Abstract
The authors report on an analytic connector loss model for step-index
polymer optical fibers (SI-POF). The model describes the non-linear dependencies
for combinations of the most important intrinsic and extrinsic influence parameters
like Fresnel reflections, mismatches in numerical aperture (NA) and core diameters,
as well as lateral, longitudinal and angular offsets. As connector losses
strongly depend on the mode distribution, expressions for the mode-dependent
coupling efficiencies for the various influence parameters are derived. This
way, the model can handle any rotationally symmetric mode distribution including
the uniform mode distribution (UMD) and the equilibrium mode distribution
(EMD) in the steady-state.It is shown that for step-index fibers, lateral and longitudinal offsets
can be handled in a similar way, which reduces the overall effort for the
mathematical description. For the typical case of identical fibers, the authors
also derive easy-to-apply approximations for a combination of lateral and
longitudinal offsets under UMD and EMD conditions. The results are in good
agreement with ray-tracing simulations and are evaluated for the cases of
identical fibers and the worst case parameter constellation for the SI-POF
in the IEC A4a.2 fiber class.
© 2013 IEEE
PDF Article
More Like This
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription