Cynosure Acclaim 7000, Техническое руководство

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Apogee Elite/Apogee 5500/Acclaim 7000 850-1257-000, Rev. 2 Page 25 of 70
Technical Guide
Beam Path: Energy Monitor/Beam Combiner
The energy monitor uses a coated beam combiner that samples a small portion of the laser beam.
This fraction of resonator energy is sent to and calibrated at the laser control board maintaining
the energy level continuously in a closed loop operation. The monitor (also called an energy
pick-off) and beam combiner assemblies are different for the Apogee Elite lasers and the Apogee
5500/Acclaim 7000 lasers.
The Apogee Elite beam combiner, see Figure 8A , has a different pick-off assembly and
placement of the aiming source, a red laser diode. The Nd:YAG and Alexandrite beams are
combined at the beam combiner and directed to the same focus lens and laser fiber. The beam
that is reflected from this turning mirror is the signal sent to the pick-off. The aim beam is folded
into the beam path at the Nd: YAG turning mirror.
The Apogee 5500/Acclaim 7000 beam combiner, see Figures 8B and 8C , reflects the aiming
LED so that it is coincident with the laser beam onto the proximal end of the delivery fiber.
Aiming Source: LED and Laser
For the Apogee 5500/Acclaim 7000 systems, the light emitting diode (LED) produces a low-
power, visible source of blue-green light for aiming the laser beam. The LED sits in an
adjustable mount. The red diode laser (635 nm) is mounted to the YAG turning mirror and has
its own separate adjustments. For information on aligning, refer to the
Final Test and
Calibration Procedure
XYZ Mount
The XYZ mount contains a focusing lens, see Figures 8A, 8B and 8B , that collects the light
emitted from the laser rod and aiming LED, and couples it into the input or proximal end of the
optical fiber. The X and Y adjustments on the fiber-focusing lens center the lens focal point on
the fiber core. The Z adjustment positions the focal plane relative to the end of the fiber.
The XYZ mount may require field adjustments after shipment or after service involving repair or
replacement of optical components.
Realign the XYZ each time the lens is replaced.