Abstract

The automated manufacture and characterization of compact four-port highly overcoupled fused couplers is reported. During the pulling stage of the manufacturing process, the light power in such devices is observed to cycle back and forth up to 1000 times between the two output ports for elongations smaller than 20 mm. For sufficiently long pulls, antisymmetric supermode cutoff has been observed for the first time to our knowledge, manifested by a sudden cessation of the coupling process. The measured wavelength dependence of the coupling ratio together with the device dimensions are consistent with the observation of cutoff as observed in pull-signature characteristics.

© 1987 Optical Society of America

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References

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  1. F. Bilodeau, S. Faucher, K. O. Hill, D. C. Johnson, presented at the 12th European Conference on Optical Communications, ECOC 12, Palacio do Congresos, Barcelona, Spain, September 22–25, 1986.
  2. K. O. Hill, D. C. Johnson, R. G. Lamont, in Proceedings of the Fifth International Conference on Integrated Optics and Optical Fibre Communications/Eleventh European Conference on Optical Communications (Instituto Internazionale delle Comunicazioni, Genova, Italy), Vol. 2, p. 567.
  3. A. W. Snyder, Electron. Lett. 21, 623 (1985).
    [Crossref]
  4. A. Ankiewicz, A. W. Snyder, X. Zheng, IEEE J. Lightwave Technol. LT-4, 1317 (1986).
    [Crossref]
  5. J. Love, A. Ankiewicz, IEEE J. Lightwave Technol. LT-3, 100 (1985).
    [Crossref]
  6. D. C. Johnson, K. O. Hill, Appl. Opt. 25, 3800 (1986).
    [Crossref] [PubMed]
  7. G. Meltz, J. R. Dunphy, W. W. Morey, E. Snitzer, Appl. Opt. 22, 464 (1983).
    [Crossref] [PubMed]

1986 (2)

A. Ankiewicz, A. W. Snyder, X. Zheng, IEEE J. Lightwave Technol. LT-4, 1317 (1986).
[Crossref]

D. C. Johnson, K. O. Hill, Appl. Opt. 25, 3800 (1986).
[Crossref] [PubMed]

1985 (2)

J. Love, A. Ankiewicz, IEEE J. Lightwave Technol. LT-3, 100 (1985).
[Crossref]

A. W. Snyder, Electron. Lett. 21, 623 (1985).
[Crossref]

1983 (1)

Ankiewicz, A.

A. Ankiewicz, A. W. Snyder, X. Zheng, IEEE J. Lightwave Technol. LT-4, 1317 (1986).
[Crossref]

J. Love, A. Ankiewicz, IEEE J. Lightwave Technol. LT-3, 100 (1985).
[Crossref]

Bilodeau, F.

F. Bilodeau, S. Faucher, K. O. Hill, D. C. Johnson, presented at the 12th European Conference on Optical Communications, ECOC 12, Palacio do Congresos, Barcelona, Spain, September 22–25, 1986.

Dunphy, J. R.

Faucher, S.

F. Bilodeau, S. Faucher, K. O. Hill, D. C. Johnson, presented at the 12th European Conference on Optical Communications, ECOC 12, Palacio do Congresos, Barcelona, Spain, September 22–25, 1986.

Hill, K. O.

D. C. Johnson, K. O. Hill, Appl. Opt. 25, 3800 (1986).
[Crossref] [PubMed]

F. Bilodeau, S. Faucher, K. O. Hill, D. C. Johnson, presented at the 12th European Conference on Optical Communications, ECOC 12, Palacio do Congresos, Barcelona, Spain, September 22–25, 1986.

K. O. Hill, D. C. Johnson, R. G. Lamont, in Proceedings of the Fifth International Conference on Integrated Optics and Optical Fibre Communications/Eleventh European Conference on Optical Communications (Instituto Internazionale delle Comunicazioni, Genova, Italy), Vol. 2, p. 567.

Johnson, D. C.

D. C. Johnson, K. O. Hill, Appl. Opt. 25, 3800 (1986).
[Crossref] [PubMed]

K. O. Hill, D. C. Johnson, R. G. Lamont, in Proceedings of the Fifth International Conference on Integrated Optics and Optical Fibre Communications/Eleventh European Conference on Optical Communications (Instituto Internazionale delle Comunicazioni, Genova, Italy), Vol. 2, p. 567.

F. Bilodeau, S. Faucher, K. O. Hill, D. C. Johnson, presented at the 12th European Conference on Optical Communications, ECOC 12, Palacio do Congresos, Barcelona, Spain, September 22–25, 1986.

Lamont, R. G.

K. O. Hill, D. C. Johnson, R. G. Lamont, in Proceedings of the Fifth International Conference on Integrated Optics and Optical Fibre Communications/Eleventh European Conference on Optical Communications (Instituto Internazionale delle Comunicazioni, Genova, Italy), Vol. 2, p. 567.

Love, J.

J. Love, A. Ankiewicz, IEEE J. Lightwave Technol. LT-3, 100 (1985).
[Crossref]

Meltz, G.

Morey, W. W.

Snitzer, E.

Snyder, A. W.

A. Ankiewicz, A. W. Snyder, X. Zheng, IEEE J. Lightwave Technol. LT-4, 1317 (1986).
[Crossref]

A. W. Snyder, Electron. Lett. 21, 623 (1985).
[Crossref]

Zheng, X.

A. Ankiewicz, A. W. Snyder, X. Zheng, IEEE J. Lightwave Technol. LT-4, 1317 (1986).
[Crossref]

Appl. Opt. (2)

Electron. Lett. (1)

A. W. Snyder, Electron. Lett. 21, 623 (1985).
[Crossref]

IEEE J. Lightwave Technol. (2)

A. Ankiewicz, A. W. Snyder, X. Zheng, IEEE J. Lightwave Technol. LT-4, 1317 (1986).
[Crossref]

J. Love, A. Ankiewicz, IEEE J. Lightwave Technol. LT-3, 100 (1985).
[Crossref]

Other (2)

F. Bilodeau, S. Faucher, K. O. Hill, D. C. Johnson, presented at the 12th European Conference on Optical Communications, ECOC 12, Palacio do Congresos, Barcelona, Spain, September 22–25, 1986.

K. O. Hill, D. C. Johnson, R. G. Lamont, in Proceedings of the Fifth International Conference on Integrated Optics and Optical Fibre Communications/Eleventh European Conference on Optical Communications (Instituto Internazionale delle Comunicazioni, Genova, Italy), Vol. 2, p. 567.

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Figures (4)

Fig. 1
Fig. 1

Pull signature of a typical overcoupled coupler. The two curves cycling between 0 and 100% are the complementary coupling ratios normalized to 100% versus the elongation of the coupler. The third trace, at the bottom, is the excess loss.

Fig. 2
Fig. 2

Logarithmic dependence of the cycle period as a function of the coupler elongation. The solid line is the experimental data fitted by an exponential function (dashed line).

Fig. 3
Fig. 3

Pull signature of a coupler exhibiting cutoff. Dashed line, the coupled-arm coupling ratio; fine solid line, the through-arm coupling ratio; heavy solid line, the excess loss.

Fig. 4
Fig. 4

The coupling ratio for power transfer to the coupled arm as a function of the wavelength of the light launched into the coupler.

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