2-20
The procedures for inserting a fiber into the coupler and coarse adjustment are generally
performed only once, by the service engineer when the instrument is installed. However,
these instructions are included so the user can adjust the coupling to achieve maximum
power transfer into the fiber, or in the event that a new fiber is used. The fine adjustment
of the coupling is performed more often.
To better understand the fiber coupler, you can remove the cover, as instructed in the section
below, and follow along with the descriptions of the various components.
WARNING
Make sure the laser is turned off when the cover to the laser coupler is
removed, or wear the appropriate laser safety goggles. NEVER look directly into the fiber
tip or laser aperture! Severe eye damage or blindness could result.
I
NSERTING
A
F
IBER
IN
THE
C
OUPLER
Step 1
Remove the cover from the coupler. You will see that the fiber is held by a brass
coupler chuck. The chuck is held in position by a chuck clamp. The clamp can
be translated in the X, Y, and Z to position the fiber in the laser beam.
Step 2
When it is time to use a new fiber, remove the coupler chuck from its clamp by
unscrewing the lock collar on the end of the coupler and removing the old fiber.
Step 3
Feed the new fiber through the chuck far enough so you can strip and cleave the
end of the fiber.
Step 4
Carefully strip about 10mm of the polymer buffer off the fiber.
Step 5
Cleave the fiber at about 3-5mm, and pull the new cable back into the chuck, with
about 5mm of fiber extending from the lock collar. (More detailed instructions on
how to cleave the fiber are given on page 2-22.)
Step 6
Replace the chuck in the chuck clamp, with the cleaved end of the fiber facing the
laser objective lens. The distance between the cleaved end of the fiber and the
objective lens should be approximately 3mm.
Step 7
Tighten the chuck clamp to hold the chuck securely.
Step 8
Replace the cover.
Step 9
Temporarily secure the other end of the fiber in a way that will not pose a risk of
laser light exposure to anyone’s eyes. Tape it to the Aurora-2 base plate or gently
seat it into the fiber holder on the end of the cam splicer assembly.
Summary of Contents for Aurora-2
Page 30: ...2 18 Figure 2 20 Reflection Tower Controls Swivel Tilt Focus Rotating mirror selector ...
Page 44: ...3 8 ...
Page 52: ...5 4 ...
Page 54: ......
