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Overview
When sources and filters change within the calibration unit, the image of the source moves with respect to the fiber. We had expected to compensate for these motions during alignment, but in practice this has not been possible.
As such, we have added two motorized compensators into the system, which will correct alignment for each source (8x) and filter (12x) combination. One motorized stage will move the exisiting beamsplitter in pitch and yaw, and the other will move a new fold mirror in pitch and yaw.
The position of these motors will be determined via a look-up table (i.e. if source is A and filter1 is B and filter2 is C, move mirror1 to X1,Y1 and move mirror2 to X2,Y2).
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Relevant Devices
Description | Qty | Source | Part Number | Link |
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Galil 4040 Motor Controller | 1 | Galil | DMC-4040(MO)-C022(5V)-I000-D4040 | https://www.galil.com/order/part-number-generator/dmc-40x0#DMC-4040(MO)-C022(5V)-I000-D4040 |
Motorized Actuator, Miniature, 12 mm Travel, Stepper, 25-pin D-Sub | 4 | Newport | TRA12PPD |
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Relevant Functional Block Diagram
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