I checked the IR injection alignment. At the begining of today, the mode matching was 92.1% as follows. The IR injection was 455uW.
| Mode | IR transmission |
| TEM00 | 480 |
| migalignment 1 | 105 |
| migalignment 2 | 100 |
| LG | 105 |
| offset | 94 |
Note that the misalignment 1 means top left and bottom right are bright and the misalignment 2 means top right and bottom left are bright.
Then I aligned the IR injection. The mode matching became 94.4% as follows. The IR injection was 442uW.
| Mode | IR transmission |
| TEM00 | 470 |
| misalignment 1 | 100 |
| misalignment 2 | 100 |
| LG | 105 |
| offset | 94 |