Universal wind measurement laser radar receiving and transmitting combined telescope device

Abstract

The invention discloses a universal wind measurement laser radar receiving and transmitting combined telescope device which comprises a telescope device body, the telescope device body is connected with a circulator, the telescope device body comprises a collimation coupling mirror, a beam expanding mirror and a compensating mirror, the collimation coupling mirror and the beam expanding mirror are arranged in a threaded connection mode, and the beam expanding mirror is arranged in a Galileo mode and is composed of a concave lens and a convex lens. By arranging the detachable collimation coupling mirror, the telescope device can be suitable for wind measurement laser radars of two schemes of an optical fiber circulator and a spatial optical circulator at the same time, the problems that existing wind measurement laser radars need to be designed separately and do not have formed products are solved, and universal design is achieved; meanwhile, the optical aberration of a telescope system is reduced through the compensating mirror, and a good imaging effect is achieved.

Description

technical field [0001] The invention relates to the technical field of wind-measuring lidar, in particular to a general-purpose wind-measuring lidar transceiver combined telescope device. Background technique [0002] Compared with traditional radar, laser wind radar has higher resolution, higher sensitivity, wider detection range and stronger anti-interference ability. It has been widely used in aerospace, meteorological observation, wind power generation and other fields. [0003] The telescope is an important part of the wind lidar. The two common circulator schemes for the wind lidar with combined transceivers are fiber optic circulators and space optical circulators. Since the laser beam emitted by the fiber optic circulator is divergent, the space The laser beams emitted by the optical circulator are parallel, so the structures of the transceiver telescopes corresponding to the two schemes are different. However, whether it is a fiber optic circulator or a spatial op...

AI Technical Summary

Problems solved by technology

Although the optical fiber circulator has a simple structure and small size, it is conducive to integration, but its phase intensity noise is large, and it has high requirements on the line width of the laser light source, which increases the cost of the light source; while the spatial optical circulator can effectively control the intensity of stray light. It reduces the line width requirements of the light source, but it is bulky and complicated to install and adjust. At the same time, it is necessary to consider the coupling efficiency between the optical fiber and the circulator.

[0005] However, the transceiver telescopes used on the market have poor versatility and cannot be applied to two circulator schemes at the same time. The actual use may require special design, which is not conducive to product production and reduces the flexibility of the system.

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