The fibers in carbon fiber components are usually from a cloth so alignment is easy.... It's sort of like with fiberglass.you could lay up fiberglass cloth in a mold or you could use "chop glass", where short fibers were blown in place.... The chop layup is faster and cheaper, but the laid up cloth is both lighter and stronger.
BTW, we use carbon-fibre dishes in aircraft and on the satellites..... They are far better than metal dishes, particularly with thermal stability and weight.
You won't find may bits in a mass production lens made that way.
Edited to correct typo.