Abstract

A two-wavelength multi–demultiplexer for practical use is discussed. An internal-filter microoptic-type multi– multi–demultiplexers have been experimentally fabricated based on the specified branching characteristics, i.e., wide pass-bandwidth, low passband transmission loss, and high cross-talk attenuation. All demultiplexer is attractive for practical use due to its compactness and coaxial structure. Sixteen multi–demultiplexers satisfy the specified branching characteristics in initial performance, and stability tests confirm that this type of multi–demultiplexer has stable performance.

© 1983 Optical Society of America

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References

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  1. T. Miki, H. Ishio, IEEE Trans. Commun. COM-26, 1082 (1978).
    [CrossRef]
  2. T. Kanada, Y. Okano, K. Aoyama, T. Kitami, IEEE Trans. Commun.COM-31 (1983), to be published.
  3. K. Nosu, H. Ishio, Trans. IECE Jpn. 62-B, 1030 (1979).
  4. M. Shikada, K. Kobayashi, M. Seki, A. Ueki, presented at the Technical Group, IECE Japan, OQE78-46, (21 July 1978).
  5. K. I. Aoyama, J. I. Minowa, Appl. Opt. 18, 1253 (1979).
    [CrossRef] [PubMed]
  6. K. Kobayashi, M. Seki, IEEE J. Quantum Electron. QE-16, 11 (1980).
    [CrossRef]
  7. R. Watanabe, K. Nosu, Appl. Opt. 19, 3588 (1980).
    [CrossRef] [PubMed]
  8. J. Minowa, Y. Fujii, IEEE J. Lightwave Technol. 1, 116 (1983).
    [CrossRef]

1983 (1)

J. Minowa, Y. Fujii, IEEE J. Lightwave Technol. 1, 116 (1983).
[CrossRef]

1980 (2)

K. Kobayashi, M. Seki, IEEE J. Quantum Electron. QE-16, 11 (1980).
[CrossRef]

R. Watanabe, K. Nosu, Appl. Opt. 19, 3588 (1980).
[CrossRef] [PubMed]

1979 (2)

K. I. Aoyama, J. I. Minowa, Appl. Opt. 18, 1253 (1979).
[CrossRef] [PubMed]

K. Nosu, H. Ishio, Trans. IECE Jpn. 62-B, 1030 (1979).

1978 (1)

T. Miki, H. Ishio, IEEE Trans. Commun. COM-26, 1082 (1978).
[CrossRef]

Aoyama, K.

T. Kanada, Y. Okano, K. Aoyama, T. Kitami, IEEE Trans. Commun.COM-31 (1983), to be published.

Aoyama, K. I.

Fujii, Y.

J. Minowa, Y. Fujii, IEEE J. Lightwave Technol. 1, 116 (1983).
[CrossRef]

Ishio, H.

K. Nosu, H. Ishio, Trans. IECE Jpn. 62-B, 1030 (1979).

T. Miki, H. Ishio, IEEE Trans. Commun. COM-26, 1082 (1978).
[CrossRef]

Kanada, T.

T. Kanada, Y. Okano, K. Aoyama, T. Kitami, IEEE Trans. Commun.COM-31 (1983), to be published.

Kitami, T.

T. Kanada, Y. Okano, K. Aoyama, T. Kitami, IEEE Trans. Commun.COM-31 (1983), to be published.

Kobayashi, K.

K. Kobayashi, M. Seki, IEEE J. Quantum Electron. QE-16, 11 (1980).
[CrossRef]

M. Shikada, K. Kobayashi, M. Seki, A. Ueki, presented at the Technical Group, IECE Japan, OQE78-46, (21 July 1978).

Miki, T.

T. Miki, H. Ishio, IEEE Trans. Commun. COM-26, 1082 (1978).
[CrossRef]

Minowa, J.

J. Minowa, Y. Fujii, IEEE J. Lightwave Technol. 1, 116 (1983).
[CrossRef]

Minowa, J. I.

Nosu, K.

R. Watanabe, K. Nosu, Appl. Opt. 19, 3588 (1980).
[CrossRef] [PubMed]

K. Nosu, H. Ishio, Trans. IECE Jpn. 62-B, 1030 (1979).

Okano, Y.

T. Kanada, Y. Okano, K. Aoyama, T. Kitami, IEEE Trans. Commun.COM-31 (1983), to be published.

Seki, M.

K. Kobayashi, M. Seki, IEEE J. Quantum Electron. QE-16, 11 (1980).
[CrossRef]

M. Shikada, K. Kobayashi, M. Seki, A. Ueki, presented at the Technical Group, IECE Japan, OQE78-46, (21 July 1978).

Shikada, M.

M. Shikada, K. Kobayashi, M. Seki, A. Ueki, presented at the Technical Group, IECE Japan, OQE78-46, (21 July 1978).

Ueki, A.

M. Shikada, K. Kobayashi, M. Seki, A. Ueki, presented at the Technical Group, IECE Japan, OQE78-46, (21 July 1978).

Watanabe, R.

Appl. Opt. (2)

IEEE J. Lightwave Technol. (1)

J. Minowa, Y. Fujii, IEEE J. Lightwave Technol. 1, 116 (1983).
[CrossRef]

IEEE J. Quantum Electron. (1)

K. Kobayashi, M. Seki, IEEE J. Quantum Electron. QE-16, 11 (1980).
[CrossRef]

IEEE Trans. Commun. (1)

T. Miki, H. Ishio, IEEE Trans. Commun. COM-26, 1082 (1978).
[CrossRef]

Trans. IECE Jpn. (1)

K. Nosu, H. Ishio, Trans. IECE Jpn. 62-B, 1030 (1979).

Other (2)

M. Shikada, K. Kobayashi, M. Seki, A. Ueki, presented at the Technical Group, IECE Japan, OQE78-46, (21 July 1978).

T. Kanada, Y. Okano, K. Aoyama, T. Kitami, IEEE Trans. Commun.COM-31 (1983), to be published.

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Figures (12)

Fig. 1
Fig. 1

Transfer function of a two-wavelength multi–demultiplexer.

Fig. 2
Fig. 2

Specified branching characteristics for SW region one-way transmission: (a) multiplexer, (b) demultiplexer.

Fig. 3
Fig. 3

Specified branching characteristics for SW region two-way transmission: (a) multi–demultiplexer I, (b) multi–demultiplexer II.

Fig. 4
Fig. 4

Specified branching characteristics for LW region one-way transmission: (a) multiplexer, (b) demultiplexer.

Fig. 5
Fig. 5

Specified branching characteristics for LW region two-way transmission: (a) multi–demultiplexer I, (b) multi–demultiplexer II.

Fig. 6
Fig. 6

Frequency pattern for the mechanical vibration test.

Fig. 7
Fig. 7

Structure of internal-filter microoptic-type multi–demultiplexer.

Fig. 8
Fig. 8

Spectral responses of 0.81-, 0.89-, 1.2-, and 1.3-μm BPFs.

Fig. 9
Fig. 9

Expected cutoff characteristics of cascade-connected BPF.

Fig. 10
Fig. 10

Exterior of the two-wavelength multi–demultiplexer.

Fig. 11
Fig. 11

Block diagram of the newly developed measuring method for high-loss Hij (λ).

Fig. 12
Fig. 12

Initial branching characteristics of multi–demultiplexer I for LW region two-way transmission.

Tables (3)

Tables Icon

Table I Outline of the 6.3-Mbit/sec WDM Transmission System

Tables Icon

Table II Required Number of BPFs at Positions A, B, and C

Tables Icon

Table III Loss Variations in the Stability Tests

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