Special-shaped laser gain medium

• Main Authors: WANG TIANQI, ZHANG TIELIANG, ZHANG ZHIQIANG, ZHOU YUMEI, MENG DONGDONG, GAO BAOGUANG, QIAO ZHANDUO
• Format: Patent
• Language: Chinese; English
• Published: 31.05.2022
• Subjects: BASIC ELECTRIC ELEMENTS; DEVICES USING STIMULATED EMISSION; ELECTRICITY

The invention provides a special-shaped laser gain medium, which comprises a first gain crystal and a second gain crystal, wherein the first gain crystal is provided with a first incident plane and a first emergent plane, and pump light enters the first gain crystal through the first incident plane; the pump light is reflected for multiple times in the first gain crystal and then is output to the second gain crystal through the first emergent surface; the first gain crystal is provided with a first incident plane and a first emergent plane, the second gain crystal is provided with a second incident plane and a second emergent plane, the pump light passes through the first emergent plane to be transmitted to the second incident plane, enters the second gain crystal through the second incident plane, and is output through the second emergent plane after being reflected for multiple times in the second gain crystal. Folding transmission of the pump light in the gain medium in the two-dimensional direction is ach