THORLABS BC106-UV, Руководство по эксплуатации

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89 Operating the Beam Profiler
3.5.4 Extension Hardware
3.5.4.1 BC1M2 Extension Set for M² measurement
The BC1M2 M
2
Analysis Extension Set is comprised of a motorized Translation
Stage of selectable length, plus mounting accessories to be used with the BC106
Beam Profiler. The Beam Profiler itself and required means for beam alignment and
focusing are not supplied with the Extension Set and need to be ordered separately.
Two different models with different translation stage lengths are available:
Extension Set Model BC1M2-150 BC1M2-300
Length of translation stage 150 mm 300 mm
Required Travel Length of the M² Extension Set
Please see the Selecting Focal and Stage Length chapter for information on
selecting the model with a suited travel length for your particular application.
The following picture shows the 150 mm translation stage and controller, two
mounting base plates (left) and a mounting plate for the Beam Profiler (2 parts,
right). The supplied screw set, power supply and cables are not shown. See
Translation Stage drawing for a detailed drawing.
BC1M2-150 Extension Set
The stage movement is fully controlled by the software module (included in BC106
software package V3.0 or newer) of the BC106 which allows it to take
measurements at different stage positions and perform a complete M
2
analysis. This
is done taking multiple measurements of the beam diameter of the collimated beam
at different positions along the beam propagation axis. A hyperbolic curve fit to the
measured data yields reliable and repeatable values for beam waist diameter and
position, Rayleigh range, divergence angle, beam pointing direction, waist
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