Ultracompact high-efficiency polarizing beam splitter with a hybrid photonic crystal and conventional waveguide structure
Optics Letters, Vol. 28, Issue 23, pp. 2384-2386 (2003)
http://dx.doi.org/10.1364/OL.28.002384
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Abstract
We propose an ultracompact high-efficiency polarizing beam splitter that operates over a wide wavelength range and is based on a hybrid photonic crystal and a conventional waveguide structure. Within a small area (15μm ×and 10μm), this polarizing beam splitter separates TM- and TE-polarized modes into orthogonal output waveguides. Results of simulations with the two-dimensional finite-difference time-domain method show that 99.3% of TM-polarized light is deflected by the photonic crystal structure (with a 28.0-dB extinction ratio), whereas 99.0% of TE-polarized light propagates through the structure (with a 32.2-dB extinction ratio). Wave vector diagrams are employed to explain the operation of a polarizing beam splitter. Tolerance analysis reveals a large tolerance to fabrication errors.
© 2003 Optical Society of America
OCIS Codes
(230.3120) Optical devices : Integrated optics devices
(230.3990) Optical devices : Micro-optical devices
(230.5440) Optical devices : Polarization-selective devices
(230.7370) Optical devices : Waveguides
(250.5300) Optoelectronics : Photonic integrated circuits
Citation
Seunghyun Kim, Gregory P. Nordin, Jingbo Cai, and Jianhua Jiang, "Ultracompact high-efficiency polarizing beam splitter with a hybrid photonic crystal and conventional waveguide structure," Opt. Lett. 28, 2384-2386 (2003)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-28-23-2384
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