Abstract
Human visual cells are photon detectors and its outer segment is similar to optical fibers, so based on waveguide theory, in this research, the normalized frequency and mode field diameter (MFD) of human visual cell's outer segment were calculated and analyzed. For cone cells, wavelength data was sampled at 380nm, 419nm, 531nm, 559nm and 760nm; for rod cells wavelength data was sampled at 380nm, 498nm and 760nm. It was shown that the outer segment of cone cells works in single mode; for rod cells, its outer segment works as multimode. This analysis is referential to the bionics design of photoelectric converters which will meet the high requirement of optical communication in the near future.
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