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The kept transmission for M4 is 2.17 ppm. Which is the value measured after alignement (center of the mirror).
These measurements have been taken before alignement.
| I (A) |
Input power (mW) |
Transmitted power after window (mW) |
Transmission (ppm) |
| 0 |
74.3 |
195.2e-6 |
2.63 |
| 0 |
73.5 |
212.8e-6 |
2.89 |
| 0 |
52.4 |
151e-6 |
2.88 |
| 6 |
28 400 |
72e-3 |
2.54 |
High dependence against the position. Few measurement several mm away from the center each one at different position give 2.86, 2.68, 2.93, 3.01, 3.06, 3.35 ppm.
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