Abstract

A compact waveguide crossing structure with low transmission losses and negligible crosstalk is demonstrated for silicon-on-insulator circuits. The crossing structure is based on a mode expander optimized by means of a genetic algorithm leading to transmission losses lower than 0.2dB and crosstalk and reflection losses below 40dB in a broad bandwidth of 20nm. Furthermore, the resulting crossing structure has a footprint of only 6×6μm2 and does not require any additional fabrication steps.

© 2009 Optical Society of America

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References

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2009

D. Tanaka, Y. Ikuma and H. Tsuda, IEICE Electron. Express 6, 407 (2009).
[CrossRef]

2008

2007

P. Sanchis, J. V. Galan, A. Griol, J. Marti, M. A. Piqueras, and J. M. Perdigues, IEEE Photon. Technol. Lett. 19, 1583 (2007).
[CrossRef]

W. Bogaerts, P. Dumon, D. Thourhout, and R. Baets, Opt. Lett. 32, 2801 (2007).
[CrossRef] [PubMed]

M. A. Popović, E. P. Ippen, and F. X. Kärtner, in Proceedings of 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society (IEEE, 2007), pp. 56-57.
[CrossRef]

2006

H. Chen and A. W. Poon, IEEE Photon. Technol. Lett. 18, 2260 (2006).
[CrossRef]

2004

T. Fukazawa, T. Hirano, F. Ohno, and T. Baba, Jpn. J. Appl. Phys. Part 1 43, 646 (2004).
[CrossRef]

1999

Y. Rahmat-Samii and E. Michielssen, Electromagnetic Optimization by Genetic Algorithms (Wiley, 1999).

Baba, T.

T. Fukazawa, T. Hirano, F. Ohno, and T. Baba, Jpn. J. Appl. Phys. Part 1 43, 646 (2004).
[CrossRef]

Baets, R.

Beals, M.

Bergman, K.

Biberman, A.

Bogaerts, W.

Chen, H.

H. Chen and A. W. Poon, IEEE Photon. Technol. Lett. 18, 2260 (2006).
[CrossRef]

Chen, L.

Cheng, J.

Dumon, P.

Fukazawa, T.

T. Fukazawa, T. Hirano, F. Ohno, and T. Baba, Jpn. J. Appl. Phys. Part 1 43, 646 (2004).
[CrossRef]

Galan, J. V.

P. Sanchis, J. V. Galan, A. Griol, J. Marti, M. A. Piqueras, and J. M. Perdigues, IEEE Photon. Technol. Lett. 19, 1583 (2007).
[CrossRef]

Griol, A.

P. Sanchis, J. V. Galan, A. Griol, J. Marti, M. A. Piqueras, and J. M. Perdigues, IEEE Photon. Technol. Lett. 19, 1583 (2007).
[CrossRef]

Hirano, T.

T. Fukazawa, T. Hirano, F. Ohno, and T. Baba, Jpn. J. Appl. Phys. Part 1 43, 646 (2004).
[CrossRef]

Hong, C.-Y.

Ikuma, Y.

D. Tanaka, Y. Ikuma and H. Tsuda, IEICE Electron. Express 6, 407 (2009).
[CrossRef]

Ippen, E. P.

M. A. Popović, E. P. Ippen, and F. X. Kärtner, in Proceedings of 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society (IEEE, 2007), pp. 56-57.
[CrossRef]

Kärtner, F. X.

M. A. Popović, E. P. Ippen, and F. X. Kärtner, in Proceedings of 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society (IEEE, 2007), pp. 56-57.
[CrossRef]

Kimerling, L. C.

Lee, B.

Lipson, M.

Marti, J.

P. Sanchis, J. V. Galan, A. Griol, J. Marti, M. A. Piqueras, and J. M. Perdigues, IEEE Photon. Technol. Lett. 19, 1583 (2007).
[CrossRef]

Michel, J.

Michielssen, E.

Y. Rahmat-Samii and E. Michielssen, Electromagnetic Optimization by Genetic Algorithms (Wiley, 1999).

Ohno, F.

T. Fukazawa, T. Hirano, F. Ohno, and T. Baba, Jpn. J. Appl. Phys. Part 1 43, 646 (2004).
[CrossRef]

Perdigues, J. M.

P. Sanchis, J. V. Galan, A. Griol, J. Marti, M. A. Piqueras, and J. M. Perdigues, IEEE Photon. Technol. Lett. 19, 1583 (2007).
[CrossRef]

Piqueras, M. A.

P. Sanchis, J. V. Galan, A. Griol, J. Marti, M. A. Piqueras, and J. M. Perdigues, IEEE Photon. Technol. Lett. 19, 1583 (2007).
[CrossRef]

Pomerene, A.

Poon, A. W.

H. Chen and A. W. Poon, IEEE Photon. Technol. Lett. 18, 2260 (2006).
[CrossRef]

Popovic, M. A.

M. A. Popović, E. P. Ippen, and F. X. Kärtner, in Proceedings of 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society (IEEE, 2007), pp. 56-57.
[CrossRef]

Rahmat-Samii, Y.

Y. Rahmat-Samii and E. Michielssen, Electromagnetic Optimization by Genetic Algorithms (Wiley, 1999).

Reed, G. T.

G. T. Reed, Silicon Photonics: The State of the Art (Wiley-Interscience, 2008).
[CrossRef]

Sanchis, P.

P. Sanchis, J. V. Galan, A. Griol, J. Marti, M. A. Piqueras, and J. M. Perdigues, IEEE Photon. Technol. Lett. 19, 1583 (2007).
[CrossRef]

Sherwood-Droz, N.

Sun, R.

Tanaka, D.

D. Tanaka, Y. Ikuma and H. Tsuda, IEICE Electron. Express 6, 407 (2009).
[CrossRef]

Thourhout, D.

Tsuda, H.

D. Tanaka, Y. Ikuma and H. Tsuda, IEICE Electron. Express 6, 407 (2009).
[CrossRef]

Wang, H.

IEEE Photon. Technol. Lett.

P. Sanchis, J. V. Galan, A. Griol, J. Marti, M. A. Piqueras, and J. M. Perdigues, IEEE Photon. Technol. Lett. 19, 1583 (2007).
[CrossRef]

H. Chen and A. W. Poon, IEEE Photon. Technol. Lett. 18, 2260 (2006).
[CrossRef]

IEICE Electron. Express

D. Tanaka, Y. Ikuma and H. Tsuda, IEICE Electron. Express 6, 407 (2009).
[CrossRef]

Jpn. J. Appl. Phys. Part 1

T. Fukazawa, T. Hirano, F. Ohno, and T. Baba, Jpn. J. Appl. Phys. Part 1 43, 646 (2004).
[CrossRef]

Opt. Express

Opt. Lett.

Other

M. A. Popović, E. P. Ippen, and F. X. Kärtner, in Proceedings of 20th Annual Meeting of the IEEE Lasers and Electro-Optics Society (IEEE, 2007), pp. 56-57.
[CrossRef]

Y. Rahmat-Samii and E. Michielssen, Electromagnetic Optimization by Genetic Algorithms (Wiley, 1999).

G. T. Reed, Silicon Photonics: The State of the Art (Wiley-Interscience, 2008).
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

(a) Schematic of the optimized waveguide crossing structure and (b) width parameters employed in the optimization process.

Fig. 2
Fig. 2

Electric field distribution of the waveguide crossing structure.

Fig. 3
Fig. 3

Fabricated waveguide crossing structure.

Fig. 4
Fig. 4

Experimental and 3D-FDTD simulation results of the transmission losses as a function of the transmission wavelength.

Fig. 5
Fig. 5

3D-FDTD simulation results of crosstalk and reflection losses as a function of the transmission wavelength. The inset shows the output light from the direct waveguide and, in rectangles, the output light from the cross waveguides.

Tables (1)

Tables Icon

Table 1 Optimum Width Values in Micrometers of the Arm of the Crossing Structure

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