Adjustable laser attenuator

• Main Authors: WU YUTANG, LI QUANMIN, CHEN LI, ZHU MIN
• Format: Patent
• Language: Chinese; English
• Published: 17.01.2023
• Subjects: OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHYSICS

The invention discloses an adjustable laser attenuator which comprises two right-angle prisms made of the same base material, and the inclined planes of the two right-angle prisms abut against each other. Film layers with different thicknesses are plated at one ends of the inclined planes of the right-angle prisms to control the air interval between the inclined planes of the two right-angle prisms, so that different attenuation ratios of different wave bands are realized. According to the invention, the film layer is plated at one end of the inclined plane where the two rectangular prisms are close to each other, then the two rectangular prisms are glued, and the air gap between the rectangular prisms is controlled through the thickness of the film layer, so that attenuation of different wave bands is realized, and the attenuation ratio can reach 1%-100%. 本发明公开了一种可调激光衰减器，包括两个相同基材的直角棱镜，两个直角棱镜的斜面相互靠合；在直角棱镜斜面上的一端镀制不同厚度的膜层，来控制两个直角棱镜斜面之间的空气间隔，以此实现不同波段的不同衰减比例。本发明通过在两个直角棱镜相互靠合的斜面一端镀制膜层，然后将两个直角棱镜进行胶合，通过膜层的厚度来控制直角棱镜之