Ocean Optics FOS-2x2-TTL - Manual (Page 11)

1: Setup
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Figure 1: Rear of FOS Unit Figure 2: Front of FOS Unit
Adjusting Optical Power
The FOS is factory optimized on a fiber-core-diameter of 200µm. If other core diameters are used, you
can change the focal points. Refer to Figures 1 and 2 when adjusting the optical power.
► Procedure
Follow the steps below to change your focal points:
1. Move the shutter switch (4 – Figure 2) into the OPEN position to open the shutter.
2. Connect a fiber optic spectrometer or an optical power meter to one side of the FOS.
3. Connect a light source to the other side of the FOS.
4. Loosen the locking screw (5 – Figure 1) with a hexagonal socket screw key (SW 2.0 mm).
5. Move the SMA connector (2 – Figure 2) to adjust the optics of the FOS.
6. Tighten the locking screw (5 – Figure 1) when properly adjusted.
RIGHT
LEFT
5
3
1
2
4 6