Abstract

We propose a new spatial walk-off polarizer that utilizes artificial anisotropic dielectrics. The polarizer is composed of two kinds of periodically laminated dielectric layer. We calculated the characteristics of the polarizer composed of periodically laminated a-Si/SiO2 layers and found that the split angle between the ordinary wave and the extraordinary wave in the polarizer is more than three times larger than that in well-known birefringent crystals, e.g., rutile and calcite. The polarizer holds promise for the miniaturization of polarization beam splitters and polarization-independent isolators.

© 1990 Optical Society of America

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References

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  1. T. Matsumoto, in Technical Digest of the Institute of Electronic Communication Engineers (IEICE, Tokyo, 1978), paper 0QE78-85; T. Matsumoto, U.S. patent4,239,329 (June25, 1980).
  2. M. Shirasaki, K. Asama, Appl. Opt. 21, 4296 (1982).
    [CrossRef] [PubMed]
  3. K. Chang, W. Sorin, IEEE Photon. Tech. Lett. 1, 68 (1989).
    [CrossRef]
  4. K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, Electron Lett. 25, 1335 (1989).
    [CrossRef]
  5. M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, 1975), pp. 705–708.
  6. M. Kitagawa, M. Tateda, Appl. Opt. 24, 3359 (1985).
    [CrossRef] [PubMed]
  7. A. Yariv, P. Yeh, J. Opt. Soc. Am. 67, 438 (1977).
    [CrossRef]
  8. D. Flanders, Appl. Phys. Lett. 42, 492 (1983).
    [CrossRef]
  9. E. D. Palik, Handbook of Optical Constants of Solids (Academic, Orlando, Fla., 1985), pp. 571–586.
  10. See, e.g., B. Rossi, Optics (Addison-Wesley, Reading, Mass., 1967), Chap. 6.
  11. K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, in National Convention Record (IEICE, Tokyo, 1989), paper C-221.

1989 (2)

K. Chang, W. Sorin, IEEE Photon. Tech. Lett. 1, 68 (1989).
[CrossRef]

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, Electron Lett. 25, 1335 (1989).
[CrossRef]

1985 (1)

1983 (1)

D. Flanders, Appl. Phys. Lett. 42, 492 (1983).
[CrossRef]

1982 (1)

1977 (1)

Aizawa, Y.

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, Electron Lett. 25, 1335 (1989).
[CrossRef]

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, in National Convention Record (IEICE, Tokyo, 1989), paper C-221.

Asama, K.

Born, M.

M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, 1975), pp. 705–708.

Chang, K.

K. Chang, W. Sorin, IEEE Photon. Tech. Lett. 1, 68 (1989).
[CrossRef]

Flanders, D.

D. Flanders, Appl. Phys. Lett. 42, 492 (1983).
[CrossRef]

Kawakami, S.

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, Electron Lett. 25, 1335 (1989).
[CrossRef]

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, in National Convention Record (IEICE, Tokyo, 1989), paper C-221.

Kitagawa, M.

Matsumoto, T.

T. Matsumoto, in Technical Digest of the Institute of Electronic Communication Engineers (IEICE, Tokyo, 1978), paper 0QE78-85; T. Matsumoto, U.S. patent4,239,329 (June25, 1980).

Palik, E. D.

E. D. Palik, Handbook of Optical Constants of Solids (Academic, Orlando, Fla., 1985), pp. 571–586.

Rossi, B.

See, e.g., B. Rossi, Optics (Addison-Wesley, Reading, Mass., 1967), Chap. 6.

Shiraishi, K.

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, Electron Lett. 25, 1335 (1989).
[CrossRef]

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, in National Convention Record (IEICE, Tokyo, 1989), paper C-221.

Shirasaki, M.

Sorin, W.

K. Chang, W. Sorin, IEEE Photon. Tech. Lett. 1, 68 (1989).
[CrossRef]

Tateda, M.

Wolf, E.

M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, 1975), pp. 705–708.

Yanagi, T.

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, Electron Lett. 25, 1335 (1989).
[CrossRef]

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, in National Convention Record (IEICE, Tokyo, 1989), paper C-221.

Yariv, A.

Yeh, P.

Appl. Opt. (2)

Appl. Phys. Lett. (1)

D. Flanders, Appl. Phys. Lett. 42, 492 (1983).
[CrossRef]

Electron Lett. (1)

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, Electron Lett. 25, 1335 (1989).
[CrossRef]

IEEE Photon. Tech. Lett. (1)

K. Chang, W. Sorin, IEEE Photon. Tech. Lett. 1, 68 (1989).
[CrossRef]

J. Opt. Soc. Am. (1)

Other (5)

M. Born, E. Wolf, Principles of Optics (Pergamon, Oxford, 1975), pp. 705–708.

E. D. Palik, Handbook of Optical Constants of Solids (Academic, Orlando, Fla., 1985), pp. 571–586.

See, e.g., B. Rossi, Optics (Addison-Wesley, Reading, Mass., 1967), Chap. 6.

K. Shiraishi, Y. Aizawa, T. Yanagi, S. Kawakami, in National Convention Record (IEICE, Tokyo, 1989), paper C-221.

T. Matsumoto, in Technical Digest of the Institute of Electronic Communication Engineers (IEICE, Tokyo, 1978), paper 0QE78-85; T. Matsumoto, U.S. patent4,239,329 (June25, 1980).

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Figures (5)

Fig. 1
Fig. 1

Diagram of the polarization-independent isolator and its operation.1,3

Fig. 2
Fig. 2

Structure of the proposed SWP. The periodicity p is assumed to be much smaller than the wavelength.

Fig. 3
Fig. 3

Optical anisotropy of the artificial birefringent medium composed of a-Si/SiO2 multilayers.

Fig. 4
Fig. 4

Beam split angles in the a-Si/SiO2 multilayer medium, rutile, and calcite as a function of the slant angle. The split angle in the a-Si/air multilayer structure is shown by the dotted curve.

Fig. 5
Fig. 5

Calculated diffraction loss versus the optical thickness of an embedded device. The proposed SWP is promising for the realization of fiber-embedded polarization-independent isolators with low-loss characteristics (0.17 dB).

Equations (5)

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n = [ n 1 2 q + n 2 2 ( 1 q ) ] 1 / 2 ,
n = [ ( 1 / n 1 2 ) q + ( 1 / n 2 2 ) ( 1 q ) ] 1 / 2 .
tan ϕ = ( n 2 n 2 ) tan θ n 2 + n 2 tan 2 θ .
θ = tan 1 ( n / n ) .
tan ϕ = ( n 2 n 2 ) / 2 n n .

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