In this afternoon, Mott and I tried to find a beat note between two NPROs which are going to be set onto each end table for green locking.
At first time we could not find any beats. However Koji found that the current of innolight NPRO was set to half of the nominal.
Then we increased the current to the nominal of 2A, finally we succeeded in finding a beat note.
Now we are trying to lock the PLL.
P.S. we also succeeded in acquiring the lock
nominal setup
|
innolight |
lightwave |
T [deg] |
39.75 |
37.27 |
current [A] |
2 |
2 |
laser power [mW] |
950 |
700 |
|