Patent ID: 9696605
Date: 2017-07-04
CPC Classifications: G02B,G02F

Claim:
1. A method for fabricating a waveguide suitable for non-mechanical steering of an input laser beam having a laser wavelength, the waveguide comprising crystalline dielectric material on top of metal layers, the method comprising: creating an implantation line in a donor wafer of dielectric material by implanting ions into the donor wafer to a predetermined distance beneath a top surface of the donor wafer, the predetermined distance being controlled and defined by a speed of implantation the ions, a separation layer of dielectric material being thereby defined between the top surface of the donor wafer and the implantation line, said separation layer having a thickness equal to the predetermined distance, said thickness being less than one half of the laser wavelength; applying a first metallization layer onto the top surface of the donor wafer; separating the separation layer of dielectric material from the donor wafer by slicing the donor wafer at the implantation line; and applying a second metallization layer onto the separation layer, so that the separation layer is sandwiched between the first and second metallization layers.