Abstract

A novel polarization splitter on an InP substrate utilizing an MMI coupler loaded with a dielectric and gold layer pad is proposed and simulated. A tilted joint is used for adjusting the phases of TE and TM modes. The MMI section is less than 540 μm. Simulations show that the device has a polarization extinction ratio over 23 dB and an insertion loss below 0.7 dB over the entire C-band for both TE and TM polarizations. The device design was optimized to maximize the wavelength range and tolerance for manufacturing variations.

© 2012 OSA

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  1. 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]
  2. 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).
    [CrossRef] [PubMed]
  3. W. Bogaerts, D. Taillaert, P. Dumon, D. Van Thourhout, R. Baets, and E. Pluk, “A polarization-diversity wavelength duplexer circuit in silicon-on-insulator photonic wires,” Opt. Express15(4), 1567–1578 (2007).
    [CrossRef] [PubMed]
  4. R. Nagarajan, J. Rahn, M. Kato, J. Pleumeekers, D. Lambert, V. Lal, H. S. Tsai, A. Nilsson, A. Dentai, M. Kuntz, R. Malendevich, J. Tang, J. Zhang, T. Butrie, M. Raburn, B. Little, W. Chen, G. Goldfarb, V. Dominic, B. Taylor, M. Reffle, F. Kish, and D. Welch, “10 Channel, 45.6 Gb/s per channel, polarization-multiplexed DQPSK, InP receiver photonic integrated circuit,” J. Lightwave Technol.29(4), 386–395 (2011).
    [CrossRef]
  5. L. M. Augustin, R. Hanfoug, J. J. G. M. van der Tol, W. J. M. de Laat, and M. K. Smit, “A compact integrated polarization splitter/converter in InGaAsP-InP,” IEEE Photon. Technol. Lett.19(17), 1286–1288 (2007).
    [CrossRef]
  6. W. Yuan, K. Kojima, B. Wang, T. Koike-Akino, K. Parsons, S. Nishikawa, and E. Yagyu, “Mode-evolution-based polarization rotator-splitter design via simple fabrication process,” Opt. Express20(9), 10163–10169 (2012).
    [CrossRef] [PubMed]
  7. L. B. Soldano and E. C. M. Pennings, “Optical multi-mode interference devices based on self-imaging: principles and applications,” J. Lightwave Technol. 13, 615–627 (1005).
  8. L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
    [CrossRef]
  9. B. M. A. Rahman, N. Somasiri, C. Themistos, and K. T. V. Grattan, “Design of optical polarization splitters in a single-section deeply etched MMI waveguide,” Appl. Phys. B73(5), 613–618 (2001).
    [CrossRef]
  10. J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
    [CrossRef]
  11. A. Katigbak, J. F. Strother, and J. Lin, “Compact silicon slot waveguide polarization splitter,” Opt. Eng.48(8), 080503 (2009).
    [CrossRef]
  12. S. C. Rashleigh, “Four-layer metal-clad thin film optical waveguides,” Opt. Quantum Electron.8(1), 49–60 (1976).
    [CrossRef]
  13. Q. Lai, M. Bachmann, W. Hunziker, P. A. Besse, and H. Melchior, “Arbitrary ratio power splitters using angled silica on silicon multimode interference couplers,” Electron. Lett.32(17), 1576–1577 (1996).
    [CrossRef]
  14. D. F. G. Gallagher and T. P. Felici, “Eigenmode expansion methods for simulation of optical propagation in photonics: pros and cons,” Proc. SPIE4987, 69–82 (2003).
    [CrossRef]
  15. H. Goto, K. Shibahara, and S. Yokoyama, “Atomic layer controlled deposition of silicon nitride with self-limiting mechanism,” Appl. Phys. Lett.68(23), 3257–3259 (1996).
    [CrossRef]

2012

2011

2009

A. Katigbak, J. F. Strother, and J. Lin, “Compact silicon slot waveguide polarization splitter,” Opt. Eng.48(8), 080503 (2009).
[CrossRef]

2008

2007

W. Bogaerts, D. Taillaert, P. Dumon, D. Van Thourhout, R. Baets, and E. Pluk, “A polarization-diversity wavelength duplexer circuit in silicon-on-insulator photonic wires,” Opt. Express15(4), 1567–1578 (2007).
[CrossRef] [PubMed]

L. M. Augustin, R. Hanfoug, J. J. G. M. van der Tol, W. J. M. de Laat, and M. K. Smit, “A compact integrated polarization splitter/converter in InGaAsP-InP,” IEEE Photon. Technol. Lett.19(17), 1286–1288 (2007).
[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]

2003

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

D. F. G. Gallagher and T. P. Felici, “Eigenmode expansion methods for simulation of optical propagation in photonics: pros and cons,” Proc. SPIE4987, 69–82 (2003).
[CrossRef]

2001

B. M. A. Rahman, N. Somasiri, C. Themistos, and K. T. V. Grattan, “Design of optical polarization splitters in a single-section deeply etched MMI waveguide,” Appl. Phys. B73(5), 613–618 (2001).
[CrossRef]

1996

H. Goto, K. Shibahara, and S. Yokoyama, “Atomic layer controlled deposition of silicon nitride with self-limiting mechanism,” Appl. Phys. Lett.68(23), 3257–3259 (1996).
[CrossRef]

Q. Lai, M. Bachmann, W. Hunziker, P. A. Besse, and H. Melchior, “Arbitrary ratio power splitters using angled silica on silicon multimode interference couplers,” Electron. Lett.32(17), 1576–1577 (1996).
[CrossRef]

1994

L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
[CrossRef]

1976

S. C. Rashleigh, “Four-layer metal-clad thin film optical waveguides,” Opt. Quantum Electron.8(1), 49–60 (1976).
[CrossRef]

Augustin, L. M.

L. M. Augustin, R. Hanfoug, J. J. G. M. van der Tol, W. J. M. de Laat, and M. K. Smit, “A compact integrated polarization splitter/converter in InGaAsP-InP,” IEEE Photon. Technol. Lett.19(17), 1286–1288 (2007).
[CrossRef]

Bachmann, M.

Q. Lai, M. Bachmann, W. Hunziker, P. A. Besse, and H. Melchior, “Arbitrary ratio power splitters using angled silica on silicon multimode interference couplers,” Electron. Lett.32(17), 1576–1577 (1996).
[CrossRef]

Baets, R.

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]

Beom-Hoan, O.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Besse, P. A.

Q. Lai, M. Bachmann, W. Hunziker, P. A. Besse, and H. Melchior, “Arbitrary ratio power splitters using angled silica on silicon multimode interference couplers,” Electron. Lett.32(17), 1576–1577 (1996).
[CrossRef]

Bogaerts, W.

Butrie, T.

Chen, W.

de Laat, W. J. M.

L. M. Augustin, R. Hanfoug, J. J. G. M. van der Tol, W. J. M. de Laat, and M. K. Smit, “A compact integrated polarization splitter/converter in InGaAsP-InP,” IEEE Photon. Technol. Lett.19(17), 1286–1288 (2007).
[CrossRef]

de Vreede, A. I.

L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
[CrossRef]

Dentai, A.

Dominic, V.

Dumon, P.

Felici, T. P.

D. F. G. Gallagher and T. P. Felici, “Eigenmode expansion methods for simulation of optical propagation in photonics: pros and cons,” Proc. SPIE4987, 69–82 (2003).
[CrossRef]

Fukuda, H.

Gallagher, D. F. G.

D. F. G. Gallagher and T. P. Felici, “Eigenmode expansion methods for simulation of optical propagation in photonics: pros and cons,” Proc. SPIE4987, 69–82 (2003).
[CrossRef]

Goldfarb, G.

Goto, H.

H. Goto, K. Shibahara, and S. Yokoyama, “Atomic layer controlled deposition of silicon nitride with self-limiting mechanism,” Appl. Phys. Lett.68(23), 3257–3259 (1996).
[CrossRef]

Grattan, K. T. V.

B. M. A. Rahman, N. Somasiri, C. Themistos, and K. T. V. Grattan, “Design of optical polarization splitters in a single-section deeply etched MMI waveguide,” Appl. Phys. B73(5), 613–618 (2001).
[CrossRef]

Green, F. H.

L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
[CrossRef]

Hanfoug, R.

L. M. Augustin, R. Hanfoug, J. J. G. M. van der Tol, W. J. M. de Laat, and M. K. Smit, “A compact integrated polarization splitter/converter in InGaAsP-InP,” IEEE Photon. Technol. Lett.19(17), 1286–1288 (2007).
[CrossRef]

Hong, J. M.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Hunziker, W.

Q. Lai, M. Bachmann, W. Hunziker, P. A. Besse, and H. Melchior, “Arbitrary ratio power splitters using angled silica on silicon multimode interference couplers,” Electron. Lett.32(17), 1576–1577 (1996).
[CrossRef]

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]

Itabashi, S.

Jeong, J. W.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

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]

Katigbak, A.

A. Katigbak, J. F. Strother, and J. Lin, “Compact silicon slot waveguide polarization splitter,” Opt. Eng.48(8), 080503 (2009).
[CrossRef]

Kato, M.

Kim, S.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Kish, F.

Koike-Akino, T.

Kojima, K.

Kuntz, M.

Lai, Q.

Q. Lai, M. Bachmann, W. Hunziker, P. A. Besse, and H. Melchior, “Arbitrary ratio power splitters using angled silica on silicon multimode interference couplers,” Electron. Lett.32(17), 1576–1577 (1996).
[CrossRef]

Lal, V.

Lambert, D.

Lee, E. H.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Lee, S. G.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Lin, J.

A. Katigbak, J. F. Strother, and J. Lin, “Compact silicon slot waveguide polarization splitter,” Opt. Eng.48(8), 080503 (2009).
[CrossRef]

Little, B.

Malendevich, R.

Melchior, H.

Q. Lai, M. Bachmann, W. Hunziker, P. A. Besse, and H. Melchior, “Arbitrary ratio power splitters using angled silica on silicon multimode interference couplers,” Electron. Lett.32(17), 1576–1577 (1996).
[CrossRef]

Metaal, E. G.

L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
[CrossRef]

Nagarajan, R.

Nilsson, A.

Nishikawa, S.

Park, S. G.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Park, S. R.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Parsons, K.

Pleumeekers, J.

Pluk, E.

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]

Raburn, M.

Rahman, B. M. A.

B. M. A. Rahman, N. Somasiri, C. Themistos, and K. T. V. Grattan, “Design of optical polarization splitters in a single-section deeply etched MMI waveguide,” Appl. Phys. B73(5), 613–618 (2001).
[CrossRef]

Rahn, J.

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]

Rashleigh, S. C.

S. C. Rashleigh, “Four-layer metal-clad thin film optical waveguides,” Opt. Quantum Electron.8(1), 49–60 (1976).
[CrossRef]

Reffle, M.

Ryu, H. H.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Shibahara, K.

H. Goto, K. Shibahara, and S. Yokoyama, “Atomic layer controlled deposition of silicon nitride with self-limiting mechanism,” Appl. Phys. Lett.68(23), 3257–3259 (1996).
[CrossRef]

Shinojima, H.

Smit, M. K.

L. M. Augustin, R. Hanfoug, J. J. G. M. van der Tol, W. J. M. de Laat, and M. K. Smit, “A compact integrated polarization splitter/converter in InGaAsP-InP,” IEEE Photon. Technol. Lett.19(17), 1286–1288 (2007).
[CrossRef]

L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
[CrossRef]

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]

Soldano, L. B.

L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
[CrossRef]

Somasiri, N.

B. M. A. Rahman, N. Somasiri, C. Themistos, and K. T. V. Grattan, “Design of optical polarization splitters in a single-section deeply etched MMI waveguide,” Appl. Phys. B73(5), 613–618 (2001).
[CrossRef]

Strother, J. F.

A. Katigbak, J. F. Strother, and J. Lin, “Compact silicon slot waveguide polarization splitter,” Opt. Eng.48(8), 080503 (2009).
[CrossRef]

Taillaert, D.

Tang, J.

Taylor, B.

Themistos, C.

B. M. A. Rahman, N. Somasiri, C. Themistos, and K. T. V. Grattan, “Design of optical polarization splitters in a single-section deeply etched MMI waveguide,” Appl. Phys. B73(5), 613–618 (2001).
[CrossRef]

Tsai, H. S.

Tsuchizawa, T.

van der Tol, J. J. G. M.

L. M. Augustin, R. Hanfoug, J. J. G. M. van der Tol, W. J. M. de Laat, and M. K. Smit, “A compact integrated polarization splitter/converter in InGaAsP-InP,” IEEE Photon. Technol. Lett.19(17), 1286–1288 (2007).
[CrossRef]

Van Thourhout, D.

Verbeek, B. H.

L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
[CrossRef]

Wang, B.

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]

Welch, D.

Woo, D.

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

Yagyu, E.

Yamada, K.

Yokoyama, S.

H. Goto, K. Shibahara, and S. Yokoyama, “Atomic layer controlled deposition of silicon nitride with self-limiting mechanism,” Appl. Phys. Lett.68(23), 3257–3259 (1996).
[CrossRef]

Yuan, W.

Zhang, J.

Appl. Phys. B

B. M. A. Rahman, N. Somasiri, C. Themistos, and K. T. V. Grattan, “Design of optical polarization splitters in a single-section deeply etched MMI waveguide,” Appl. Phys. B73(5), 613–618 (2001).
[CrossRef]

Appl. Phys. Lett.

H. Goto, K. Shibahara, and S. Yokoyama, “Atomic layer controlled deposition of silicon nitride with self-limiting mechanism,” Appl. Phys. Lett.68(23), 3257–3259 (1996).
[CrossRef]

Electron. Lett.

Q. Lai, M. Bachmann, W. Hunziker, P. A. Besse, and H. Melchior, “Arbitrary ratio power splitters using angled silica on silicon multimode interference couplers,” Electron. Lett.32(17), 1576–1577 (1996).
[CrossRef]

IEEE Photon. Technol. Lett.

L. B. Soldano, A. I. de Vreede, M. K. Smit, B. H. Verbeek, E. G. Metaal, and F. H. Green, “Mach-Zehnder interferometer polarization splitter in InGaAsP/InP,” IEEE Photon. Technol. Lett.6(3), 402–405 (1994).
[CrossRef]

J. M. Hong, H. H. Ryu, S. R. Park, J. W. Jeong, S. G. Lee, E. H. Lee, S. G. Park, D. Woo, S. Kim, and O. Beom-Hoan, “Design and fabrication of a significantly shortened multimode interference coupler for polarization splitter application,” IEEE Photon. Technol. Lett.15(1), 72–74 (2003).
[CrossRef]

L. M. Augustin, R. Hanfoug, J. J. G. M. van der Tol, W. J. M. de Laat, and M. K. Smit, “A compact integrated polarization splitter/converter in InGaAsP-InP,” IEEE Photon. Technol. Lett.19(17), 1286–1288 (2007).
[CrossRef]

J. Lightwave Technol.

Nat. Photonics

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. Eng.

A. Katigbak, J. F. Strother, and J. Lin, “Compact silicon slot waveguide polarization splitter,” Opt. Eng.48(8), 080503 (2009).
[CrossRef]

Opt. Express

Opt. Quantum Electron.

S. C. Rashleigh, “Four-layer metal-clad thin film optical waveguides,” Opt. Quantum Electron.8(1), 49–60 (1976).
[CrossRef]

Proc. SPIE

D. F. G. Gallagher and T. P. Felici, “Eigenmode expansion methods for simulation of optical propagation in photonics: pros and cons,” Proc. SPIE4987, 69–82 (2003).
[CrossRef]

Other

L. B. Soldano and E. C. M. Pennings, “Optical multi-mode interference devices based on self-imaging: principles and applications,” J. Lightwave Technol. 13, 615–627 (1005).

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Figures (6)

Fig. 1
Fig. 1

Functional block diagram of a polarization splitter based on MMI couplers. The arrows indicate the phases of the electric field.

Fig. 2
Fig. 2

2D simulation of Δneff , i.e, effective index difference with and without the gold layer, as a function of the SiNx layer thickness

Fig. 3
Fig. 3

(a) The schematic top view of the proposed MMI-based polarization splitter and (b) the cross section view of the phase shift section (S2 and S3) with metal-dielectric cladding layer.

Fig. 4
Fig. 4

The electric field intensity in the MMI-based polarization splitter showing the wave propagation for (a) TM mode and (b) TE mode inputs.

Fig. 5
Fig. 5

Simulation result on (a) PER and (b) Insertion loss for TE and TM modes as a function of wavelength.

Fig. 6
Fig. 6

Simulation result on (a) PER and (b) Insertion loss for TE and TM modes as a function of SiNx layer thickness error.

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