Nd or Yb-doped potassium gadolinium tungstate (Nd: or Yb:KGd(WO4)2) crystal
Nd:KGd(WO4)2
Fujian Castech Crystals
Neodymium doped Potassium-Gadolinium Tungstate crystal (Nd:KGd(WO4)2 or Nd:KGW) is an excellent laser gain material which has low laser oscillations threshold and higher emission section. The fluorescent concentration quench effect of the Nd3+ ion in the KGW crystal may be weakened due to the W-O covalent bond, so this crystal has a higher doping concentration of active ion. Furthermore, the absorption band at 808nm of Nd3+ in the KGW which has 12nm FWHM is well matched with the emission wavelength of current commercial laser diode.
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