Abstract

We report a new type of polymer waveguide for two-dimensional (2-D) mode size transformation in which \Delta n (refractive index difference between core and cladding) is properly controlled along the waveguide axis while the core cross section is kept uniform. The beam diameter in the \Delta n-controlled waveguide where the core diameter is 3.7 \mum and \Delta n changes from 0.0027 to 0.0009 toward one end in the 5 mm-gradient \Delta n region, is about twice as large as that in a normal waveguide where \Delta n is 0.0027. The optical loss accompanied by mode size transformation is calculated to be less than 2.5% based on beam propagation methods (BPM's).

[IEEE ]

PDF Article

References

You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription

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 OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access OSA Member Subscription