Repeat for the Other Pair of Screws n Alternate between each pair until there is no more improvement in power from the fibre. n More than 60% of the input power must be transmitted.
Rotate the Fibre slightly and Repeat the Walking n It is necessary to co-align the polarisation of the laser and the fibre. n This is achieved by slightly rotating the fibre and repeating the walking until the maximum possible power issues from the fibre. n Warning. This process is tedious.
Conclusion n Tighten the locking screw. n Replace the shutter and covers. n The procedure is complete.