Germanate Glasses

	FROM	TO
Refractive Index nD	1.6068	1.800
Refractive Index nF	1.6171	1.860
Refractive Index nC	1.6026	1.6215
Abbe Number	41.59	35.60
Density (g/cc)	3.64	4.45
(nF)-(nC)x10-5	1459	1300
Stress Optical Coeff.@550nm, nm.cm/kg	7.5	6.1