The differential dispersion relation for the <i>E</i> and <i>H</i> modes (TM-like and TE-like, respectively) in planar photonic crystals is used to control the polarization-dependent propagation of light. <i>E</i>- and <i>H</i> -polarized beams were separated by 10° after propagating through a 20-mu;m -long planar photonic crystal in the wavelength range from 1250 to 1300 nm. The plane-wave expansion calculation matches well with the experimental results. This result represents the first demonstration, to our knowledge, of a polarization splitter realized in a planar photonic crystal configuration in the near-infrared wavelength range operating solely in transmission mode.
© 2004 Optical Society of America
Lijun Wu, M. Mazilu, J.-F. Gallet, T. F. Krauss, A. Jugessur, and R. M. De La Rue, "Planar photonic crystal polarization splitter," Opt. Lett. 29, 1620-1622 (2004)