HELPING THE OTHERS REALIZE THE ADVANTAGES OF BIREFRINGENT CRYSTAL

各向异性透明晶体如方解石、石英等的折射率，是其固有的特性，称为永久双折射。For optical fibers and other waveguides, it is more proper to look at the main difference of successful refractive indices. This is often straight relevant to the real difference in imaginary values of the propagation constants.For an arbi