To reduce the effect of locking accuracy, I reduced the pump green power. First I reduced green power from 26.7mW to 20mW by changing MZ offset, but I couldn't lock GRMC and MZ.

Then I put OD0.2 after GRMC and green power reduced from 26.7mW to 18 mW.

OPO temperature and p pol PLL frequency are 7.173kOhm and 220MHz with 18mW green power.