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by anotherpaulg 284 days ago
Below are some great videos on the physics and practicalities of single mode fiber. They are Thorlabs videos, so are slanted more towards the use of SMF in a laser lab rather than a telecom setting. They reference a lot of the theory, but also provide a good intuition about how and why SMF works so well.

https://youtu.be/FbOXRuBQt_U

https://youtu.be/HvJeXakc8Kc