Today, I noticed that we have reached the maximum power value of the green power stabilization. The green transmitted power is currently not stabilized and only 90% of what it should be. Since the reflected green OPO power is increasing as well, I suspect that we are seeing a crystal degradation rather than a fiber degradation.
Maximized the available green power after the SHG. We now lock with 17.5mW into the fiber and have about 15% headroom.