The first two posts linked below mention the use of a 6 meter fiber optical cable between Curiosity's ChemCam's receiver telescope on top of a tower and the spectrometer used to analyze the collected light tucked away in the belly of Curiosity.

Presumably Perseverance's upgraded SuperCam is similar in this regard.

Are these the first, and the only use of fiber optic cables beyond cis-lunar space, or is it more widespread?


Fiber in space:

  • $\begingroup$ Some space agencies are more open than others about spacecraft details. You probably can get an answer for NASA, ESA, and JAXA. Good luck getting details about Chinese spacecraft. $\endgroup$
    – DrSheldon
    Mar 31 at 3:31

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