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Yang Jiao,
Shanhui Fan, David A. B. Miller, "Demonstration of Systematic Photonic
Crystal Device Design and Optimization By Low Rank Adjustments: an
Extremely Compact Mode Separator," Optics Letters
30, Issue 2, 141-143 (January
2005)
We present a powerful design
and optimization method for devices in a photonic crystal. The method
is based on a Wannier basis field expansion and efficient matrix
analysis techniques for searching through a vast number of designs. The
method enables the design of many compact optical devices with complex
and novel functionalities. We present a design example of a very
compact mode separator 8.2X13.3
mm
in size, which demultiplexes the 3 modes of an input photonic crystal
multimode waveguide into 3 single mode output waveguides. We verify the
method with FDTD calculations.
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