NKT Photonics SuperK CONNECT, Product Manual

Page: 26 / 40

Tips for steering the beam path
26
Figure 14 Fine alignment - power measurement
Tips for steering the beam path
This section includes information on beam path adjustment using the CONNECT
and certain conditions that can result in weak or no output power from the FDS.
How to use the
thumbscrews
The thumbscrews rotate the mirrors on two separate axes perpendicular to each
other. It is suggested that when making adjustments to the beam path, that you
always adjust the knobs in pairs. This means for example, referring to
Figure 15 ,
adjust thumbscrews marked I until the best beam is achieved, then repeat for
pair II . Repeat this. over and over, until you cannot further improve the beam
position. One method for obtaining the optimum beam position is described in
Procedure 6 .
The thumbscrews pairs move the beam either left/right or up/down, but this
depends on the CONNECT mounting orientation as described in the following.
CONNECT mounted horizontally
•
Thumbscrew pair I – each mirror pivots such that the beam is steered up and
down (y-axis) perpendicular to its longitudinal axis.
•
Thumbscrew pair II – each mirror pivots such that the beam is steered left
and right (x-axis) perpendicular to its longitudinal axis.
CONNECT mounted vertically
•
Thumbscrew pair I – each mirror pivots such that the beam is steered left and
right (x-axis) perpendicular to its longitudinal axis.
•
Thumbscrew pair II – each mirror pivots such that the beam is steered up and
down (y-axis) perpendicular to its longitudinal axis.
00.23
W
Power meter
FD output
FD input coupler inserted
Beam from Accessory
Lock screw