm)

Fluorescent lifetime

110μs (3% doping), 90μs (8% doping)

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