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Realization of a compact and single-mode optical passive polarization converter

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5 Author(s)
Huan, Z. ; Microelectron. Sci. Lab., Columbia Univ., New York, NY, USA ; Scarmozzino, R. ; Nagy, G. ; Steel, J.
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A single-section, compact, passive polarization converter has been designed and fabricated on GaAs-AlGaAs. The device uses an optimized waveguide structure with angled-facets to obtain 90/spl deg/-polarization rotation in a single section; this waveguide structure eliminates the need for longitudinal variation and hence avoids any section-to-section coupling losses. A transverse electric (TE) to transverse magnetic (TM) polarization conversion of 96% is achieved for a conversion length of /spl ap/720 μm.

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Photonics Technology Letters, IEEE  (Volume:12 ,  Issue: 3 )