Abstract

Grating couplers are a promising approach to implement efficient fiber–chip coupling. However, their strong polarization dependence makes dual-polarization operation challenging. In this Letter we propose, for the first time, a polarization-independent grating coupler for thick rib silicon-on-insulator (SOI) waveguides. Coupling efficiency is optimized by designing the grating pitch and duty cycle, without varying the bottom oxide thickness, which significantly simplifies practical implementation. Directivity of the grating coupler is enhanced by a high reflectivity layer under the bottom oxide after the selective removal of the Si substrate. Dual-polarization coupling efficiency of 2.8dB is shown.

© 2012 Optical Society of America

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  1. U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.
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    [CrossRef]
  3. A. Velasco, M. Calvo, P. Cheben, A. Ortega-Moñux, J. Schmid, C. Alonso-Ramos, I. Molina-Fernández, J. Lapointe, M. Vachon, S. Janz, and D.-X. Xu, Opt. Lett. 37, 365 (2012).
    [CrossRef]
  4. D. Dai and J. E. Bowers, Opt. Express 19, 18614 (2011).
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  5. D. Taillaert, P. Bienstman, and R. Baets, Opt. Lett. 29, 2749 (2004).
    [CrossRef]
  6. C. Alonso-Ramos, A. Ortega-Moñux, I. Molina-Fernández, P. Cheben, L. Zavargo-Peche, and R. Halir, Opt. Express 18, 15189 (2010).
    [CrossRef]
  7. C. Alonso-Ramos, A. Ortega-Moñux, L. Zavargo-Peche, R. Halir, J. de Oliva-Rubio, I. Molina-Fernández, P. Cheben, D.-X. Xu, S. Janz, N. Kim, and B. Lamontagne, Opt. Lett. 36, 2647 (2011).
    [CrossRef]
  8. R. Halir, P. Cheben, J. H. Schmid, R. Ma, D. Bedard, S. Janz, D.-X. Xu, A. Densmore, J. Lapointe, and I. Molina-Fernández, Opt. Lett. 35, 3243 (2010).
    [CrossRef]
  9. Z. Wang, Y. Tang, L. Wosinski, and S. He, IEEE Photon. Technol. Lett. 22, 1568 (2010).
    [CrossRef]
  10. G. Roelkens, D. Vermuelen, S. Selvaraja, R. Halir, W. Bogaerts, and D. Van Thourhourt, IEEE J. Sel. Top. Quantum Electron. 17, 571 (2011).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]
  13. P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.
  14. F. Van Laere, G. Roelkens, M. Ayre, J. Schrauwen, D. Taillaert, D. Van Thourhout, T. Krauss, and R. Baets, J. Lightwave Technol. 25, 151 (2007).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]
  17. L. Zavargo-Peche, A. Ortega-Moñux, J. Wangüemert-Pérez, and I. Molina-Fernández, Prog. Electromagn. Res. 123, 447 (2012).
    [CrossRef]
  18. T. Tamir and S. Peng, Appl. Phys. 14, 235 (1977).
    [CrossRef]

2012 (4)

2011 (4)

2010 (3)

2007 (1)

2006 (1)

P. Cheben, S. Janz, D.-X. Xu, B. Lamontagne, A. Delage, and S. Tanev, IEEE Photon. Technol. Lett. 18, 13 (2006).
[CrossRef]

2004 (1)

1995 (1)

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

1977 (1)

T. Tamir and S. Peng, Appl. Phys. 14, 235 (1977).
[CrossRef]

Alonso-Ramos, C.

Asghari, M.

M. Asghari and A. Krishnamoorthy, Nat. Photonics 5, 268 (2012).
[CrossRef]

Augustin, L.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

Ayre, M.

Bach, H.

Bacon, D. D.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Baets, R.

Bedard, D.

Bienstman, P.

Bock, P.

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Bogaerts, W.

G. Roelkens, D. Vermuelen, S. Selvaraja, R. Halir, W. Bogaerts, and D. Van Thourhourt, IEEE J. Sel. Top. Quantum Electron. 17, 571 (2011).
[CrossRef]

Bogdanov, A.

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Bowers, J. E.

Calvo, M.

Cheben, P.

Chen, X.

Chirovsky, L. M. F.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

D’Asaro, L. A.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Dahringer, D.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Dai, D.

de Laat, W.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

de Oliva-Rubio, J.

Delage, A.

P. Cheben, S. Janz, D.-X. Xu, B. Lamontagne, A. Delage, and S. Tanev, IEEE Photon. Technol. Lett. 18, 13 (2006).
[CrossRef]

Densmore, A.

Florjanczyk, M.

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Goossen, K. W.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Groen, F.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

Halir, R.

Hanfoug, R.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

He, S.

Z. Wang, Y. Tang, L. Wosinski, and S. He, IEEE Photon. Technol. Lett. 22, 1568 (2010).
[CrossRef]

Hui, S. P.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Janz, S.

A. Velasco, M. Calvo, P. Cheben, A. Ortega-Moñux, J. Schmid, C. Alonso-Ramos, I. Molina-Fernández, J. Lapointe, M. Vachon, S. Janz, and D.-X. Xu, Opt. Lett. 37, 365 (2012).
[CrossRef]

C. Alonso-Ramos, A. Ortega-Moñux, L. Zavargo-Peche, R. Halir, J. de Oliva-Rubio, I. Molina-Fernández, P. Cheben, D.-X. Xu, S. Janz, N. Kim, and B. Lamontagne, Opt. Lett. 36, 2647 (2011).
[CrossRef]

R. Halir, P. Cheben, J. H. Schmid, R. Ma, D. Bedard, S. Janz, D.-X. Xu, A. Densmore, J. Lapointe, and I. Molina-Fernández, Opt. Lett. 35, 3243 (2010).
[CrossRef]

P. Cheben, S. Janz, D.-X. Xu, B. Lamontagne, A. Delage, and S. Tanev, IEEE Photon. Technol. Lett. 18, 13 (2006).
[CrossRef]

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Khalique, U.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

Kim, N.

Kossives, D.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Krauss, T.

Krishnamoorthy, A.

M. Asghari and A. Krishnamoorthy, Nat. Photonics 5, 268 (2012).
[CrossRef]

Lamontagne, B.

C. Alonso-Ramos, A. Ortega-Moñux, L. Zavargo-Peche, R. Halir, J. de Oliva-Rubio, I. Molina-Fernández, P. Cheben, D.-X. Xu, S. Janz, N. Kim, and B. Lamontagne, Opt. Lett. 36, 2647 (2011).
[CrossRef]

P. Cheben, S. Janz, D.-X. Xu, B. Lamontagne, A. Delage, and S. Tanev, IEEE Photon. Technol. Lett. 18, 13 (2006).
[CrossRef]

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Lapointe, J.

Leibenguth, R.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Lentine, A. L.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Ma, R.

Miller, D. A. B.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Molina-Fernández, I.

Ortega-Moñux, A.

Peng, S.

T. Tamir and S. Peng, Appl. Phys. 14, 235 (1977).
[CrossRef]

Roelkens, G.

G. Roelkens, D. Vermuelen, S. Selvaraja, R. Halir, W. Bogaerts, and D. Van Thourhourt, IEEE J. Sel. Top. Quantum Electron. 17, 571 (2011).
[CrossRef]

F. Van Laere, G. Roelkens, M. Ayre, J. Schrauwen, D. Taillaert, D. Van Thourhout, T. Krauss, and R. Baets, J. Lightwave Technol. 25, 151 (2007).
[CrossRef]

Romero-García, S.

Schell, M.

Schmid, J.

Schmid, J. H.

Schrauwen, J.

Scott, A.

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Selvaraja, S.

G. Roelkens, D. Vermuelen, S. Selvaraja, R. Halir, W. Bogaerts, and D. Van Thourhourt, IEEE J. Sel. Top. Quantum Electron. 17, 571 (2011).
[CrossRef]

Simon, K.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

Sinclair, K.

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Smit, M.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

Solheim, B.

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Taillaert, D.

Tamir, T.

T. Tamir and S. Peng, Appl. Phys. 14, 235 (1977).
[CrossRef]

Tanev, S.

P. Cheben, S. Janz, D.-X. Xu, B. Lamontagne, A. Delage, and S. Tanev, IEEE Photon. Technol. Lett. 18, 13 (2006).
[CrossRef]

Tang, Y.

Z. Wang, Y. Tang, L. Wosinski, and S. He, IEEE Photon. Technol. Lett. 22, 1568 (2010).
[CrossRef]

Tsang, H. K.

Tseng, B.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Vachon, M.

A. Velasco, M. Calvo, P. Cheben, A. Ortega-Moñux, J. Schmid, C. Alonso-Ramos, I. Molina-Fernández, J. Lapointe, M. Vachon, S. Janz, and D.-X. Xu, Opt. Lett. 37, 365 (2012).
[CrossRef]

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

van de Moosdijk, M.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

van der Tol, J.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

Van Laere, F.

Van Thourhourt, D.

G. Roelkens, D. Vermuelen, S. Selvaraja, R. Halir, W. Bogaerts, and D. Van Thourhourt, IEEE J. Sel. Top. Quantum Electron. 17, 571 (2011).
[CrossRef]

Van Thourhout, D.

van Veldhoven, P.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

Velasco, A.

Vermuelen, D.

G. Roelkens, D. Vermuelen, S. Selvaraja, R. Halir, W. Bogaerts, and D. Van Thourhourt, IEEE J. Sel. Top. Quantum Electron. 17, 571 (2011).
[CrossRef]

Walker, J. A.

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Wang, Z.

Z. Wang, Y. Tang, L. Wosinski, and S. He, IEEE Photon. Technol. Lett. 22, 1568 (2010).
[CrossRef]

Wangüemert-Pérez, J.

L. Zavargo-Peche, A. Ortega-Moñux, J. Wangüemert-Pérez, and I. Molina-Fernández, Prog. Electromagn. Res. 123, 447 (2012).
[CrossRef]

Wosinski, L.

Z. Wang, Y. Tang, L. Wosinski, and S. He, IEEE Photon. Technol. Lett. 22, 1568 (2010).
[CrossRef]

Xu, D.-X.

A. Velasco, M. Calvo, P. Cheben, A. Ortega-Moñux, J. Schmid, C. Alonso-Ramos, I. Molina-Fernández, J. Lapointe, M. Vachon, S. Janz, and D.-X. Xu, Opt. Lett. 37, 365 (2012).
[CrossRef]

C. Alonso-Ramos, A. Ortega-Moñux, L. Zavargo-Peche, R. Halir, J. de Oliva-Rubio, I. Molina-Fernández, P. Cheben, D.-X. Xu, S. Janz, N. Kim, and B. Lamontagne, Opt. Lett. 36, 2647 (2011).
[CrossRef]

R. Halir, P. Cheben, J. H. Schmid, R. Ma, D. Bedard, S. Janz, D.-X. Xu, A. Densmore, J. Lapointe, and I. Molina-Fernández, Opt. Lett. 35, 3243 (2010).
[CrossRef]

P. Cheben, S. Janz, D.-X. Xu, B. Lamontagne, A. Delage, and S. Tanev, IEEE Photon. Technol. Lett. 18, 13 (2006).
[CrossRef]

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

Zavargo-Peche, L.

Zhang, R.

Zhu, Y.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

Appl. Phys. (1)

T. Tamir and S. Peng, Appl. Phys. 14, 235 (1977).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (1)

G. Roelkens, D. Vermuelen, S. Selvaraja, R. Halir, W. Bogaerts, and D. Van Thourhourt, IEEE J. Sel. Top. Quantum Electron. 17, 571 (2011).
[CrossRef]

IEEE Photon. Technol. Lett. (3)

P. Cheben, S. Janz, D.-X. Xu, B. Lamontagne, A. Delage, and S. Tanev, IEEE Photon. Technol. Lett. 18, 13 (2006).
[CrossRef]

K. W. Goossen, J. A. Walker, L. A. D’Asaro, S. P. Hui, B. Tseng, R. Leibenguth, D. Kossives, D. D. Bacon, D. Dahringer, L. M. F. Chirovsky, A. L. Lentine, and D. A. B. Miller, IEEE Photon. Technol. Lett. 7, 360 (1995).
[CrossRef]

Z. Wang, Y. Tang, L. Wosinski, and S. He, IEEE Photon. Technol. Lett. 22, 1568 (2010).
[CrossRef]

J. Lightwave Technol. (1)

Nat. Photonics (1)

M. Asghari and A. Krishnamoorthy, Nat. Photonics 5, 268 (2012).
[CrossRef]

Opt. Express (2)

Opt. Lett. (6)

Prog. Electromagn. Res. (1)

L. Zavargo-Peche, A. Ortega-Moñux, J. Wangüemert-Pérez, and I. Molina-Fernández, Prog. Electromagn. Res. 123, 447 (2012).
[CrossRef]

Other (2)

P. Cheben, M. Florjanczyk, P. Bock, C. Alonso-Ramos, B. Lamontagne, A. Bogdanov, S. Janz, D.-X. Xu, M. Vachon, A. Scott, A. Ortega-Moñux, I. Molina-Fernández, B. Solheim, and K. Sinclair, in 13th International Conference on Transparent Optical Networks (ICTON) (2011), pp. 1–4.

U. Khalique, Y. Zhu, J. van der Tol, L. Augustin, R. Hanfoug, F. Groen, P. van Veldhoven, M. Smit, M. van de Moosdijk, W. de Laat, and K. Simon, in Integrated Photonics Research and Applications Topical Meeting (IPRA 05) (2009), pp. 11–13.

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Figures (4)

Fig. 1.
Fig. 1.

Grating coupler schematic top and side views.

Fig. 2.
Fig. 2.

Air coupling efficiency at 1.55 μm wavelength as a function of pitch (d) and duty cycle (DC) for a grating in SOI waveguide with (a) silicon substrate; and (b) selective Si substrate removal and Au layer underneath BOX layer. Regions of interest with air coupling efficiency greater than 65% have been shadowed.

Fig. 3.
Fig. 3.

Field plot for the proposed structure excited with the fundamental (a) TE and (b) TM modes of the access waveguide.

Fig. 4.
Fig. 4.

Coupling efficiency to the fundamental mode of the access waveguide of the grating coupler as a function of the fiber tilt angle (ψ) when the Gaussian beam of an SMF-28 optical fiber is used as input.

Equations (2)

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ϕkTE(TM)=arcsin[1n(neffTE(TM)+kλd)],
CE=ηairηfib,

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