CHAPTER 1: SYSTEM DESCRIPTION
LW500A/LW600A PULSED Nd:YAG LASER
1-8 990-539
4 Timeshare Unit (Only for Time Shared configurations). When closed, laser light output is
reflected internally. Depending on the specification, 0 – 3 timeshare shutters will be installed.
5 Resonator Mirror Holder (PR). Holds the Partially Reflective resonator mirror. Light excited in the
Laser Chamber is amplified between the two resonator mirrors and output through this mirror as a
laser beam.
6 Main (Resonator) Shutter # 1. When this shutter is closed, the laser beam will not be produced even
if the flashlamp is turned ON. This shutter opens and closes in unison with Main Shutter #2.
7 Laser Resonator / Oscillator Chamber. Contains the flashlamps and the Nd:YAG rod. The
flashlamp lights up to excite the Nd:YAG rod and emit the laser beam.
8 Main Shutter # 2. When this shutter is closed, the laser beam will not be produced even if the
flashlamp is turned ON. This shutter opens and closes in unison with Main Shutter #1.
9 Resonator Mirror Holder (HR). Holds the Highly Reflective resonator mirror. Light excited in the
Laser Chamber is amplified between the two resonator mirrors and output as a laser beam.
10 Power Monitor Unit. Measures the resonator power and energy output of the Nd:YAG laser beam.
11 Guide Beam Steering Mirrors. Adjusts the guide beam (visible laser beam) so that this beam passes
down the center of the Nd:YAG laser beam optical path.
12 Guide Beam. Outputs a red, visible laser beam. This visible laser beam is used as a guide beam for
oscillation adjustment and incident beam adjustment. Additionally the guide beam can also be used
for positioning parts to be welded (since the Nd:YAG beam is invisible).
13 Laser Beam Input Unit (up to 4). Connect the optical fiber to this unit. The Laser Beam Input Unit
focuses the laser beam emitted from the laser oscillator chamber into the optical fiber. Depending on
the specification, 1 – 4 laser beam input units will be installed.
14 Branch Shutter (up to 4). When closed, the laser light output is blocked for that output. Depending
on the configuration, 1 – 4 branch shutters will be installed.
15 Beamsplitter (up to 4). Splits a laser beam into the number of deliveries and reflects them onto each
laser beam input unit. Depending on the configuration, 1 – 4 beamsplitters will be installed.
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