All-solid-state chip large-angle optical beam forming system

• Main Authors: LI WANGZHE, LIU CHENYU, MA WEICHAO
• Format: Patent
• Language: Chinese; English
• Published: 04.12.2020
• 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; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

An all-solid-state chip optical beam forming system comprises a tunable light source, a semiconductor optical amplifier, an optical phased array, a far-field detection module, an offline calibration module and an electric control module, wherein the semiconductor optical amplifier amplifies the laser power from the tunable light source by injecting a proper driving current, and transmits the laserpower to the optical phased array through the on-chip waveguide; or the semiconductor optical amplifier and the tunable light source are integrated together and transmitted to the optical phased array through the coupling optical fiber; according to the optical phased array, single longitudinal mode laser enters from a cleavage surface and is equally divided into m paths of waveguides by a properamount of optical beam splitters, and the laser in each waveguide is equal in power; after passing through the thermal regulation electrodes loaded on the waveguides, the waveguides are arranged at certain intervals and radia