Abstract

Digital operation of an all-optical intensity switch is demonstrated in a two-mode interferometer constructed from ytterbium-doped fiber. We clamp the resonantly enhanced phase shift responsible for the switching by allowing the fiber to lase, resulting in a bistable, digital response. The degree of phase shift at the clamping point can be controlled by adjustment of the laser threshold, and for complete switching (phase shift of π) the power length product PLπ was estimated to be 1.3 mW m. Isolation of 11  dB was observed, with switching speed limited by the relaxation time of ytterbium.

© 1998 Optical Society of America

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  1. R. H. Pantell, R. W. Sadowski, M. J. F. Digonnet, and H. J. Shaw, Opt. Lett. 17, 1026 (1992).
    [CrossRef] [PubMed]
  2. B. Wu and P. L. Chu, IEEE Photon. Technol. Lett. 8, 230 (1996).
    [CrossRef]
  3. M. J. F. Digonnet, R. W. Sadowski, H. J. Shaw, and R. H. Pantell, Opt. Fiber Technol. 3, 44 (1997).
    [CrossRef]
  4. D. Mayweather, M. J. F. Digonnet, and R. H. Pantell, J. Lightwave Technol. 14, 601 (1996).
    [CrossRef]
  5. R. H. Pantell, M. J. F. Digonnet, R. W. Sadowski, and H. J. Shaw, J. Lightwave Technol. 11, 1416 (1993).
    [CrossRef]
  6. J. W. Arkwright, P. Elango, T. W. Whitbread, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 408 (1996).
    [CrossRef]
  7. G. R. Atkins, P. Elango, and J. W. Arkwright, in International Quantum Electronics Conference, 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), paper WL56.
  8. E. Nakazawa and S. Shionoya, Phys. Rev. Lett. 25, 1710 (1970).
    [CrossRef]
  9. P. Elango, J. W. Arkwright, P. L. Chu, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 1032 (1996).
    [CrossRef]
  10. B. Y. Kim, J. N. Blake, S. Y. Huang, and H. J. Shaw, Opt. Lett. 12, 729 (1987).
    [CrossRef] [PubMed]
  11. J. W. Arkwright, P. Elango, T. Whitbread, and G. R. Atkins, Proc. SPIE 2841, 189 (1996).
    [CrossRef]
  12. R. Kashyap, G. D. Maxwell, and B. J. Ainslie, IEEE Photon. Technol. Lett. 5, 191 (1993).
    [CrossRef]

1997 (1)

M. J. F. Digonnet, R. W. Sadowski, H. J. Shaw, and R. H. Pantell, Opt. Fiber Technol. 3, 44 (1997).
[CrossRef]

1996 (5)

D. Mayweather, M. J. F. Digonnet, and R. H. Pantell, J. Lightwave Technol. 14, 601 (1996).
[CrossRef]

J. W. Arkwright, P. Elango, T. W. Whitbread, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 408 (1996).
[CrossRef]

P. Elango, J. W. Arkwright, P. L. Chu, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 1032 (1996).
[CrossRef]

J. W. Arkwright, P. Elango, T. Whitbread, and G. R. Atkins, Proc. SPIE 2841, 189 (1996).
[CrossRef]

B. Wu and P. L. Chu, IEEE Photon. Technol. Lett. 8, 230 (1996).
[CrossRef]

1993 (2)

R. Kashyap, G. D. Maxwell, and B. J. Ainslie, IEEE Photon. Technol. Lett. 5, 191 (1993).
[CrossRef]

R. H. Pantell, M. J. F. Digonnet, R. W. Sadowski, and H. J. Shaw, J. Lightwave Technol. 11, 1416 (1993).
[CrossRef]

1992 (1)

1987 (1)

1970 (1)

E. Nakazawa and S. Shionoya, Phys. Rev. Lett. 25, 1710 (1970).
[CrossRef]

Ainslie, B. J.

R. Kashyap, G. D. Maxwell, and B. J. Ainslie, IEEE Photon. Technol. Lett. 5, 191 (1993).
[CrossRef]

Arkwright, J. W.

J. W. Arkwright, P. Elango, T. W. Whitbread, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 408 (1996).
[CrossRef]

P. Elango, J. W. Arkwright, P. L. Chu, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 1032 (1996).
[CrossRef]

J. W. Arkwright, P. Elango, T. Whitbread, and G. R. Atkins, Proc. SPIE 2841, 189 (1996).
[CrossRef]

G. R. Atkins, P. Elango, and J. W. Arkwright, in International Quantum Electronics Conference, 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), paper WL56.

Atkins, G. R.

J. W. Arkwright, P. Elango, T. Whitbread, and G. R. Atkins, Proc. SPIE 2841, 189 (1996).
[CrossRef]

P. Elango, J. W. Arkwright, P. L. Chu, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 1032 (1996).
[CrossRef]

J. W. Arkwright, P. Elango, T. W. Whitbread, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 408 (1996).
[CrossRef]

G. R. Atkins, P. Elango, and J. W. Arkwright, in International Quantum Electronics Conference, 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), paper WL56.

Blake, J. N.

Chu, P. L.

P. Elango, J. W. Arkwright, P. L. Chu, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 1032 (1996).
[CrossRef]

B. Wu and P. L. Chu, IEEE Photon. Technol. Lett. 8, 230 (1996).
[CrossRef]

Digonnet, M. J. F.

M. J. F. Digonnet, R. W. Sadowski, H. J. Shaw, and R. H. Pantell, Opt. Fiber Technol. 3, 44 (1997).
[CrossRef]

D. Mayweather, M. J. F. Digonnet, and R. H. Pantell, J. Lightwave Technol. 14, 601 (1996).
[CrossRef]

R. H. Pantell, M. J. F. Digonnet, R. W. Sadowski, and H. J. Shaw, J. Lightwave Technol. 11, 1416 (1993).
[CrossRef]

R. H. Pantell, R. W. Sadowski, M. J. F. Digonnet, and H. J. Shaw, Opt. Lett. 17, 1026 (1992).
[CrossRef] [PubMed]

Elango, P.

J. W. Arkwright, P. Elango, T. W. Whitbread, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 408 (1996).
[CrossRef]

P. Elango, J. W. Arkwright, P. L. Chu, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 1032 (1996).
[CrossRef]

J. W. Arkwright, P. Elango, T. Whitbread, and G. R. Atkins, Proc. SPIE 2841, 189 (1996).
[CrossRef]

G. R. Atkins, P. Elango, and J. W. Arkwright, in International Quantum Electronics Conference, 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), paper WL56.

Huang, S. Y.

Kashyap, R.

R. Kashyap, G. D. Maxwell, and B. J. Ainslie, IEEE Photon. Technol. Lett. 5, 191 (1993).
[CrossRef]

Kim, B. Y.

Maxwell, G. D.

R. Kashyap, G. D. Maxwell, and B. J. Ainslie, IEEE Photon. Technol. Lett. 5, 191 (1993).
[CrossRef]

Mayweather, D.

D. Mayweather, M. J. F. Digonnet, and R. H. Pantell, J. Lightwave Technol. 14, 601 (1996).
[CrossRef]

Nakazawa, E.

E. Nakazawa and S. Shionoya, Phys. Rev. Lett. 25, 1710 (1970).
[CrossRef]

Pantell, R. H.

M. J. F. Digonnet, R. W. Sadowski, H. J. Shaw, and R. H. Pantell, Opt. Fiber Technol. 3, 44 (1997).
[CrossRef]

D. Mayweather, M. J. F. Digonnet, and R. H. Pantell, J. Lightwave Technol. 14, 601 (1996).
[CrossRef]

R. H. Pantell, M. J. F. Digonnet, R. W. Sadowski, and H. J. Shaw, J. Lightwave Technol. 11, 1416 (1993).
[CrossRef]

R. H. Pantell, R. W. Sadowski, M. J. F. Digonnet, and H. J. Shaw, Opt. Lett. 17, 1026 (1992).
[CrossRef] [PubMed]

Sadowski, R. W.

M. J. F. Digonnet, R. W. Sadowski, H. J. Shaw, and R. H. Pantell, Opt. Fiber Technol. 3, 44 (1997).
[CrossRef]

R. H. Pantell, M. J. F. Digonnet, R. W. Sadowski, and H. J. Shaw, J. Lightwave Technol. 11, 1416 (1993).
[CrossRef]

R. H. Pantell, R. W. Sadowski, M. J. F. Digonnet, and H. J. Shaw, Opt. Lett. 17, 1026 (1992).
[CrossRef] [PubMed]

Shaw, H. J.

M. J. F. Digonnet, R. W. Sadowski, H. J. Shaw, and R. H. Pantell, Opt. Fiber Technol. 3, 44 (1997).
[CrossRef]

R. H. Pantell, M. J. F. Digonnet, R. W. Sadowski, and H. J. Shaw, J. Lightwave Technol. 11, 1416 (1993).
[CrossRef]

R. H. Pantell, R. W. Sadowski, M. J. F. Digonnet, and H. J. Shaw, Opt. Lett. 17, 1026 (1992).
[CrossRef] [PubMed]

B. Y. Kim, J. N. Blake, S. Y. Huang, and H. J. Shaw, Opt. Lett. 12, 729 (1987).
[CrossRef] [PubMed]

Shionoya, S.

E. Nakazawa and S. Shionoya, Phys. Rev. Lett. 25, 1710 (1970).
[CrossRef]

Whitbread, T.

J. W. Arkwright, P. Elango, T. Whitbread, and G. R. Atkins, Proc. SPIE 2841, 189 (1996).
[CrossRef]

Whitbread, T. W.

J. W. Arkwright, P. Elango, T. W. Whitbread, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 408 (1996).
[CrossRef]

Wu, B.

B. Wu and P. L. Chu, IEEE Photon. Technol. Lett. 8, 230 (1996).
[CrossRef]

IEEE Photon. Technol. Lett. (4)

B. Wu and P. L. Chu, IEEE Photon. Technol. Lett. 8, 230 (1996).
[CrossRef]

J. W. Arkwright, P. Elango, T. W. Whitbread, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 408 (1996).
[CrossRef]

P. Elango, J. W. Arkwright, P. L. Chu, and G. R. Atkins, IEEE Photon. Technol. Lett. 8, 1032 (1996).
[CrossRef]

R. Kashyap, G. D. Maxwell, and B. J. Ainslie, IEEE Photon. Technol. Lett. 5, 191 (1993).
[CrossRef]

J. Lightwave Technol. (2)

D. Mayweather, M. J. F. Digonnet, and R. H. Pantell, J. Lightwave Technol. 14, 601 (1996).
[CrossRef]

R. H. Pantell, M. J. F. Digonnet, R. W. Sadowski, and H. J. Shaw, J. Lightwave Technol. 11, 1416 (1993).
[CrossRef]

Opt. Fiber Technol. (1)

M. J. F. Digonnet, R. W. Sadowski, H. J. Shaw, and R. H. Pantell, Opt. Fiber Technol. 3, 44 (1997).
[CrossRef]

Opt. Lett. (2)

Phys. Rev. Lett. (1)

E. Nakazawa and S. Shionoya, Phys. Rev. Lett. 25, 1710 (1970).
[CrossRef]

Proc. SPIE (1)

J. W. Arkwright, P. Elango, T. Whitbread, and G. R. Atkins, Proc. SPIE 2841, 189 (1996).
[CrossRef]

Other (1)

G. R. Atkins, P. Elango, and J. W. Arkwright, in International Quantum Electronics Conference, 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), paper WL56.

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Figures (3)

Fig. 1
Fig. 1

Schematic of the apparatus: LD, laser diode.

Fig. 2
Fig. 2

Phase shift (in units of π rad) versus launched pump power for high and low laser thresholds. Error bars appear only when they are larger than the size of the symbols.

Fig. 3
Fig. 3

Oscilloscope traces of signal lobe intensity for the low-threshold case, with the pump chopped at 90  Hz. Note that the signal intensity was high when the pump was off, as indicated by the reversed intensity scale. The apparent delay at the pump-on point is due to a small initial increase in signal intensity (caused by a slight error in the bias) as the phase shift builds up.

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