[Aritomi, Yuhang, Marco, Matteo]

 

We checked mode hopping region of Main laser, Auxiliary laser 1 and Auxiliary laser 2.

 

Main laser (Current = 1.834 A, unit is degree Celsius)

22.2 - 22.3

25.2 - 25.6

28.6 - 29

31.9 - 32.3

35.2 - 35.6

38.3 - 38.7

41.2 - 41.6

 

Auxiliary laser 1 (Current = 1.183 A)

33.7 - 34.6

36.9 - 37.7

39.8 - 40.9

42.7 - 43.9 

 

Auxiliary laser 2 (current = 1.338 A)

33.2 - 34.6

36.4 - 37.7

39.5 - 40.8

 

We'll check the rest of mode hopping region of CC laser and p pol laser tomorrow.

We have to find the optimal temperature region which doesn't have mode hopping for three lasers and has beat note with 7 MHz for ML-CC PLL and below 400 MHz for ML-p pol PLL and overlapping of s pol and p pol inside OPO.