Abstract

We propose a compact multichannel optical switch that uses holographic polarizing beam splitters and polarization switching devices and show its advantages and performance in an 8 × 8 nonblocking Banyan network.

© 1992 Optical Society of America

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References

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  1. T. Nakagami, T. Yamamoto, H. Ito, in Photonic Switching, Vol. 8 of OSA Proceedings Series, H. S. Hinton, J. W. Goodman, eds. (Optical Society of America, Washington, D.C., 1991), p. 67.
  2. R. K. Kostuk, M. Kato, Y. T. Huang, Appl. Opt. 29, 3848 (1990).
    [CrossRef] [PubMed]
  3. J. M. Wang, A. A. Sawchuk, in Digest of Optical Society of America Annual Meeting (Optical Society of America, Washington, D.C., 1991), paper TuFF2.

1990 (1)

Huang, Y. T.

Ito, H.

T. Nakagami, T. Yamamoto, H. Ito, in Photonic Switching, Vol. 8 of OSA Proceedings Series, H. S. Hinton, J. W. Goodman, eds. (Optical Society of America, Washington, D.C., 1991), p. 67.

Kato, M.

Kostuk, R. K.

Nakagami, T.

T. Nakagami, T. Yamamoto, H. Ito, in Photonic Switching, Vol. 8 of OSA Proceedings Series, H. S. Hinton, J. W. Goodman, eds. (Optical Society of America, Washington, D.C., 1991), p. 67.

Sawchuk, A. A.

J. M. Wang, A. A. Sawchuk, in Digest of Optical Society of America Annual Meeting (Optical Society of America, Washington, D.C., 1991), paper TuFF2.

Wang, J. M.

J. M. Wang, A. A. Sawchuk, in Digest of Optical Society of America Annual Meeting (Optical Society of America, Washington, D.C., 1991), paper TuFF2.

Yamamoto, T.

T. Nakagami, T. Yamamoto, H. Ito, in Photonic Switching, Vol. 8 of OSA Proceedings Series, H. S. Hinton, J. W. Goodman, eds. (Optical Society of America, Washington, D.C., 1991), p. 67.

Appl. Opt. (1)

Other (2)

J. M. Wang, A. A. Sawchuk, in Digest of Optical Society of America Annual Meeting (Optical Society of America, Washington, D.C., 1991), paper TuFF2.

T. Nakagami, T. Yamamoto, H. Ito, in Photonic Switching, Vol. 8 of OSA Proceedings Series, H. S. Hinton, J. W. Goodman, eds. (Optical Society of America, Washington, D.C., 1991), p. 67.

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Figures (6)

Fig. 1
Fig. 1

2 × 2 switching unit. The thick arrows represent grating vectors.

Fig. 2
Fig. 2

8 × 8 nonblocking Banyan network.

Fig. 3
Fig. 3

Equivalent circuit of the 8 × 8 nonblocking Banyan network.

Fig. 4
Fig. 4

Oblique view of the first stage. The half-wave plate is not necessarily used between the first and second stages.

Fig. 5
Fig. 5

Integrated structure of the four-stage Banyan network. The half-wave plate is optional between the first and second stages or the end of the 4th stage. The half-wave plate is necessary between the third and fourth stages and is not required between the second and third stages.

Fig. 6
Fig. 6

Patterns of holographic PBS layers. (a), (b) represent the first stage; (c), (d) represent the second and third stages; (e), (f) represent the fourth stage. A′, B′, and C′ represent patterns obtained by rotating A, B, and C around the XX′, YY′ and ZZ′ axes, respectively.

Equations (6)

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π Δ n d / ( λ cos θ ) = 3 π / 2 ,
π Δ n d cos θ / λ = π ,
Δ n d [ cos ( 48.2 π / 180 ) ] 1 / 2 = λ .
Δ x / t = tan [ sin - 1 ( ( n g / n ) sin { sin - 1 × [ sin θ ( 1 + Δ λ / λ ) ] } ) ] ,
t ( tan θ g ) / 2 0.24 t + 2 D ,
D 2 2.44 L λ ,

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