Chapter 5 Laser Unit
5.4 LU4A Four-laser Module A
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3
Installing the green HeNe laser
Use the polarizer-equipped tool provided with the green HeNe laser and mount the laser so that the
polarization orientation of the laser light is vertical.
When the polarization orientation of the laser light is vertical at the incident port of the AOTF, the
polarization orientation of the laser light is horizontal at the emission port of the AOTF.
Figure 5.4-19
1. Align the protrusion of the polarizer-equipped tool to
the mark.
Figure 5.4-20
2. Mount the polarizer-equipped tool to the place. See
the figure at right. The curved side of the
polarizer-equipped tool faces the front of the
four-laser module A.
Protrusion
Mark
Laser unit front
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