T. Bosch, S. Pavageau, D. D’Alessandro, N. Servagent, V. Annovazzi-Lodi, S. Donati
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引用次数: 8
摘要
研制了一种采用光反馈干涉和波长扫描的新型激光测距仪。我们的目标是设计一种用于短距离操作的高精度传感器，使用低成本的Mach-Zender干涉仪单独测量激光的啁啾。实验上，在一个普通的扩散目标上，在10厘米的距离上，我们能够证明100 /spl μ m /m的精度。预测精度降至20-50 /spl mu/m。
A low-cost, optical feedback laser range-finder with chirp-control
A new laser range finder using optical feedback interferometry and wavelength sweep has been developed. Our aim was to design a high-accuracy sensor for operation on short distances, using a low-cost Mach-Zender interferometer to separately measure the chirp of the laser. Experimentally, on a plain diffusing target, at a 10-cm distance, we were able to demonstrate an accuracy of 100 /spl mu/m. Projected accuracy is down to 20-50 /spl mu/m.
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