Ultraviolet three-frequency high spectrum resolution laser radar system based on F-P etalon and detection method thereof
An etalon and hyperspectral technology, applied in lidar system and its detection field, can solve the problems of large inversion error, uncoverable detection range, and low detection accuracy.
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[0038] Structural frame of the present invention is as shown in figure 1. figure 1 The middle seed injection light source (1) is connected to the seed light drive power supply (49) and the trigger circuit (51) respectively, and the seed light emitted by the seed injection light source (1) passes through the first convex lens (2), optical isolator (3), After the acousto-optic frequency shifter (4), the second convex lens (5), and the third convex lens (6), a pulsed Nd:YAG laser (7) is injected to emit 355nm linearly polarized pulsed light. The acousto-optic frequency shifter (4) is connected with the acousto-optic frequency shifter drive (53), and the optical frequency from the acousto-optic frequency shifter (4) is controlled by the drive signal at v 0 , v - =v 0 -2GHz and v + =v 0 Alternate between +2GHz. The pulsed Nd:YAG laser (7) is connected to the laser drive power supply (55), and the light pulse emitted from the pulsed Nd:YAG laser (7) is divided into two beams by...
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