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首页> 外文期刊>Optik: Zeitschrift fur Licht- und Elektronenoptik: = Journal for Light-and Electronoptic >Real-time adjustment of optical transmitter by laser beam parameter measurement based on two linear array CCD scanning imaging
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Real-time adjustment of optical transmitter by laser beam parameter measurement based on two linear array CCD scanning imaging

机译：基于两个线性阵列CCD扫描成像的激光束参数测量实时调整光发射器

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摘要

In this paper, we present a real-time measurement and adjustment method, based on scanning imaging, for optical transmitter which emits 90° × 2° linear laser beam. This novel optical arrangement consists of an area array CCD and two linear array CCDs. According to the relationship between the positions, angles of transmitter optical components and the beam parameters of emergent laser, the system can help us to decide the real-time adjustment of optical transmitter by measuring the related beam parameters. In order to improve the measurement speed, avoid occlusion and ensure simultaneous measurement, the two linear array CCDs are placed at near field, far field and separated by a definite angle to acquire the beam intensity distribution through suitable nonlinear correction during the process of scanning. After a complete scanning, the beam parameters and the spot image are acquired by continuous measurement. The proof-of-principle experiments showed that the measurement results were in agreement with the analysis. The presented method was applied to direct fast adjustment for higher quality on the assembly of the optical transmitter. The presented procedure is highly advantageous for diverse laser beam emitted from the optical transmitter, such as elliptic, linear and so on.
机译：在本文中，我们提出了一种基于扫描成像的实时测量和调整方法，该方法可发射90°×2°线性激光束。这种新颖的光学装置包括一个面阵CCD和两个线阵CCD。根据发射器光学组件的位置，角度和出射激光的光束参数之间的关系，该系统可以通过测量相关的光束参数来帮助我们决定光学发射器的实时调整。为了提高测量速度，避免遮挡并确保同时进行测量，将两个线性阵列CCD放置在近场，远场并隔开一定角度，以在扫描过程中通过适当的非线性校正获得光束强度分布。完全扫描后，通过连续测量获取光束参数和点图像。原理验证实验表明，测量结果与分析结果吻合。提出的方法被应用于直接快速调节，以在光发射器的组件上获得更高的质量。对于从光学发射器发出的各种激光束（例如椭圆形，线性等），本过程非常有利。

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