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  • Look at beam on B0 and B1 and use M4 and M5 in Laser room 2 tab to align to same reference coordinates as before.
    Note that one might have to iterate a few times.
    Henrik mentioned it might be faster to start with B1 as M5 is being bumped more regularly, especially after using the rail setup in the laser room (divergence measurements or axicon characterisations).


  • Might have to change polarization to see a good signal on B1 (wave plate). 
    Wave plate can be found on the same motor controller as the HeNe block (Ch2).
    Move by 15 units either way from 50.

  • After alignment, reset wave plate and set iris back to nominal beam size.

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