Abstract
A compact arrayed waveguide grating triplexer with silica waveguides
on silicon is designed, fabricated, and characterized. Different cross-order
designs, which utilize different diffraction orders to cover a large spectral
range from 1310 to 1550 nm, are analyzed in detail. B-Ge codoped upper cladding
is used to facilitate the gap filling between the waveguides to reduce the
loss and the polarization sensitivity. The measured spectra confirmed the
operation principle of the cross-order arrayed waveguide grating design, with
channel wavelengths and passbands consistent with simulations.
© 2011 IEEE
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