Abstract

We present a novel all-fiber narrow-band filter based on pump-induced saturable-gain or -absorber gratings in a loop mirror. Our design provides built-in interferometric phase alignment of the signal to the grating for optimal filtering. Notch or bandpass functionality is determined by the choice of gain or absorption and the input ports selected for the pump and signal. The loop-mirror filter has potential bandwidths from the submegahertz to beyond the gigahertz regimes, and one can tune it optically by changing the wavelength of the pump light that establishes the grating. Such filters have potential applications to wavelength-division-multiplexed optical networks and optical rf signal processing.

© 1999 Optical Society of America

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References

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  1. D. Sadot and E. Boimovich, IEEE Commun. Mag. 36(12), 50 (1998).
    [CrossRef]
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    [CrossRef] [PubMed]
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    [CrossRef]
  4. B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Opt. Lett. 18, 2108 (1993).
    [CrossRef]
  5. M. Horowitz, R. Daisy, B. Fischer, and J. Zyskind, Electron. Lett. 30, 648 (1994).
    [CrossRef]
  6. M. Horowitz, R. Daisy, B. Fischer, and J. Zyskind, Opt. Lett. 19, 1406 (1994).
    [CrossRef] [PubMed]
  7. Y. Cheng, J. T. Kringlebotn, W. H. Loh, R. I. Laming, and D. N. Payne, Opt. Lett. 20, 875 (1995).
    [CrossRef] [PubMed]
  8. M. Horowitz, R. Daisy, and B. Fischer, Opt. Lett. 21, 299 (1996).
    [CrossRef] [PubMed]
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    [CrossRef]
  10. N. Kishi and T. Yazaki, IEEE Photon. Technol. Lett. 11, 182 (1999).
    [CrossRef]

1999 (1)

N. Kishi and T. Yazaki, IEEE Photon. Technol. Lett. 11, 182 (1999).
[CrossRef]

1998 (2)

D. Sadot and E. Boimovich, IEEE Commun. Mag. 36(12), 50 (1998).
[CrossRef]

M. D. Feuer, IEEE Photon. Technol. Lett. 10, 1587 (1998).
[CrossRef]

1996 (1)

1995 (1)

1994 (2)

M. Horowitz, R. Daisy, B. Fischer, and J. Zyskind, Electron. Lett. 30, 648 (1994).
[CrossRef]

M. Horowitz, R. Daisy, B. Fischer, and J. Zyskind, Opt. Lett. 19, 1406 (1994).
[CrossRef] [PubMed]

1993 (2)

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Opt. Lett. 18, 2108 (1993).
[CrossRef]

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Electron. Lett. 29, 1858 (1993).
[CrossRef]

1992 (1)

Boimovich, E.

D. Sadot and E. Boimovich, IEEE Commun. Mag. 36(12), 50 (1998).
[CrossRef]

Cheng, Y.

Daisy, R.

DiGiovanni, D. J.

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Electron. Lett. 29, 1858 (1993).
[CrossRef]

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Opt. Lett. 18, 2108 (1993).
[CrossRef]

Feuer, M. D.

M. D. Feuer, IEEE Photon. Technol. Lett. 10, 1587 (1998).
[CrossRef]

Fischer, B.

Frisken, S. J.

Horowitz, M.

Kishi, N.

N. Kishi and T. Yazaki, IEEE Photon. Technol. Lett. 11, 182 (1999).
[CrossRef]

Kringlebotn, J. T.

Laming, R. I.

Loh, W. H.

Payne, D. N.

Sadot, D.

D. Sadot and E. Boimovich, IEEE Commun. Mag. 36(12), 50 (1998).
[CrossRef]

Sulhoff, J. W.

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Electron. Lett. 29, 1858 (1993).
[CrossRef]

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Opt. Lett. 18, 2108 (1993).
[CrossRef]

Yazaki, T.

N. Kishi and T. Yazaki, IEEE Photon. Technol. Lett. 11, 182 (1999).
[CrossRef]

Zyskind, J.

M. Horowitz, R. Daisy, B. Fischer, and J. Zyskind, Opt. Lett. 19, 1406 (1994).
[CrossRef] [PubMed]

M. Horowitz, R. Daisy, B. Fischer, and J. Zyskind, Electron. Lett. 30, 648 (1994).
[CrossRef]

Zyskind, J. L.

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Electron. Lett. 29, 1858 (1993).
[CrossRef]

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Opt. Lett. 18, 2108 (1993).
[CrossRef]

Electron. Lett. (2)

B. Fischer, J. L. Zyskind, J. W. Sulhoff, and D. J. DiGiovanni, Electron. Lett. 29, 1858 (1993).
[CrossRef]

M. Horowitz, R. Daisy, B. Fischer, and J. Zyskind, Electron. Lett. 30, 648 (1994).
[CrossRef]

IEEE Commun. Mag. (1)

D. Sadot and E. Boimovich, IEEE Commun. Mag. 36(12), 50 (1998).
[CrossRef]

IEEE Photon. Technol. Lett. (2)

M. D. Feuer, IEEE Photon. Technol. Lett. 10, 1587 (1998).
[CrossRef]

N. Kishi and T. Yazaki, IEEE Photon. Technol. Lett. 11, 182 (1999).
[CrossRef]

Opt. Lett. (5)

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Figures (4)

Fig. 1
Fig. 1

The LMF is simply a fiber loop mirror containing a saturable-gain or -absorber section.

Fig. 2
Fig. 2

Theoretical responses of (a) notch LMF’s with saturable-gain gratings and (b) bandpass LMF’s with saturable-absorber gratings, for several EDF lengths.

Fig. 3
Fig. 3

Experimental LMF characterization setup for pump and signal input to the same port of a 50/50 coupler.

Fig. 4
Fig. 4

Measured responses of (a) tunable notch LMF’s with saturable-gain gratings and (b) tunable bandpass LMF’s with saturable-absorber gratings.

Equations (2)

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dP±dz=±g0a2-b21/2P±-a-a2-b21/22,
dS±dz=±g0a2-b21/2S±-1+Ω21/2A2+A2-×a-a2-b21/2bcos2Δkz+ϕ21+φ,

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