LUMENIS VersaPulse PowerSuite - Fiber Endface

7528%/(6+227,1* 9HUVD3XOVHPowerSuite6HULHV6HUYLFH0DQXDO
 5(9%
If the blastshield glass was known to be new or clean at the time, the optical alignment checks
out to be normal, the fiber was new and was being properly used, yet the system continues to
consume blastshields at a high rate, check for contamination on the fiber focus lens.
To check the fiber focus lens, remove the fiber focus assembly from the laser, then remove the
lens cell by first removing the beam combiner. If the lens is contaminated, clean or replace as
necessary. Make a final alignment check by inspecting the test fiber burn.
FIBER ENDFACE
1. The fiber endface explodes:
• The fiber may have been previously used or autoclaved (high temperature sterilized)
and/or its lifetime or wear rating has been exceeded. This is probably most common
with VersaLinks and SlimLine Bare Fibers that are used more than once.
• The fiber (SMA end) may be damaged or contaminated which is most commonly asso-
ciated with improper handling of the fiber or firing through a blown blastshield.
• Contamination on blastshield may be scattering or unfocusing laser energy at the fiber
endface. Typically, the causes are a fingerprint on the blastshield glass, the glass has
been previously cleaned or not thoroughly cleaned, or the glass has suffered an earlier
blast.
• The laser optical alignment (on one or more channels) is not centered and/or peaked as
measured with, respectively, the 10mm Test Aperture and the Transimpedance Detec-
tor.
• Contamination of fiber focus lens may be scattering or unfocusing laser energy at the
fiber endface. This is usually caused by multiple explosions where a small percentage
of the debris may be making its way to the fiber focus lens.
It is necessary to perform the Operational and Safety Checks found at the end of Section 3 after the servicing
and repair of the laser.