Abstract

We report the design and fabrication of a compact multi-core fiber fan-in/fan-out using a grating coupler array on the SOI platform. The grating couplers are fully-etched, enabling the whole circuit to be fabricated in a single lithography and etching step. Thanks to the apodized design for the grating couplers and the introduction of an aluminum reflective mirror, a highest coupling efficiency of −3.8 dB with 3 dB coupling bandwidth of 48 nm and 1.5 dB bandwidth covering the whole C band, together with crosstalk lower than −32 dB are demonstrated.

© 2015 Optical Society of America

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References

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    [Crossref]
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    [Crossref]
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    [Crossref] [PubMed]
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    [Crossref]
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    [Crossref]
  16. F. Van Laere, W. Bogaerts, P. Dumon, G. Roelkens, D. Van Thourhout, and R. Baets, “Focusing polarization diversity grating couplers in silicon-on-insulator,” J. Lightwave Technol. 27(5), 612–618 (2009).
    [Crossref]

2014 (1)

2013 (1)

2012 (3)

2010 (1)

2009 (2)

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

F. Van Laere, W. Bogaerts, P. Dumon, G. Roelkens, D. Van Thourhout, and R. Baets, “Focusing polarization diversity grating couplers in silicon-on-insulator,” J. Lightwave Technol. 27(5), 612–618 (2009).
[Crossref]

2008 (1)

H. Lin, J. T. M. Stevenson, A. M. Gundlach, C. C. Dunare, and A. J. Walton, “Direct Al–Al contact using low temperature wafer bonding for integrating MEMS and CMOS devices,” Microelectron. Eng. 85(5-6), 1059–1061 (2008).
[Crossref]

Abe, Y.

Allington-Smith, J.

Awaji, Y.

W. Klaus, J. Sakaguchi, B. J. Puttnam, Y. Awaji, N. Wada, T. Kobayashi, and M. Watanabe, “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett. 24(21), 1902–1905 (2012).
[Crossref]

Baets, R.

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

F. Van Laere, W. Bogaerts, P. Dumon, G. Roelkens, D. Van Thourhout, and R. Baets, “Focusing polarization diversity grating couplers in silicon-on-insulator,” J. Lightwave Technol. 27(5), 612–618 (2009).
[Crossref]

Birks, T. A.

Bland-Hawthorn, J.

Bogaerts, W.

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

F. Van Laere, W. Bogaerts, P. Dumon, G. Roelkens, D. Van Thourhout, and R. Baets, “Focusing polarization diversity grating couplers in silicon-on-insulator,” J. Lightwave Technol. 27(5), 612–618 (2009).
[Crossref]

Brown, G.

Claes, T.

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

Dimarcello, F. V.

Ding, Y.

Dumon, P.

Dunare, C. C.

H. Lin, J. T. M. Stevenson, A. M. Gundlach, C. C. Dunare, and A. J. Walton, “Direct Al–Al contact using low temperature wafer bonding for integrating MEMS and CMOS devices,” Microelectron. Eng. 85(5-6), 1059–1061 (2008).
[Crossref]

Fini, J. M.

Fishteyn, M.

Gundlach, A. M.

H. Lin, J. T. M. Stevenson, A. M. Gundlach, C. C. Dunare, and A. J. Walton, “Direct Al–Al contact using low temperature wafer bonding for integrating MEMS and CMOS devices,” Microelectron. Eng. 85(5-6), 1059–1061 (2008).
[Crossref]

Harris, R. J.

Klaus, W.

W. Klaus, J. Sakaguchi, B. J. Puttnam, Y. Awaji, N. Wada, T. Kobayashi, and M. Watanabe, “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett. 24(21), 1902–1905 (2012).
[Crossref]

Kobayashi, T.

Kubota, H.

Lin, H.

H. Lin, J. T. M. Stevenson, A. M. Gundlach, C. C. Dunare, and A. J. Walton, “Direct Al–Al contact using low temperature wafer bonding for integrating MEMS and CMOS devices,” Microelectron. Eng. 85(5-6), 1059–1061 (2008).
[Crossref]

Masuda, H.

Matsuo, S.

Miaymoto, Y.

Monberg, E. M.

O’Faolain, L.

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

Ono, H.

Ou, H.

Peucheret, C.

Puttnam, B. J.

W. Klaus, J. Sakaguchi, B. J. Puttnam, Y. Awaji, N. Wada, T. Kobayashi, and M. Watanabe, “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett. 24(21), 1902–1905 (2012).
[Crossref]

Roelkens, G.

Sakaguchi, J.

W. Klaus, J. Sakaguchi, B. J. Puttnam, Y. Awaji, N. Wada, T. Kobayashi, and M. Watanabe, “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett. 24(21), 1902–1905 (2012).
[Crossref]

Scheerlinck, S.

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

Schrauwen, J.

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

Shibahara, K.

Stevenson, J. T. M.

H. Lin, J. T. M. Stevenson, A. M. Gundlach, C. C. Dunare, and A. J. Walton, “Direct Al–Al contact using low temperature wafer bonding for integrating MEMS and CMOS devices,” Microelectron. Eng. 85(5-6), 1059–1061 (2008).
[Crossref]

Taillaert, D.

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

Takara, H.

Takenaga, K.

Taunay, T. F.

Thomson, R. R.

Van Laere, F.

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

F. Van Laere, W. Bogaerts, P. Dumon, G. Roelkens, D. Van Thourhout, and R. Baets, “Focusing polarization diversity grating couplers in silicon-on-insulator,” J. Lightwave Technol. 27(5), 612–618 (2009).
[Crossref]

Van Thourhout, D.

F. Van Laere, W. Bogaerts, P. Dumon, G. Roelkens, D. Van Thourhout, and R. Baets, “Focusing polarization diversity grating couplers in silicon-on-insulator,” J. Lightwave Technol. 27(5), 612–618 (2009).
[Crossref]

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

Wada, N.

W. Klaus, J. Sakaguchi, B. J. Puttnam, Y. Awaji, N. Wada, T. Kobayashi, and M. Watanabe, “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett. 24(21), 1902–1905 (2012).
[Crossref]

Walton, A. J.

H. Lin, J. T. M. Stevenson, A. M. Gundlach, C. C. Dunare, and A. J. Walton, “Direct Al–Al contact using low temperature wafer bonding for integrating MEMS and CMOS devices,” Microelectron. Eng. 85(5-6), 1059–1061 (2008).
[Crossref]

Watanabe, M.

W. Klaus, J. Sakaguchi, B. J. Puttnam, Y. Awaji, N. Wada, T. Kobayashi, and M. Watanabe, “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett. 24(21), 1902–1905 (2012).
[Crossref]

Yan, M. F.

Yvind, K.

Zhu, B.

IEEE Photon. Technol. Lett. (2)

F. Van Laere, T. Claes, J. Schrauwen, S. Scheerlinck, W. Bogaerts, D. Taillaert, L. O’Faolain, D. Van Thourhout, and R. Baets, “Compact focusing grating couplers for silicon-on-insulator integrated circuits,” IEEE Photon. Technol. Lett. 27, 612–618 (2009).

W. Klaus, J. Sakaguchi, B. J. Puttnam, Y. Awaji, N. Wada, T. Kobayashi, and M. Watanabe, “Free-space coupling optics for multicore fibers,” IEEE Photon. Technol. Lett. 24(21), 1902–1905 (2012).
[Crossref]

J. Lightwave Technol. (1)

Microelectron. Eng. (1)

H. Lin, J. T. M. Stevenson, A. M. Gundlach, C. C. Dunare, and A. J. Walton, “Direct Al–Al contact using low temperature wafer bonding for integrating MEMS and CMOS devices,” Microelectron. Eng. 85(5-6), 1059–1061 (2008).
[Crossref]

Opt. Express (2)

Opt. Lett. (3)

Other (7)

T. Kobayashi, H. Takara, A. Sano, T. Mizuno, H. Kawakami, Y. Miyamoto, K. Hiraga, Y. Abe, H. Ono, M. Wada, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Yamada, H. Masuda, and T. Morioka, “2×344 Tb/s propagation-direction interleaved transmission over 1500-km MCF enhanced by multicarrier full electric-field digital back-propagation,” in European Conference on Optical Communication2013, paper PD3.E.4.

T. Mizuno, T. Kobayashi, H. Takara, A. Sano, H. Kawakami, T. Nakagawa, Y. Miyamoto, Y. Abe, T. Goh, M. Oguma, T. Sakamoto, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, and T. Morioka, “12-core×3-mode dense space division multiplexed transmission over 40 km employing multi-carrier signals with parallel MIMO equalization,” in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference2014, paper Th5B.2.

J. Sakaguchi, B. J. Puttnam, W. Klaus, Y. Awaji, N. Wada, A. Kanno, T. Kawanishi, K. Imamura, H. Inaba, K. Mukasa, R. Sugizaki, T. Kobayashi, and M. Watanabe, “19-core fiber transmission of 19×100×172-Gb/s SDM-WDM-PDM-QPSK signals at 305 Tb/s,” in Optical Fiber Communication Conference/National Fiber Optic Engineers Conference2012, paper PDP5C.1.

Y. Abe, K. Shikama, S. Yanagi, and T. Takahashi, “Low-loss physical-contact-type fan-out device for 12-core multicore fiber,” in European Conference on Optical Communication2013, paper P.1.7.
[Crossref]

T. Morioka, “New generation optical infrastructure technologies: “EXAT initiative” towards 2020 and beyond,” in OptoElectronics and Communications Conference2009, paper FT4.

H. Takara, A. Sano, T. Kobayashi, H. Kubota, H. Kawakami, A. Matsuura, Y. Miyamoto, Y. Abe, H. Ono, K. Shikama, Y. Goto, K. Tsujikawa, Y. Sasaki, I. Ishida, K. Takenaga, S. Matsuo, K. Saitoh, M. Koshiba, and T. Morioka, “1.01-Pb/s (12 SDM/222 WDM/456 Gb/s) crosstalk-managed transmission with 91.4-b/s/Hz aggregate spectral efficiency,” in European Conference on Optical Communication2012, paper Th.3.C.1.
[Crossref]

P. Bienstman, “Rigorous and efficient modelling of wavelength scale photonic components,” Ph.D. dissertation (University of Ghent, 2001).

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Figures (7)

Fig. 1
Fig. 1 (a) Schematic of the grating coupler-based FI/FO. (b) Structure of the grating coupler.
Fig. 2
Fig. 2 (a) Calculated required refractive index ni of the artificial material of a scattering cell and the corresponding power leakage factor as a function of the cell length li. li and ni distributions of the grating couplers designed for coupling to (b) an SSMF and (c) a single core of an MCF.
Fig. 3
Fig. 3 Simulated coupling efficiency as a function of wavelength for the SSMF and a single core of the MCF, with hd = 1600 nm, and hu = 1000 nm.
Fig. 4
Fig. 4 (a) Fabricated device. (b) Details of the grating coupler array for directly coupling with an MCF. (c) Scanning electron microscopy (SEM) image of the apodized PhC grating coupler.
Fig. 5
Fig. 5 Measured transmission of a single 45°-slant. The inset shows the 3D finite-difference time-domain (FDTD) simulated field distribution when light gets reflected by the 45°-slant.
Fig. 6
Fig. 6 Measurement setup of the grating coupler array-based on-chip MCF FI/FO.
Fig. 7
Fig. 7 Measured coupling efficiency and crosstalk for the MCF FI/FO. The inset shows details of the coupling efficiency over the C-band.

Equations (1)

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2α( z )= G 2 ( z ) / [ 1 0 z G 2 ( z )dz ]

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