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![optical bench setup used for KM alignment. The laser beam (right) hit... | Download Scientific Diagram optical bench setup used for KM alignment. The laser beam (right) hit... | Download Scientific Diagram](https://www.researchgate.net/publication/258718972/figure/fig4/AS:327598698713094@1455117024194/optical-bench-setup-used-for-KM-alignment-The-laser-beam-right-hit-the-folding-mirror.png)