This entry is log on Mar. 2nd.

What I did

I aligned the output mirror of the folded cavity so that the reflected beam can be picked off at the FI.
The procedure is as follows.

1. Install the output mirror.
2. Check the reflected beam postion by a sensor card.
3. Insert the shim sheet between the mirror holders to adjust the direction of mirror.

Next Step

Align the input mirror as the same procedure.
Then scan the laser frequency and monitor the transmitted beam.