Abstract

The new compact polarization rotator in anisotropic graded index Ti:LiNbO3 channel waveguide is proposed and investigated by 3D beam propagation method (BPM). Device is based on a channel optical waveguide directed at small angle (about 5 degrees) with respect to Z-axis on Y-cut lithium niobate substrate. The polarization conversion from quasi-TE to quasi-TM guided modes (and backwards) along 8 mm long waveguide with an index contrast 0.015, has been numerically demonstrated. Device is intended for polarization diversity of integrated optic elements based on LiNbO3 structures.

© 2008 Optical Society of America

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References

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  1. Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
    [Crossref]
  2. W. Lui, T. Hirono, K. Yokoyama, and W. Huang, “Polarization rotation in semiconductor bending waveguides: A coupled-mode theory formulation,” J. Lightwave Technol. 16, 929–936 (1998).
    [Crossref]
  3. J. Z. Huang, R. Scarmozzino, G. Nagy, M. J. Steel, and R. M. Osgood Jr, “Realization of a compact and single-mode optical polarization converter,” IEEE Photon. Technol. Lett. 12, 317–319 (2000).
    [Crossref]
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    [Crossref] [PubMed]
  5. J. Ctyroky and M. Cada, “Generalized WKB method for the analysis of light propagation in inhomogeneous anisotropic optical waveguides,” IEEE J. Quantum Electron. 17, 1064–1070 (1981).
    [Crossref]
  6. E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).
  7. E. A. Kolosovsky, D. V. Petrov, A. V. Tsarev, and I. B. Yakovkin, “An exact method for analyzing light propagation in anisotropic inhomogeneous optical waveguide,” Opt. Commun. 43, 21–25 (1982).
    [Crossref]
  8. A. Tsarev, “The new design and numerical simulation by 3D BPM of new compact polarisation rotator in anisotropic LiNbO3 graded index waveguide,” Proc. 13th Eur. Conf. on Int. Optics and Tech. Exhibition, Copenhagen, Denmark, ThG27 (2007).
  9. BeamPROP from RSoft Design Group, Inc, http://www.rsoftdesign.com.
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    [Crossref]

2005 (1)

2000 (1)

J. Z. Huang, R. Scarmozzino, G. Nagy, M. J. Steel, and R. M. Osgood Jr, “Realization of a compact and single-mode optical polarization converter,” IEEE Photon. Technol. Lett. 12, 317–319 (2000).
[Crossref]

1998 (1)

1997 (1)

Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
[Crossref]

1991 (1)

1982 (1)

E. A. Kolosovsky, D. V. Petrov, A. V. Tsarev, and I. B. Yakovkin, “An exact method for analyzing light propagation in anisotropic inhomogeneous optical waveguide,” Opt. Commun. 43, 21–25 (1982).
[Crossref]

1981 (1)

J. Ctyroky and M. Cada, “Generalized WKB method for the analysis of light propagation in inhomogeneous anisotropic optical waveguides,” IEEE J. Quantum Electron. 17, 1064–1070 (1981).
[Crossref]

1978 (1)

E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).

Ando, S.

Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
[Crossref]

Bersiner, L.

Cada, M.

J. Ctyroky and M. Cada, “Generalized WKB method for the analysis of light propagation in inhomogeneous anisotropic optical waveguides,” IEEE J. Quantum Electron. 17, 1064–1070 (1981).
[Crossref]

Chernykh, V. A.

E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).

Ctyroky, J.

J. Ctyroky and M. Cada, “Generalized WKB method for the analysis of light propagation in inhomogeneous anisotropic optical waveguides,” IEEE J. Quantum Electron. 17, 1064–1070 (1981).
[Crossref]

Haus, H.

Hempelmann, U.

Himeno, A.

Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
[Crossref]

Hirono, T.

Huang, J. Z.

J. Z. Huang, R. Scarmozzino, G. Nagy, M. J. Steel, and R. M. Osgood Jr, “Realization of a compact and single-mode optical polarization converter,” IEEE Photon. Technol. Lett. 12, 317–319 (2000).
[Crossref]

Huang, W.

Inoue, Y.

Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
[Crossref]

Kawachi, M.

Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
[Crossref]

Kiselev, V. A.

E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).

Kolosovsky, E. A.

E. A. Kolosovsky, D. V. Petrov, A. V. Tsarev, and I. B. Yakovkin, “An exact method for analyzing light propagation in anisotropic inhomogeneous optical waveguide,” Opt. Commun. 43, 21–25 (1982).
[Crossref]

Lui, W.

Nagy, G.

J. Z. Huang, R. Scarmozzino, G. Nagy, M. J. Steel, and R. M. Osgood Jr, “Realization of a compact and single-mode optical polarization converter,” IEEE Photon. Technol. Lett. 12, 317–319 (2000).
[Crossref]

Osgood Jr, R. M.

J. Z. Huang, R. Scarmozzino, G. Nagy, M. J. Steel, and R. M. Osgood Jr, “Realization of a compact and single-mode optical polarization converter,” IEEE Photon. Technol. Lett. 12, 317–319 (2000).
[Crossref]

Pelekhaty, V. M.

E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).

Petrov, D. V.

E. A. Kolosovsky, D. V. Petrov, A. V. Tsarev, and I. B. Yakovkin, “An exact method for analyzing light propagation in anisotropic inhomogeneous optical waveguide,” Opt. Commun. 43, 21–25 (1982).
[Crossref]

Prokhorov, A. M.

E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).

Sawada, T.

Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
[Crossref]

Scarmozzino, R.

J. Z. Huang, R. Scarmozzino, G. Nagy, M. J. Steel, and R. M. Osgood Jr, “Realization of a compact and single-mode optical polarization converter,” IEEE Photon. Technol. Lett. 12, 317–319 (2000).
[Crossref]

Sherbakov, E. A.

E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).

Steel, M. J.

J. Z. Huang, R. Scarmozzino, G. Nagy, M. J. Steel, and R. M. Osgood Jr, “Realization of a compact and single-mode optical polarization converter,” IEEE Photon. Technol. Lett. 12, 317–319 (2000).
[Crossref]

Strake, E.

Takahashi, H.

Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
[Crossref]

Tsarev, A.

A. Tsarev, “The new design and numerical simulation by 3D BPM of new compact polarisation rotator in anisotropic LiNbO3 graded index waveguide,” Proc. 13th Eur. Conf. on Int. Optics and Tech. Exhibition, Copenhagen, Denmark, ThG27 (2007).

Tsarev, A. V.

E. A. Kolosovsky, D. V. Petrov, A. V. Tsarev, and I. B. Yakovkin, “An exact method for analyzing light propagation in anisotropic inhomogeneous optical waveguide,” Opt. Commun. 43, 21–25 (1982).
[Crossref]

Watts, M.

Yakovkin, I. B.

E. A. Kolosovsky, D. V. Petrov, A. V. Tsarev, and I. B. Yakovkin, “An exact method for analyzing light propagation in anisotropic inhomogeneous optical waveguide,” Opt. Commun. 43, 21–25 (1982).
[Crossref]

Yokoyama, K.

Zolotov, E. M.

E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).

IEEE J. Quantum Electron. (1)

J. Ctyroky and M. Cada, “Generalized WKB method for the analysis of light propagation in inhomogeneous anisotropic optical waveguides,” IEEE J. Quantum Electron. 17, 1064–1070 (1981).
[Crossref]

IEEE Photon. Technol. Lett. (1)

J. Z. Huang, R. Scarmozzino, G. Nagy, M. J. Steel, and R. M. Osgood Jr, “Realization of a compact and single-mode optical polarization converter,” IEEE Photon. Technol. Lett. 12, 317–319 (2000).
[Crossref]

J. Lightwave Technol. (2)

Y. Inoue, H. Takahashi, S. Ando, T. Sawada, A. Himeno, and M. Kawachi, “Elimination of polarization sensitivity in silica-based wavelength division multiplexer using a polyimide half waveplate,” J. Lightwave Technol. 15, 1947–1957 (1997).
[Crossref]

W. Lui, T. Hirono, K. Yokoyama, and W. Huang, “Polarization rotation in semiconductor bending waveguides: A coupled-mode theory formulation,” J. Lightwave Technol. 16, 929–936 (1998).
[Crossref]

J. Opt. Soc. Am. B (1)

Opt. Commun. (1)

E. A. Kolosovsky, D. V. Petrov, A. V. Tsarev, and I. B. Yakovkin, “An exact method for analyzing light propagation in anisotropic inhomogeneous optical waveguide,” Opt. Commun. 43, 21–25 (1982).
[Crossref]

Opt. Lett. (1)

Quantum Electron. (Rus) (1)

E. M. Zolotov, V. A. Kiselev, V. M. Pelekhaty, A. M. Prokhorov, V. A. Chernykh, and E. A. Sherbakov, “A study of anisotropic optical diffuse waveguides in LiNbO3,” Quantum Electron. (Rus) 5, 1379–1381 (1978).

Other (2)

A. Tsarev, “The new design and numerical simulation by 3D BPM of new compact polarisation rotator in anisotropic LiNbO3 graded index waveguide,” Proc. 13th Eur. Conf. on Int. Optics and Tech. Exhibition, Copenhagen, Denmark, ThG27 (2007).

BeamPROP from RSoft Design Group, Inc, http://www.rsoftdesign.com.

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Figures (6)

Fig. 1.
Fig. 1.

Simulated distribution of refractive index in channel waveguide (w=13 µm, h=2.4 µm, Δn=0.015).

Fig. 2.
Fig. 2.

Simulated distribution of optical field of guided modes in diffused waveguide of Fig. 1. (a) quasi-TE mode, (b) quasi-TM mode. (θ=0).

Fig. 3.
Fig. 3.

3D BPM simulation of polarization conversion in anisotropic channel waveguide directed at angle θ=5.27°. Input polarizations: quasi-TE.

Fig. 4.
Fig. 4.

Normalized results of 3D BPM simulation of power transmittance T in anisotropic channel waveguide directed at angle θ=5.27°. Input polarizations: (a) quasi-TE; (b) quasi-TM.

Fig. 5.
Fig. 5.

3D BPM simulation of polarization conversion from quasi-TE to quasi-TM at different angle θ relative to Z -axis in Y -cut Ti:LiNbO3. L0 =7.8 mm. (a) quasi-TE; (b) quasi-TM.

Fig. 6.
Fig. 6.

3D BPM simulation of polarization conversion from quasi-TM to quasi-TE modes at different optical wavelengths in an anisotropic channel waveguide directed at angle θ=5.27°. L0 =7.8 mm. (a) quasi-TE; (b) quasi-TM.

Equations (3)

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n ( x , y ) = n 0 + Δ n · g ( x ) · f ( y )
g ( x ) = 1 2 { erf [ ( w 2 + x ) h x ] + erf [ ( w 2 x ) h x ] }
f ( y ) = exp [ ( y h y ) 2 ]

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