Abstract

A high-isolation polarization-independent optical quasi-circulator with a simple structure is proposed. A Porro prism is employed in this kind of device for what is believed to be the first time. Because a Porro prism is used, light beams pass back and forth through the main elements in the device. Thus the number of elements used in the device is decreased, and the device structure is simplified. A four-port quasi-circulator with monomode fibers was assembled and tested at the 1.55?µm wavelength. Its insertion loss, isolation, and return loss are ?1.63, ?60, and ?55.6 dB, respectively.

© 1998 Optical Society of America

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  1. M. Koga, J. Minowa, and T. Matsumoto, Trans. Inst. Electron. Inf. Commun. Eng. Jpn. E 72, 1086 (1989).
  2. Y. Sato and K. Aoyama, IEEE Photon. Technol. Lett. 3, 1001 (1991).
    [CrossRef]
  3. S. Nishi, K. Aida, and K. Nakagawa, presented at the 16th European Conference on Optical Communication, Amsterdam, September 16–20, 1990.
  4. Y. Fujii, IEEE J. Lightwave Technol. 9, 456 (1991).
    [CrossRef]
  5. Y. Fujii, IEEE J. Lightwave Technol. 10, 1238 (1991).
    [CrossRef]
  6. M. Koga and T. Matsumoto, Electron. Lett. 27, 903 (1991).
    [CrossRef]
  7. Y. Fujii, IEEE J. Lightwave Technol. 10, 1226 (1992).
    [CrossRef]
  8. Y. Fujii, Opt. Lett. 18, 250 (1993).
    [CrossRef]
  9. M. Koga and T. Matsumoto, IEEE J. Lightwave Technol. 10, 1210 (1992).
    [CrossRef]
  10. M. Koga, Electron. Lett. 30, 1438 (1994).
    [CrossRef]
  11. Y. Cheng, “Optical circulator,” U.S. patent5574596 (November12, 1996).

1994 (1)

M. Koga, Electron. Lett. 30, 1438 (1994).
[CrossRef]

1993 (1)

1992 (2)

Y. Fujii, IEEE J. Lightwave Technol. 10, 1226 (1992).
[CrossRef]

M. Koga and T. Matsumoto, IEEE J. Lightwave Technol. 10, 1210 (1992).
[CrossRef]

1991 (4)

Y. Sato and K. Aoyama, IEEE Photon. Technol. Lett. 3, 1001 (1991).
[CrossRef]

Y. Fujii, IEEE J. Lightwave Technol. 9, 456 (1991).
[CrossRef]

Y. Fujii, IEEE J. Lightwave Technol. 10, 1238 (1991).
[CrossRef]

M. Koga and T. Matsumoto, Electron. Lett. 27, 903 (1991).
[CrossRef]

1989 (1)

M. Koga, J. Minowa, and T. Matsumoto, Trans. Inst. Electron. Inf. Commun. Eng. Jpn. E 72, 1086 (1989).

Aida, K.

S. Nishi, K. Aida, and K. Nakagawa, presented at the 16th European Conference on Optical Communication, Amsterdam, September 16–20, 1990.

Aoyama, K.

Y. Sato and K. Aoyama, IEEE Photon. Technol. Lett. 3, 1001 (1991).
[CrossRef]

Cheng, Y.

Y. Cheng, “Optical circulator,” U.S. patent5574596 (November12, 1996).

Fujii, Y.

Y. Fujii, Opt. Lett. 18, 250 (1993).
[CrossRef]

Y. Fujii, IEEE J. Lightwave Technol. 10, 1226 (1992).
[CrossRef]

Y. Fujii, IEEE J. Lightwave Technol. 9, 456 (1991).
[CrossRef]

Y. Fujii, IEEE J. Lightwave Technol. 10, 1238 (1991).
[CrossRef]

Koga, M.

M. Koga, Electron. Lett. 30, 1438 (1994).
[CrossRef]

M. Koga and T. Matsumoto, IEEE J. Lightwave Technol. 10, 1210 (1992).
[CrossRef]

M. Koga and T. Matsumoto, Electron. Lett. 27, 903 (1991).
[CrossRef]

M. Koga, J. Minowa, and T. Matsumoto, Trans. Inst. Electron. Inf. Commun. Eng. Jpn. E 72, 1086 (1989).

Matsumoto, T.

M. Koga and T. Matsumoto, IEEE J. Lightwave Technol. 10, 1210 (1992).
[CrossRef]

M. Koga and T. Matsumoto, Electron. Lett. 27, 903 (1991).
[CrossRef]

M. Koga, J. Minowa, and T. Matsumoto, Trans. Inst. Electron. Inf. Commun. Eng. Jpn. E 72, 1086 (1989).

Minowa, J.

M. Koga, J. Minowa, and T. Matsumoto, Trans. Inst. Electron. Inf. Commun. Eng. Jpn. E 72, 1086 (1989).

Nakagawa, K.

S. Nishi, K. Aida, and K. Nakagawa, presented at the 16th European Conference on Optical Communication, Amsterdam, September 16–20, 1990.

Nishi, S.

S. Nishi, K. Aida, and K. Nakagawa, presented at the 16th European Conference on Optical Communication, Amsterdam, September 16–20, 1990.

Sato, Y.

Y. Sato and K. Aoyama, IEEE Photon. Technol. Lett. 3, 1001 (1991).
[CrossRef]

Electron. Lett. (2)

M. Koga and T. Matsumoto, Electron. Lett. 27, 903 (1991).
[CrossRef]

M. Koga, Electron. Lett. 30, 1438 (1994).
[CrossRef]

IEEE J. Lightwave Technol. (4)

Y. Fujii, IEEE J. Lightwave Technol. 10, 1226 (1992).
[CrossRef]

M. Koga and T. Matsumoto, IEEE J. Lightwave Technol. 10, 1210 (1992).
[CrossRef]

Y. Fujii, IEEE J. Lightwave Technol. 9, 456 (1991).
[CrossRef]

Y. Fujii, IEEE J. Lightwave Technol. 10, 1238 (1991).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

Y. Sato and K. Aoyama, IEEE Photon. Technol. Lett. 3, 1001 (1991).
[CrossRef]

Opt. Lett. (1)

Trans. Inst. Electron. Inf. Commun. Eng. Jpn. E (1)

M. Koga, J. Minowa, and T. Matsumoto, Trans. Inst. Electron. Inf. Commun. Eng. Jpn. E 72, 1086 (1989).

Other (2)

S. Nishi, K. Aida, and K. Nakagawa, presented at the 16th European Conference on Optical Communication, Amsterdam, September 16–20, 1990.

Y. Cheng, “Optical circulator,” U.S. patent5574596 (November12, 1996).

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