Abstract

We propose a design for an optical buffer that comprises two coupled silicon waveguides, which is capable of generating a large continuously tunable change in the propagation delay time. The optical delay can be varied by more than 100% through varying the spacing between the waveguides.

© 2011 OSA

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References

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  1. R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
    [CrossRef]
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    [CrossRef]
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    [CrossRef]
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    [CrossRef]
  9. M. L. Povinelli, M. Loncar, M. Ibanescu, E. J. Smythe, S. G. Johnson, F. Capasso, and J. D. Joannopoulos, “Evanescent-wave bonding between optical waveguides,” Opt. Lett. 30(22), 3042–3044 (2005).
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2008

2007

F. Xia, L. Sekaric, and Y. Vlasov, “Ultracompact optical buffers on a silicon chip,” Nat. Photonics 1(1), 65–71 (2007).
[CrossRef]

2006

2005

2004

1996

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Almeida, V. R.

Barrios, C. A.

Ben Yoo, S. J.

Bluementhal, D. J.

Bowers, J. E.

Capasso, F.

Chen, W.

N. K. Fontaine, J. Yang, Z. Pan, S. Chu, W. Chen, B. E. Little, and S. J. Ben Yoo, “Continuously tunable optical buffering at 40Gb/s for optical packet switching networks,” J. Lightwave Technol. 26(23), 3776–3783 (2008).
[CrossRef]

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

Chu, S.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

N. K. Fontaine, J. Yang, Z. Pan, S. Chu, W. Chen, B. E. Little, and S. J. Ben Yoo, “Continuously tunable optical buffering at 40Gb/s for optical packet switching networks,” J. Lightwave Technol. 26(23), 3776–3783 (2008).
[CrossRef]

Dietrich, E.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Djordjevic, S. S.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

Eiselt, M.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Fontaine, N. K.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

N. K. Fontaine, J. Yang, Z. Pan, S. Chu, W. Chen, B. E. Little, and S. J. Ben Yoo, “Continuously tunable optical buffering at 40Gb/s for optical packet switching networks,” J. Lightwave Technol. 26(23), 3776–3783 (2008).
[CrossRef]

Grosskopf, G.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Ibanescu, M.

Joannopoulos, J. D.

Johnson, S. G.

Karalar, A. O.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

Khurgin, J. B.

Kuller, L.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Langenhorst, R.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Lee, M. C.

Lipson, M.

Little, B. E.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

N. K. Fontaine, J. Yang, Z. Pan, S. Chu, W. Chen, B. E. Little, and S. J. Ben Yoo, “Continuously tunable optical buffering at 40Gb/s for optical packet switching networks,” J. Lightwave Technol. 26(23), 3776–3783 (2008).
[CrossRef]

Loncar, M.

Ludwig, R.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Mack, J. P.

Martinez, L.

Pan, Z.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

N. K. Fontaine, J. Yang, Z. Pan, S. Chu, W. Chen, B. E. Little, and S. J. Ben Yoo, “Continuously tunable optical buffering at 40Gb/s for optical packet switching networks,” J. Lightwave Technol. 26(23), 3776–3783 (2008).
[CrossRef]

Park, H.

Pieper, W.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Povinelli, M. L.

Sekaric, L.

F. Xia, L. Sekaric, and Y. Vlasov, “Ultracompact optical buffers on a silicon chip,” Nat. Photonics 1(1), 65–71 (2007).
[CrossRef]

Smythe, E. J.

Vlasov, Y.

F. Xia, L. Sekaric, and Y. Vlasov, “Ultracompact optical buffers on a silicon chip,” Nat. Photonics 1(1), 65–71 (2007).
[CrossRef]

Weber, H. G.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

Wu, M. C.

Xia, F.

F. Xia, L. Sekaric, and Y. Vlasov, “Ultracompact optical buffers on a silicon chip,” Nat. Photonics 1(1), 65–71 (2007).
[CrossRef]

Xu, Q.

Yang, C.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

Yang, J.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

N. K. Fontaine, J. Yang, Z. Pan, S. Chu, W. Chen, B. E. Little, and S. J. Ben Yoo, “Continuously tunable optical buffering at 40Gb/s for optical packet switching networks,” J. Lightwave Technol. 26(23), 3776–3783 (2008).
[CrossRef]

Yoo, S. J. B.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

IEEE Photon. Technol. Lett.

J. Yang, N. K. Fontaine, Z. Pan, A. O. Karalar, S. S. Djordjevic, C. Yang, W. Chen, S. Chu, B. E. Little, and S. J. B. Yoo, “Continuously tunable, wavelength-selective buffering in optical packet switching networks,” IEEE Photon. Technol. Lett. 20(12), 1030–1032 (2008).
[CrossRef]

J. Lightwave Technol.

R. Langenhorst, M. Eiselt, W. Pieper, G. Grosskopf, R. Ludwig, L. Kuller, E. Dietrich, and H. G. Weber, “Fiber loop optical buffer,” J. Lightwave Technol. 14(3), 324–335 (1996).
[CrossRef]

N. K. Fontaine, J. Yang, Z. Pan, S. Chu, W. Chen, B. E. Little, and S. J. Ben Yoo, “Continuously tunable optical buffering at 40Gb/s for optical packet switching networks,” J. Lightwave Technol. 26(23), 3776–3783 (2008).
[CrossRef]

J. Opt. Soc. Am. B

Nat. Photonics

F. Xia, L. Sekaric, and Y. Vlasov, “Ultracompact optical buffers on a silicon chip,” Nat. Photonics 1(1), 65–71 (2007).
[CrossRef]

Opt. Express

Opt. Lett.

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Figures (5)

Fig. 1
Fig. 1

Coupled silicon waveguides separated by distance d, with propagation delay varied through changing the separation.

Fig. 2
Fig. 2

Normalized propagation delay and group velocity for (a) the symmetric TM eigenmode and (b) the symmetric TE eigenmode of the dual silicon waveguide structure. Each waveguide has h=300nm, w=200nm.

Fig. 3
Fig. 3

Field intensity distribution of the TM mode (x-polarization) of the dual silicon waveguide structure for gap separations of (a) 500nm, (b) 100nm, and (c) 0nm at λ=1550nm. Shaded areas indicate the positions of the two waveguides. Insets in each graph show the equivalent color contour plots (red regions: high intensity, blue regions: low intensity).

Fig. 4
Fig. 4

(a) Normalized propagation delay and group velocity for the symmetric TE eigenmode (y-polarization) and (b) intensity profile for waveguide dimensions h=140nm, w=300nm, with a gap distance of 100nm at λ=1550nm.

Fig. 5
Fig. 5

Dispersion behavior for the symmetric (a) TM (waveguide as in Fig. 2) and (b) TE eigenmodes (waveguide as in Fig. 4).

Equations (1)

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n g = n p λ n p λ   and   D = λ c 2 n p λ 2 ,

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