Abstract

In this paper a compact and efficient polarization splitter using horizontal slotted waveguides is presented. The splitter is designed by finite-difference-time-domain simulation and realized experimentally. The splitter is built by using a direction coupler consisting of two horizontal slotted waveguides and achieves a high extinction ratio of 14.1 and 16.8 dB for cross and through ports. The optimal coupling length is found to be 15 µm. The device exhibits a good response of extinction ratio across C + L broadband. The splitter obtained is readily used for a polarization diversity circuit, particularly for platforms with horizontal slot waveguides.

© 2013 OSA

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2012 (2)

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

2011 (6)

2010 (5)

J. Zhang, M. Yu, G.-Q. Lo, and D.-L. Kwong, “Silicon-waveguide-based mode evolution polarization rotator,” IEEE J. Sel. Top. Quantum Electron.16(1), 53–60 (2010).
[CrossRef]

Y. Yue, L. Zhang, J.-Y. Yang, R. G. Beausoleil, and A. E. Willner, “Silicon-on-insulator polarization splitter using two horizontally slotted waveguides,” Opt. Lett.35(9), 1364–1366 (2010).
[CrossRef] [PubMed]

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

S. Lee, S. C. Eom, J. S. Chang, C. Huh, G. Y. Sung, and J. H. Shin, “Label-free optical biosensing using a horizontal air-slot SiNx microdisk resonator,” Opt. Express18(20), 20638–20644 (2010).
[CrossRef] [PubMed]

S. Y. Zhu, G. Q. Lo, and D. L. Kwong, “Low-loss amorphous silicon wire waveguide for integrated photonics: effect of fabrication process and the thermal stability,” Opt. Express18(24), 25283–25291 (2010).
[CrossRef] [PubMed]

2009 (1)

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

2008 (3)

2007 (3)

2006 (2)

B. Jalali, V. Raghunathan, D. Dimitropoulos, and O. Boyraz, “Raman-based silicon photonics,” IEEE J. Sel. Top. Quantum Electron.12(3), 412–421 (2006).
[CrossRef]

H. Fukuda, K. Yamada, T. Tsuchizawa, T. Watanabe, H. Shinojima, and S. Itabashi, “Ultrasmall polarization splitter based on silicon wire waveguides,” Opt. Express14(25), 12401–12408 (2006).
[CrossRef] [PubMed]

2005 (4)

2004 (2)

2003 (1)

Almeida, V. R.

Aydinli, A.

I. Kiyat, A. Aydinli, and N. Dagli, “A compact silicon-on-insulator polarization splitter,” IEEE Photon. Technol. Lett.17(1), 100–102 (2005).
[CrossRef]

Baehr-Jones, T.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
[CrossRef] [PubMed]

Baets, R.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Bandaru, P. R.

Barrios, C. A.

Barwicz, T.

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

Beausoleil, R. G.

Biaggio, I.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Blasco, J.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Bogaerts, W.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Bojko, R.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
[CrossRef] [PubMed]

Boyko, B.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

Boyraz, O.

B. Jalali, V. Raghunathan, D. Dimitropoulos, and O. Boyraz, “Raman-based silicon photonics,” IEEE J. Sel. Top. Quantum Electron.12(3), 412–421 (2006).
[CrossRef]

Chang, J. S.

Cheben, P.

Chen, S.

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

J. Zhang, H. Zhang, S. Chen, M. Yu, G. Q. Lo, and D. L. Kwong, “A tunable polarization diversity silicon photonics filter,” Opt. Express19(14), 13063–13072 (2011).
[CrossRef] [PubMed]

C. Li, J. H. Song, J. Zhang, H. Zhang, S. Chen, M. Yu, and G. Q. Lo, “Silicon polarization independent microring resonator-based optical tunable filter circuit with fiber assembly,” Opt. Express19(16), 15429–15437 (2011).
[CrossRef] [PubMed]

X. Tu, X. Xu, S. Chen, J. Yu, and Q. Wang, “Simulation demonstration and experimental fabrication of a multiple-slot waveguide,” IEEE Photon. Technol. Lett.20(5), 333–335 (2008).
[CrossRef]

Cooper, M. L.

Crozier, K. B.

S. Lin, J. Hu, and K. B. Crozier, “Ultracompact, broadband slot waveguide polarization splitter,” Appl. Phys. Lett.98(15), 151101 (2011).

Dagli, N.

I. Kiyat, A. Aydinli, and N. Dagli, “A compact silicon-on-insulator polarization splitter,” IEEE Photon. Technol. Lett.17(1), 100–102 (2005).
[CrossRef]

Daldosso, N.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Das, S.

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

Diederich, F.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Dimitropoulos, D.

B. Jalali, V. Raghunathan, D. Dimitropoulos, and O. Boyraz, “Raman-based silicon photonics,” IEEE J. Sel. Top. Quantum Electron.12(3), 412–421 (2006).
[CrossRef]

Ding, R.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
[CrossRef] [PubMed]

Ding, Y.

Dumon, P.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Eom, S. C.

Esembeson, B.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Fedeli, J. M.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Feng, J.

Freude, W.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Fukuda, H.

Galán, J. V.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

García-Rupérez, J.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Garrido, B.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Gautier, P.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Guider, R.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Haus, H. A.

Hernández, S.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Hill, C.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
[CrossRef] [PubMed]

Hochberg, M.

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
[CrossRef] [PubMed]

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

Hu, J.

S. Lin, J. Hu, and K. B. Crozier, “Ultracompact, broadband slot waveguide polarization splitter,” Appl. Phys. Lett.98(15), 151101 (2011).

Huang, Y.

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

Huh, C.

Hvam, J. M.

Ippen, E. P.

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

M. R. Watts, H. A. Haus, and E. P. Ippen, “Integrated mode-evolution-based polarization splitter,” Opt. Lett.30(9), 967–969 (2005).
[CrossRef] [PubMed]

Itabashi, S.

Jalali, B.

B. Jalali, V. Raghunathan, D. Dimitropoulos, and O. Boyraz, “Raman-based silicon photonics,” IEEE J. Sel. Top. Quantum Electron.12(3), 412–421 (2006).
[CrossRef]

Janz, S.

Jordana, E.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Kartner, F. X.

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

Kee, J. S.

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

Kim, W.-J.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

Kiyat, I.

I. Kiyat, A. Aydinli, and N. Dagli, “A compact silicon-on-insulator polarization splitter,” IEEE Photon. Technol. Lett.17(1), 100–102 (2005).
[CrossRef]

Koos, C.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Kwong, D. L.

Kwong, D.-L.

J. Zhang, M. Yu, G.-Q. Lo, and D.-L. Kwong, “Silicon-waveguide-based mode evolution polarization rotator,” IEEE J. Sel. Top. Quantum Electron.16(1), 53–60 (2010).
[CrossRef]

Lebour, Y.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Lee, S.

Leuthold, J.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Li, C.

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

C. Li, J. H. Song, J. Zhang, H. Zhang, S. Chen, M. Yu, and G. Q. Lo, “Silicon polarization independent microring resonator-based optical tunable filter circuit with fiber assembly,” Opt. Express19(16), 15429–15437 (2011).
[CrossRef] [PubMed]

Lin, S.

S. Lin, J. Hu, and K. B. Crozier, “Ultracompact, broadband slot waveguide polarization splitter,” Appl. Phys. Lett.98(15), 151101 (2011).

Lipson, M.

Liu, L.

Liu, Y.

Lo, G. Q.

Lo, G.-Q.

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

J. Zhang, M. Yu, G.-Q. Lo, and D.-L. Kwong, “Silicon-waveguide-based mode evolution polarization rotator,” IEEE J. Sel. Top. Quantum Electron.16(1), 53–60 (2010).
[CrossRef]

Lo, P. G.-Q.

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

Martí, J.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Martínez, A.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Michinobu, T.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Mookherjea, S.

O’Malley, T.

Panepucci, R. R.

Pavesi, L.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Pomerene, A.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
[CrossRef] [PubMed]

Popovic, M. A.

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

Raghunathan, V.

B. Jalali, V. Raghunathan, D. Dimitropoulos, and O. Boyraz, “Raman-based silicon photonics,” IEEE J. Sel. Top. Quantum Electron.12(3), 412–421 (2006).
[CrossRef]

Rakich, P. T.

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

Reinhardt, W.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
[CrossRef] [PubMed]

Sanchis, P.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Shin, J. H.

Shinojima, H.

Smith, H. I.

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

Socci, L.

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

Song, J.

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

Song, J. H.

Spano, R.

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
[CrossRef] [PubMed]

Spott, A.

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
[CrossRef] [PubMed]

Sung, G. Y.

Tarr, N. G.

Thong, J. T. L.

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

Tsuchizawa, T.

Tu, X.

X. Tu, X. Xu, S. Chen, J. Yu, and Q. Wang, “Simulation demonstration and experimental fabrication of a multiple-slot waveguide,” IEEE Photon. Technol. Lett.20(5), 333–335 (2008).
[CrossRef]

Vallaitis, T.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Vorreau, P.

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

Waldron, P.

Wang, Q.

X. Tu, X. Xu, S. Chen, J. Yu, and Q. Wang, “Simulation demonstration and experimental fabrication of a multiple-slot waveguide,” IEEE Photon. Technol. Lett.20(5), 333–335 (2008).
[CrossRef]

Watanabe, T.

Watts, M. R.

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

M. R. Watts and H. A. Haus, “Integrated mode-evolution-based polarization rotators,” Opt. Lett.30(2), 138–140 (2005).
[CrossRef] [PubMed]

M. R. Watts, H. A. Haus, and E. P. Ippen, “Integrated mode-evolution-based polarization splitter,” Opt. Lett.30(9), 967–969 (2005).
[CrossRef] [PubMed]

Willner, A. E.

Xu, D.-X.

Xu, Q.

Xu, X.

X. Tu, X. Xu, S. Chen, J. Yu, and Q. Wang, “Simulation demonstration and experimental fabrication of a multiple-slot waveguide,” IEEE Photon. Technol. Lett.20(5), 333–335 (2008).
[CrossRef]

Yamada, K.

Yang, J.-Y.

Yang, S.-H.

Ye, W. N.

Yu, J.

X. Tu, X. Xu, S. Chen, J. Yu, and Q. Wang, “Simulation demonstration and experimental fabrication of a multiple-slot waveguide,” IEEE Photon. Technol. Lett.20(5), 333–335 (2008).
[CrossRef]

Yu, M.

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

J. Zhang, H. Zhang, S. Chen, M. Yu, G. Q. Lo, and D. L. Kwong, “A tunable polarization diversity silicon photonics filter,” Opt. Express19(14), 13063–13072 (2011).
[CrossRef] [PubMed]

C. Li, J. H. Song, J. Zhang, H. Zhang, S. Chen, M. Yu, and G. Q. Lo, “Silicon polarization independent microring resonator-based optical tunable filter circuit with fiber assembly,” Opt. Express19(16), 15429–15437 (2011).
[CrossRef] [PubMed]

J. Zhang, M. Yu, G.-Q. Lo, and D.-L. Kwong, “Silicon-waveguide-based mode evolution polarization rotator,” IEEE J. Sel. Top. Quantum Electron.16(1), 53–60 (2010).
[CrossRef]

Yue, Y.

Yvind, K.

Zhang, H.

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

J. Zhang, H. Zhang, S. Chen, M. Yu, G. Q. Lo, and D. L. Kwong, “A tunable polarization diversity silicon photonics filter,” Opt. Express19(14), 13063–13072 (2011).
[CrossRef] [PubMed]

C. Li, J. H. Song, J. Zhang, H. Zhang, S. Chen, M. Yu, and G. Q. Lo, “Silicon polarization independent microring resonator-based optical tunable filter circuit with fiber assembly,” Opt. Express19(16), 15429–15437 (2011).
[CrossRef] [PubMed]

Zhang, J.

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

J. Zhang, H. Zhang, S. Chen, M. Yu, G. Q. Lo, and D. L. Kwong, “A tunable polarization diversity silicon photonics filter,” Opt. Express19(14), 13063–13072 (2011).
[CrossRef] [PubMed]

C. Li, J. H. Song, J. Zhang, H. Zhang, S. Chen, M. Yu, and G. Q. Lo, “Silicon polarization independent microring resonator-based optical tunable filter circuit with fiber assembly,” Opt. Express19(16), 15429–15437 (2011).
[CrossRef] [PubMed]

J. Zhang, M. Yu, G.-Q. Lo, and D.-L. Kwong, “Silicon-waveguide-based mode evolution polarization rotator,” IEEE J. Sel. Top. Quantum Electron.16(1), 53–60 (2010).
[CrossRef]

Zhang, L.

Zhou, H.

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

Zhou, Z.

Zhu, S. Y.

Appl. Phys. Lett. (3)

R. Ding, T. Baehr-Jones, W.-J. Kim, B. Boyko, R. Bojko, A. Spott, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Low-loss asymmetric strip-loaded slot waveguides in silicon-on-insulator,” Appl. Phys. Lett.98(23), 233303 (2011).
[CrossRef]

S. Lin, J. Hu, and K. B. Crozier, “Ultracompact, broadband slot waveguide polarization splitter,” Appl. Phys. Lett.98(15), 151101 (2011).

H. Zhang, S. Das, J. Zhang, Y. Huang, C. Li, S. Chen, H. Zhou, M. Yu, P. G.-Q. Lo, and J. T. L. Thong, “Efficient and broadband polarization rotator using horizontal slot waveguide for silicon photonics,” Appl. Phys. Lett.101(2), 021105 (2012).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron. (2)

B. Jalali, V. Raghunathan, D. Dimitropoulos, and O. Boyraz, “Raman-based silicon photonics,” IEEE J. Sel. Top. Quantum Electron.12(3), 412–421 (2006).
[CrossRef]

J. Zhang, M. Yu, G.-Q. Lo, and D.-L. Kwong, “Silicon-waveguide-based mode evolution polarization rotator,” IEEE J. Sel. Top. Quantum Electron.16(1), 53–60 (2010).
[CrossRef]

IEEE Photon. Technol. Lett. (3)

I. Kiyat, A. Aydinli, and N. Dagli, “A compact silicon-on-insulator polarization splitter,” IEEE Photon. Technol. Lett.17(1), 100–102 (2005).
[CrossRef]

H. Zhang, J. Zhang, S. Chen, J. Song, J. S. Kee, M. Yu, and G.-Q. Lo, “CMOS-compatible fabrication of silicon based sub-100nm slot waveguide with efficient channel-slot coupler,” IEEE Photon. Technol. Lett.24(1), 10–12 (2012).
[CrossRef]

X. Tu, X. Xu, S. Chen, J. Yu, and Q. Wang, “Simulation demonstration and experimental fabrication of a multiple-slot waveguide,” IEEE Photon. Technol. Lett.20(5), 333–335 (2008).
[CrossRef]

Nano Lett. (1)

A. Martínez, J. Blasco, P. Sanchis, J. V. Galán, J. García-Rupérez, E. Jordana, P. Gautier, Y. Lebour, S. Hernández, R. Spano, R. Guider, N. Daldosso, B. Garrido, J. M. Fedeli, L. Pavesi, and J. Martí, “Ultrafast all-optical switching in a silicon-nanocrystal-based silicon slot waveguide at Telecom Wavelengths,” Nano Lett.10(4), 1506–1511 (2010).
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Nat. Photonics (2)

C. Koos, P. Vorreau, T. Vallaitis, P. Dumon, W. Bogaerts, R. Baets, B. Esembeson, I. Biaggio, T. Michinobu, F. Diederich, W. Freude, and J. Leuthold, “All-optical high-speed signal processing with silicon–organic hybrid slot waveguides,” Nat. Photonics3(4), 216–219 (2009).
[CrossRef]

T. Barwicz, M. R. Watts, M. A. Popovic, P. T. Rakich, L. Socci, F. X. Kartner, E. P. Ippen, and H. I. Smith, “Polarization-transparent microphotonic devices in the strong confinement limit,” Nat. Photonics1(1), 57–60 (2007).
[CrossRef]

Opt. Express (10)

J. Zhang, H. Zhang, S. Chen, M. Yu, G. Q. Lo, and D. L. Kwong, “A tunable polarization diversity silicon photonics filter,” Opt. Express19(14), 13063–13072 (2011).
[CrossRef] [PubMed]

C. Li, J. H. Song, J. Zhang, H. Zhang, S. Chen, M. Yu, and G. Q. Lo, “Silicon polarization independent microring resonator-based optical tunable filter circuit with fiber assembly,” Opt. Express19(16), 15429–15437 (2011).
[CrossRef] [PubMed]

A. Spott, T. Baehr-Jones, R. Ding, Y. Liu, R. Bojko, T. O’Malley, A. Pomerene, C. Hill, W. Reinhardt, and M. Hochberg, “Photolithographically fabricated low-loss asymmetric silicon slot waveguides,” Opt. Express19(11), 10950–10958 (2011).
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L. Liu, Y. Ding, K. Yvind, and J. M. Hvam, “Silicon-on-insulator polarization splitting and rotating device for polarization diversity circuits,” Opt. Express19(13), 12646–12651 (2011).
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H. Fukuda, K. Yamada, T. Tsuchizawa, T. Watanabe, H. Shinojima, and S. Itabashi, “Ultrasmall polarization splitter based on silicon wire waveguides,” Opt. Express14(25), 12401–12408 (2006).
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C. A. Barrios and M. Lipson, “Electrically driven silicon resonant light emitting device based on slot-waveguide,” Opt. Express13(25), 10092–10101 (2005).
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S.-H. Yang, M. L. Cooper, P. R. Bandaru, and S. Mookherjea, “Giant birefringence in multi-slotted silicon nanophotonic waveguides,” Opt. Express16(11), 8306–8316 (2008).
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S. Lee, S. C. Eom, J. S. Chang, C. Huh, G. Y. Sung, and J. H. Shin, “Label-free optical biosensing using a horizontal air-slot SiNx microdisk resonator,” Opt. Express18(20), 20638–20644 (2010).
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S. Y. Zhu, G. Q. Lo, and D. L. Kwong, “Low-loss amorphous silicon wire waveguide for integrated photonics: effect of fabrication process and the thermal stability,” Opt. Express18(24), 25283–25291 (2010).
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H. Fukuda, K. Yamada, T. Tsuchizawa, T. Watanabe, H. Shinojima, and S. Itabashi, “Silicon photonic circuit with polarization diversity,” Opt. Express16(7), 4872–4880 (2008).
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Other (3)

S. Nakamura, C. Tao, M. Ishizaka, M. Tokushima, Y. Urino, M. Sakauchi, I. Nishioka, and K. Fukuchi, “Ultra-small one-chip color-less multiplexer/ demultiplexer using silicon photonic circuit,” Proceedings of ECOC, 175–176(2008).

J. Zhang, H. Zhang, S. Chen, M. Yu, G. Q. Lo, and D. L. Kwong, “A polarization diversity circuit for silicon photonics,” Optical Fiber Communication Conference, JThA019 (2011).

RSoft, http://www.rsoftdesign.com/

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Figures (5)

Fig. 1
Fig. 1

(a) Schematic of a polarization splitter using horizontal slot waveguides. (b) Plot of effective index difference between TE and TM as a function of waveguide width. (c) Mode profile of TE. (d) Mode profile of TM showing confinement in slot region.

Fig. 2
Fig. 2

Simulation results of (a) TE propagation along the splitter and (b) TM propagation along the splitter; (c) Plot of effective index difference between TE and TM with slot thickness; (d) Plot of varying coupling lengths at different slot thickness

Fig. 3
Fig. 3

SEM image of the polarization splitter obtained. Inset shows a side view of horizontal slot waveguide.

Fig. 4
Fig. 4

Schematic of experimental setup. Measurements were done for TE and TM input separately.

Fig. 5
Fig. 5

(a) Extinction ratio at various coupling lengths when input wavelength is 1550 nm. ERThroughPort = 10log(TEThrough/TMThrough) and ERCrossPort = 10log(TMCross/TECross) (b) Broadband response at the through port for a coupling length of 15 μm from 1530 nm to 1600 nm. (c) Broadband response at the cross port of the same device in (b).

Equations (2)

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E R ThroughPort =10log( T E Through T M Through )
E R CrossPort =10log( T M Cross T E Cross )

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