Abstract
We design a compact triplexer based on two-dimensional (2D) hexagonal lattice
photonic crystals (PCs). A folded directional coupler (FDC) is introduced in the
triplexer beside the point-defect micro-cavities and line-defect waveguides. Because
of the reflection feedback of the FDC, high channel drop efficiency can be realized
and a compact size with the order of micrometers can be maintained. The proposed
device is analyzed using the plane wave expansion method, and its transmission
characteristics are calculated using the finite-difference time-domain method. The
footprint of the triplexer is about 12×9 µm, and its extinction ratios are less than
-20 dB for 1310 nm, approximately -20 dB for 1490 nm, and under -40 dB for 1550 nm,
making it a potentially essential device in future fiber-to-the-home networks.
© 2011 Chinese Optics Letters
PDF Article
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