Patent ID: 9310185
Filing Date: 2016-04-12
CPC Classification: A61B,G01B,G02B,G02F

Claim Text:
1. An electro-optical modulator comprising: a waveguide on a substrate, and configured to guide a beam of radiation, wherein the beam of radiation travels in a first direction along a length of the waveguide; a first region on the substrate, the first region having a length parallel to the first direction, wherein a first electric potential applied to the first region causes a first phase modulation to the beam of radiation; and a second region on the substrate, the second region having a length parallel to the first direction, wherein a second electric potential applied to the second region causes a second phase modulation to the beam of radiation different from the first phase modulation, wherein the first electric potential, the length of the first region, the second electric potential, and the length of the second region are determined such that the first phase modulation combined with the second phase modulation provides substantially null residual amplitude modulation of the beam of radiation.