Recently

the neodymium-doped crystal Nd

3+

KGd(WO

4

)

2

(or Nd:KWG) lasing at 1067nm was demonstrated that it exhibits highly efficient free-running operation.The laser crystal also possesses other attractive features

such as a strong and broad absorption band that makes this laser medium be an ex-cellent candidate for efficient diode pumping without temperature controlling.The absorption band at 0.8μm of Nd

3+

in the crystal is well matched with the emission wavelength of diode

a solid state laser pump which is very convenient and popular in laser science and technology today.Nd:KWG crystal was grown by the TSSG slow cooling method from a suitable flux K

2

W

2

O

7

.TG-DTA tests show Nd:KWG(5at%) crystal has a phase transition at 984℃

which is below the melting point 1044℃.The lower value compared with pure KGW can be explained by the doping of Nd

3+

XFA shows the existence of element of W

K

Gd

O

Nd.And the intensities agree with the proportion of raw materials.In IR and Raman spectra

it can be observed that the Ln-O vibration transitions are at 400.4cm

-1

408cm

-1

atom group WO4 flex vibration at 344.8~429cm

-1

and atom group WO

4

bend vibration at 750~ 899.5cm

-1

.The absorption spectrum of Nd:KWG crystal was measured.It should be noted that there is a strong absorption band at 808nm

the emission wavelength of the laser diode.And

we also calculated the absorption cross sections.