Laser light path capable of switching dual-wavelength output

• Main Authors: WANG WENTAO, CUI XINLEI, MA YANJUN, SUN QI
• Format: Patent
• Language: Chinese; English
• Published: 30.01.2024
• Subjects: BASIC ELECTRIC ELEMENTS; 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; DEVICES USING STIMULATED EMISSION; ELECTRICITY; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

The invention relates to a laser light path capable of switching dual-wavelength output, belongs to the technical field of laser, and solves the problems of large size, complex structure and poor reliability in a dual-wavelength switching light path in the prior art. The laser light path comprises a laser light source, an electro-optical crystal, an OPO crystal, a polarizing beam splitter, a light absorber, a beam splitter and a photoelectric detector, the laser light source emits laser, the electro-optical crystal is placed behind the light source and is coaxial with the laser light source, and an electrode capable of applying half-wave voltage is installed in the direction perpendicular to the light passing direction; the OPO crystal is placed behind the electro-optical crystal and is coaxial with the electro-optical crystal, the polarizing beam splitter is placed behind the OPO crystal in a Brewster angle incidence direction, the light absorber is placed in a reflection light path of the polarizing beam sp