For cost down

Which vcsels are used in different modes?
Is it feasible to use only two vcsels in medium and far mode?


  • +1
    •  Analog Employees 
    on Aug 11, 2020 7:44 AM 6 months ago

    Near mode uses 2 VCSELs, the ones on the sides of the lens,  while medium and far use all 4 VCSELs.

    It all depends on the range you want to achieve - 2 VCSELs are feasible for medium and far but the range will be reduced. It's hard to say by how much without measuring the optical power.