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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 31, Iss. 10 — May. 15, 2013
  • pp: 1616–1620

Wide-Band Optical Mode Converters for Coupling Between Fibers and Silicon Photonic Wires With Large Misalignment Tolerance

Kai-Ning Ku and Ming-Chang M. Lee

Journal of Lightwave Technology, Vol. 31, Issue 10, pp. 1616-1620 (2013)

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A wideband optical mode converter is presented for coupling between fibers and sub-wavelength silicon photonic wires with large misalignment tolerance. This converter consists of a three-dimensional (3-D) SU-8 taper and silicon inverted nanotapers, which are cascaded and show coupling losses of 2.8 dB and 4.1 dB for the TE- and TM-polarized waves launched from a cleaved single mode fiber. The fiber misalignment tolerance for 3-dB transmittance drop is estimated to be ±3µm.

© 2013 IEEE

Kai-Ning Ku and Ming-Chang M. Lee, "Wide-Band Optical Mode Converters for Coupling Between Fibers and Silicon Photonic Wires With Large Misalignment Tolerance," J. Lightwave Technol. 31, 1616-1620 (2013)

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