According to the simulation I did, I installed the lens and align the infrared mode cleaner today. After the alignment, I did the scanning of mode cleaner and monitor the mode cleaner transmission by PD. Since I have this scanning on the oscillscope, I used the data to do the fit. The result is Finesse =  192(according to entry 566, expect value should be 300-500). I will do some power budget statics after the lock of it.