R&D (FilterCavity)
YuhangZhao - 00:54, Saturday 23 November 2019 (1875)
QPD response to different size and power of 532nm light

Federico, Yaochin, and Yuhang

1. Test of small size beam with different power (attached figure 1 and 2)

power varies from 5mW to 12mW.

2. Test of 12mW light with a different beam size (attached figure 3 and 4)

3. The test of the large beam with different power (attached figure 5 and 6)

varies from 0.5mW to 12mW.

Note: According to the AA telescope design, the beam size is ~260um. The available power we can send to QPD is 2mW, the power distributed to rach quarter is 0.5mW.

Images attached to this report
1875_20191122165259_small1.png 1875_20191122165310_small2.png 1875_20191122165338_size1.png 1875_20191122165347_size3.png 1875_20191122165356_large1.png 1875_20191122165403_large2.png