WHAT DOES BIREFRINGENT CRYSTAL MEAN?

For optical fibers and various waveguides, the distinction involving uniaxial and biaxial would not apply, Because the propagation path is essentially determined by the waveguide.The reduced part of the Michel-Levy chart (x-axis) marks the orders of retardation in multiples of approximately 550 nanometers. The realm in between zero and 550 nanomete