benjojo.co.uk

benjojo posted 08 Oct 2025 20:28 +0000

Enjoy this exploded 100G QSFP28 CWDM4 optic, if you look carefully you can even see the absolutely tiny de/mux inside the dark glass area

a PCB and a lot of metal and tiny optical fiber parts inside of a 100G QSFP28 CWDM4 optic

piggo@piggo.space replied 08 Oct 2025 20:30 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/my5W2231Y1jc4GdQ9B

@benjojo closest we got to magic crystals

benjojo replied 08 Oct 2025 20:33 +0000
in reply to: https://piggo.space/objects/67d57644-7046-4d50-8c8f-dec0d2daaa4d

@piggo One of the ICs in the high speed lane path was taken off and put it into a Scanning Electron Microscope, but the lapping wasn't enough so it just exposed some epoxy gunk, alas I didn't have a chance for a 2nd go (it was late and a SEM is a pain in the ass to cycle)

piggo@piggo.space replied 08 Oct 2025 20:37 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/2GG5tHfFHL8TK2y7q8

@benjojo shame but still interesting to see whats inside. this and microwave circuits feel like the frontiers of applied science, so weird it could as well be something from a scifi movie

livingshredder@furry.. replied 08 Oct 2025 20:43 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/my5W2231Y1jc4GdQ9B

@benjojo i wonder whether optical or RF engineering wins the prize for the darkest art

benjojo replied 08 Oct 2025 20:47 +0000
in reply to: https://furry.engineer/users/livingshredder/statuses/115340492055862333

@livingshredder RF engineering 100% makes cooler/more alien looking PCBs/devices

livingshredder@furry.. replied 08 Oct 2025 21:18 +0000
in reply to: https://benjojo.co.uk/u/benjojo/h/KhH2t1P1Kz1JfP36TS

@benjojo https://www.youtube.com/watch?v=rahzrPdEeE8