Precise Optical Fiber Alignment System is required for precise and
dependable data transmission in an optical network. Most optical networks
contain several optical couplings, and even slight losses at these couplings
can result in substantial signal loss and data transfer issues. Minimising
coupling losses is crucial in these networks. Prior to assembly or packing of
an optical system, good fibre alignment results in the best coupling efficiency
and hence the least amount of signal loss. Minimal signal loss reduces power
needs, resulting in fewer repeaters, cheaper investment costs, and fewer
failures.
A well-characterized input beam
is linked into the fibre under test, and a raster scan of the fibre is
performed to identify first light, which is the output signal from the fibre
that indicates when the laser beam first enters the fibre. Once the initial
light is detected, the location of the fibre is modified in a lateral,
longitudinal, and angular coordinate system to determine the peak intensity of
the output optical signal. A successful fibre alignment solution necessitates
the modification of various critical motion parameters utilising a precision motion
control device and a search method appropriate for the application.
Key Motion Parameters For Fibre Alignment
When employing motion control
systems for Optical Waveguide Alignment System, the motion parameters selected for each axis have a significant
impact on the alignment process. The following are the major characteristics to
consider when selecting a motion controller for the position of peak power in
fibre alignment processes.
Minimum Incremental Motion - The least amount of motion that a
gadget can consistently and dependably produce. It should not be confused with
resolution, which is calculated using the lowest controller display value or
encoder increment. Rather, MIM refers to the controller's real physical
performance, which allows for the change of the fibre location while looking
for the position where maximal power is reached. While a smaller MIM can align
the fibre closer to the maximum peak power, this capability comes at a
substantial cost in terms of alignment speed and power increments.
The repeatability parameter describes a motion control system's capacity to achieve a repeatable position. It might be unidirectional or bidirectional. Fibre alignment systems generally have a bidirectional repeatability of 1 µm to a few nm. This characteristic is useful for rapidly determining the peak power location of similar device designs.
Optical Fiber Alignment System is a measure of a motion system's ability to maintain a position within a specific window of time and error. Aligning fibres for assembly processes like bonding is dependent on the fibres' positional stability once the peak power has been determined. Position stability requirements vary from 0.5 µm to a few microns.
Follow our Facebook and Twitter for more information about our product.
