5
assembly so the screw is more available. The
steering screws compress an o-ring, permitting
fine alignment of the end of the fiber relative
to the lens.
5.
Now, unscrew the silver sleeve from the black
end piece revealing the SMA connector (
Figure
4
).
Figure 4
- Attaching the fiber optic to the SMA
connector
6.
Slide the silver sleeve over the end of the fiber
optic connector and cable, leaving the
threaded end toward the end of the cable.
7.
Attach the fiber optic cable to the SMA
connector.
8.
Holding the black end piece, screw the silver
sleeve back into place.
9.
Insert the SMA connector and silver sleeve into
the hole in the optical assembly. For a first
adjustment, insert the assembly until the
alignment groove is even with the face of the
lens assembly. Later, you can optimize the
signal intensity by sliding the SMA connector
and silver sleeve in deeper. The alignment
grove assumes visible light. For measurements
in the UV, the silver sleeve should be inserted
further. The calculated position of the
alignment groove also assumes that the qpod
will contain a standard 10 x 10 mm cuvette
filled with water. Other cuvettes and sample
may require minor adjustments to maximize
throughput.
