ELECTRO-OPTICAL SILICON-BASED PHASE MODULATOR WITH NULL RESIDUAL AMPLITUDE MODULATION

• Main Authors: MARGALLO BALBÁS, Eduardo, LLORET SOLER, Juan, ZINOVIEV, Kirill, RUBIO GUIVERNAU, José Luis
• Format: Patent
• Language: English; French; German
• Published: 16.10.2019
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; DIAGNOSIS; FREQUENCY-CHANGING; HUMAN NECESSITIES; HYGIENE; IDENTIFICATION; MEASURING; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS; MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS; MEDICAL OR VETERINARY SCIENCE; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; SURGERY; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; TESTING

Systems and methods are presented for modulating a beam of radiation, such that the modulated beam exhibits substantially null residual amplitude modulation (RAM). An electro-optical modulator is presented that includes a waveguide, a first region associated with the waveguide and a second region associated with the waveguide. The waveguide is designed to guide a beam of radiation. A first electric potential applied to the first region causes a first modulation to the beam of radiation while a second electric potential applied to the second region causes a second modulation to the beam of radiation. The first modulation combined with the second modulation provides substantially null residual amplitude modulation of the beam of radiation.