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- Feb 12, 2016
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Hi,
in this thread I want to summarize the experiments with aim to construct a 50W "laser cannon" build. This was result of thinking about what one can do with a virgin NUBM08 block.
How would you like to call this baby?
You can consider this thread as a continuation of that one called "Gatling laser":
but now I finally started the work to combine all these 8 corrected beams into one.
First of all, I needed to immobilise all C-lenses on perforated plates to avoid rotational artefacts. For this I made 2mm deep pitches exactly as wide as the lenses. This job had to be done twice until all the lenses fitted perfectly deep and parallel into pitches.
The fit was so tight that I did not even need to glue the lenses, double sided adhesive tape was enough to attach all of them.
Later working plan was as follows:
1. KE both upper and bottom rows horizontally to make 2 groups (left and right) well separated for PBSing at the end. This separation in the center needs to be because you cannot PBS 2 parallel beams if they are too close. This knife edging would also make all the beams parallel resolving possible issues from LDs not being properly installed in the block.
2. KE resulting beams vertically to reduce the gap to 4mm (this because if these were NUBM44 with collimation to infinity and not close range focused like some of these 08 with G-balls, the beams should be squares with 4mm hight and not lines like these).
3. PBS left and right groups at the end into one super ray directing it forward again!
For the 1st knife edging I installed 2 assembled Lasertack micro KE modules on the existing Thorlabs frame bars with aid of small custom made sliding adapters.
You can see that after this the beams were reflected to the right and formed a rectangle with 12mm horizontal and 10mm vertical separation between beam centers (pic. 8). The spots are not square and not all the same because this NUBM08 block had all LDs with slightly different collimation by G-balls in place...
to be contnued...
in this thread I want to summarize the experiments with aim to construct a 50W "laser cannon" build. This was result of thinking about what one can do with a virgin NUBM08 block.
How would you like to call this baby?
You can consider this thread as a continuation of that one called "Gatling laser":
Laser Gatling - getting 8 CORRECTED parallel beams from NUBM08 block
Hi, I am returning with another build about what one can do with a virgin NUBM08 block. Let us call it - Gatling laser??? You can consider this thread as a continuation of that one: https://laserpointerforums.com/threads/test-of-diodes-in-nubm08-block-all-at-once.103392/ but now I want to play...
laserpointerforums.com
but now I finally started the work to combine all these 8 corrected beams into one.
First of all, I needed to immobilise all C-lenses on perforated plates to avoid rotational artefacts. For this I made 2mm deep pitches exactly as wide as the lenses. This job had to be done twice until all the lenses fitted perfectly deep and parallel into pitches.
The fit was so tight that I did not even need to glue the lenses, double sided adhesive tape was enough to attach all of them.
Later working plan was as follows:
1. KE both upper and bottom rows horizontally to make 2 groups (left and right) well separated for PBSing at the end. This separation in the center needs to be because you cannot PBS 2 parallel beams if they are too close. This knife edging would also make all the beams parallel resolving possible issues from LDs not being properly installed in the block.
2. KE resulting beams vertically to reduce the gap to 4mm (this because if these were NUBM44 with collimation to infinity and not close range focused like some of these 08 with G-balls, the beams should be squares with 4mm hight and not lines like these).
3. PBS left and right groups at the end into one super ray directing it forward again!
For the 1st knife edging I installed 2 assembled Lasertack micro KE modules on the existing Thorlabs frame bars with aid of small custom made sliding adapters.
You can see that after this the beams were reflected to the right and formed a rectangle with 12mm horizontal and 10mm vertical separation between beam centers (pic. 8). The spots are not square and not all the same because this NUBM08 block had all LDs with slightly different collimation by G-balls in place...
to be contnued...
