Michael and Yuhang
Some cables need to be connected to the new OPO, such as PZT cables, thermometer cables, and Peltier cables. The old connection was not firm enough and we decide to use a new way to connect cables. This new way is suggested by Tomaru-san and it uses a copper tube as interface. After putting the two sides of cables inside the copper tube (Fig.1,2), we use a plier to clamp two cables so that the cables are fixed (Fig.3,4). Then we use Kapton tape to isolate the copper tube from environment (Fig.5).
After fixing, we found the connection is firm enough. We also tried to drive PZT and found the driving is successful.