Koheras HARMONIK
Fiber Coupler Installation Guide
4
Step 5: Adjust the coarse tilt
a
Loosen the three tilt locking screws.
b
Turn the tilt adjustment screws in sequence over a wide range in
both directions while observing the power meter.
c
If there is no measurable light coupled into the fiber while turning
the adjustment screws, perform steps “d” to “f”, otherwise go to
step “g”.
d
Loosen the two grub screws holding the collimator lens.
e
Insert the eccentric key and rotate it until the collimator lens is
closest to the fiber end. This orientation is where the white
indicator on the eccentric key points towards the fiber end as the
white arrow shows. From this position, rotating in either direction
moves the lens away from the fiber end.
f
As was done in step “b”, turn the tilt adjustment screws in
sequence until the signal is found on the power meter.
g
Optimize the tilt adjustment for maximum power coupled into the
fiber.
a
b
d
e
“grub screws”
“tilt adjustment screws”
“tilt locking screws”
“tilt locking screws”
