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| projects:optics:log [2026/02/22 02:34] – [Day 2026-02-21 (k8ik, rahix)] rahix | projects:optics:log [2026/02/22 18:33] (current) – [Day 2026-02-21 (k8ik, rahix)] rahix | ||
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| We put a collimator on the other fiber end and aimed it at our camera to take some beam pictures. | We put a collimator on the other fiber end and aimed it at our camera to take some beam pictures. | ||
| - | Wrote a little script which outputs the average intensity across the camera frame as a single number so we can tune the fiber coupling against it [[https:// | + | Wrote a little script which outputs the average intensity across the camera frame as a single number so we can tune the fiber coupling against it [[https:// |
| Even after adjustment, only very little power coming out of the fiber. | Even after adjustment, only very little power coming out of the fiber. | ||
| Line 18: | Line 18: | ||
| {{: | {{: | ||
| - | With a bit more tuning of the fiber coupling, we end up seeing | + | With a bit more tuning of the fiber coupling, we end up seeing |
| {{: | {{: | ||
| {{: | {{: | ||
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| + | The curve does not look gaussian which is a bit worrying. Current assumption is that this is still a higher transversal mode that just looks close enough. | ||
| ==== Day 2026-01-31 (k8ik) ==== | ==== Day 2026-01-31 (k8ik) ==== | ||
| Aliexpress quality fiber and collimators arrived: | Aliexpress quality fiber and collimators arrived: | ||