Laser beam splitting device and regulation and control method thereof

• Main Authors: ZHANG HENGYI, ZHU GUANGZHI, CHU YIHANG, HE TIANYI, SUN SHENGKAI, WANG HAORAN
• Format: Patent
• Language: Chinese; English
• Published: 02.08.2024
• 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 ELEMENTS, SYSTEMS, OR APPARATUS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention belongs to the related technical field of laser, and discloses a laser beam splitting device and a regulation and control method thereof, and the device comprises an acousto-optic pre-beam splitting unit, a collimation and beam expansion unit and a polarization beam splitting unit. The acousto-optic pre-beam-splitting unit comprises two acousto-optic devices with a Bragg diffraction effect, and an incident laser beam passes through the two acousto-optic devices to obtain a first laser beam array; the collimation beam expanding unit generates collimation pre-beam-splitting arrays which are collimated and do not coincide with each other; the polarization beam splitting unit comprises a reflection beam splitting array composed of a plurality of polarization beam splitting subunits, the polarization beam splitting subunits are used for transmitting and reflecting incident light of the polarization beam splitting subunits, the reflection direction of the incident light is the same, and in the row and