HELPING THE OTHERS REALIZE THE ADVANTAGES OF BIREFRINGENT CRYSTAL

For optical fibers and various waveguides, the excellence among uniaxial and biaxial doesn't apply, Because the propagation direction is basically determined by the waveguide.All nonlinear crystals for nonlinear frequency conversion are birefringent. This is due to they can have their nonlinearity only by remaining non-isotropic, and that also caus