Cynosure Cynergy, Technical Manual

Page: 42 / 194

40 of 112 850-1265-000, Rev. 4 Cynosure, Inc.
Beam Combiner/Beam Shutter Solenoid Assembly
The beam combiner is designed to combine the YAG laser beam with the PDL laser beam. The
beam combiner is fixed. Both sides of the beam combiner are coated. One side uses an AR
coating maximized for 585-nm transmission ± 2% and the other side is coated for maximum
reflection of 1064 nm, both at 45 degrees. The aim beam is also reflected off this optic, but
because the aim wavelength being similar to the treatment wavelength, a majority of the aim
beam passes through this optic and is wasted. A sufficient amount, however, is reflected and
delivered through the fiber.
The resonator port is part of the fiber block assembly. The beam shutter has a reflective mirror
attached to direct the total power from the laser beam into the resonator port when the shutter is
closed. There is an also an amber
aiming LED used as an aim beam when the shutter is closed.
When the shutter is opened, the laser beam(s) and the red laser aiming diode are sent into the
focusing lens and the fiber.
Focus Lens Mount
The focusing lens is fixed inside the focus lens mount. There is no adjustment for the focusing
lens. Verify the laser beam position on the SMA centering pin using the fiber alignment fixture
(706-0199-000). Once the alignment has been verified on the pin, the fixture is removed and
replaced with the brass focus lens assembly. The YAG turning mirror is adjusted to compensate
for any misalignment.
Figure 14A–Fiber Block, Assembly