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Compact Branched Optical Waveguides Using High-Index-Contrast Stacked Structure

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Abstract

We have developed a novel branched optical waveguide using a stacked directional coupler, which consists of two Si3N4 core layers (each 0.3 μm thick) stacked with a thin (0.2 μm) SiO2 film in between. Using this stacked high-index-contrast system, the size of the multiple branched waveguides can be dramatically reduced compared with the conventional Y-shaped branches. A four-branch optical waveguide is designed and fabricated, and good performance of distribution power of 25 ± 4% to each branch has been achieved.

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References

  1. K. K. Lee, D. R. Lim, H. C. Luan, A. Agarwal, J. Foresi and L. C. Kimerling: Appl. Phys. Lett. 77 (2000) 1617.

    Article  Google Scholar 

  2. K. K. Lee, D. R. Lim, H. C. Luan, A. Agarwal, J. Foresi and L. C. Kimerling: Appl. Phys. Lett. 77 (2000) 2258.

    Article  Google Scholar 

  3. S. Libertino, S. Coffa and M. Saggio: Mater. Sci. Semicond. Process. 3 (2000) 375.

    Google Scholar 

  4. T. Doi, T. Namba, A. Uehara, M. Nagata, S. Miyazaki, K, Shibahara, S. Yokoyama, A. Iwata, T. Ae and M. Hirose: Jpn. J. Appl. Phys. 35 (1996) 1405.

    Article  Google Scholar 

  5. T. Kohonen: Self-Organization and Associative Memory (Springer Verlag, Berlin, 1989) 3rd ed.

    Google Scholar 

  6. U. Hilleringmann and K. Goser: IEEE Trans. Electron Devices 42 (1995) 841.

    Article  Google Scholar 

  7. T. Namba, A. Uehara, T. Doi, T. Nagata, Y. Kuroda, S. Miyazaki, K. Shibahara, S. Yokoyama, A. Iwata and M. Hirose: Jpn. J. Appl. Phys. 35 (1996) 941.

    Article  Google Scholar 

  8. T. Doi, A. Iwata and M. Hirose: IEICE Trans. Electron. E80-C (1997) 625.

  9. M. Hikita, Y. Shuto, M. Amano, R. Yoshimura, S. Tomaru and H. Kozawaguchi: Appl. Phys. Lett. 63 (1993) 1161.

    Article  Google Scholar 

  10. U. Koren: Optoelectronic Integration: Physics, Technology and Application, ed. O. Wada (Kluwer, Boston, 1994) p. 233.

    Google Scholar 

  11. T. Nagata, T. Tanaka, K. Miyake, H. Kurotaki, S. Yokoyama and M. Koyanagi: Jpn. J. Appl. Phys. 33 (1994) 822.

    Article  Google Scholar 

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Authors and Affiliations

  1. Research Center for Nanodevices and Systems, Hiroshima University, 1-4-2 Kagamiyama, Higashi-Hiroshima, Hiroshima, 739-8527, Japan

    Yasuhiro Hara, Shin Yokoyama & Kazutaka Umeda

Authors
  1. Yasuhiro Hara
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  2. Shin Yokoyama
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  3. Kazutaka Umeda
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Correspondence to Shin Yokoyama.

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Hara, Y., Yokoyama, S. & Umeda, K. Compact Branched Optical Waveguides Using High-Index-Contrast Stacked Structure. OPT REV 10, 357–360 (2003). https://doi.org/10.1007/s10043-003-0357-4

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  • DOI: https://doi.org/10.1007/s10043-003-0357-4

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