Abstract

We present an all-optical novel configuration for implementing multitap transversal filters by use of a broadband source sliced by fiber Bragg grating arrays generated by propagating an acoustic wave along a strong uniform fiber Bragg grating. The tunability and reconfigurability of the microwave filter are demonstrated.

© 2005 Optical Society of America

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References

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  1. K.-H. Lee, W.-Y. Choi, S. Choi, and K. Oh, IEEE Photon. Technol. Lett. 15, 969 (2003).
    [CrossRef]
  2. J. Capmany, D. Pastor, and B. Ortega, Electron. Lett. 35, 640 (1999).
    [CrossRef]
  3. J. Mora, B. Ortega, J. Capmany, J. L. Cruz, M. V. Andrés, D. Pastor, and S. Sales, Opt. Express 10, 1291 (2002), http://www.opticsexpress.org .
    [CrossRef] [PubMed]
  4. J. Mora, M. V. Andrés, J. L. Cruz, B. Ortega, J. Capmany, D. Pastor, and S. Sales, Opt. Lett. 28, 1308 (2003).
    [CrossRef] [PubMed]
  5. B. A. L. Gwandu, W. Zhang, J. A. R. Williams, L. Zhang, and I. Bennion, Electron. Lett. 37, 1328 (2002).
    [CrossRef]
  6. N. Q. Ngo, S. Y. Li, R. T. Zheng, S. C. Tjin, and P. Shum, J. Lightwave Technol. 21, 1568 (2003).
    [CrossRef]
  7. W. F. Liu, P. St. J. Russell, and L. Dong, J. Lightwave Technol. 16, 2006 (1998).
    [CrossRef]

2003 (3)

2002 (2)

1999 (1)

J. Capmany, D. Pastor, and B. Ortega, Electron. Lett. 35, 640 (1999).
[CrossRef]

1998 (1)

Andrés, M. V.

Bennion, I.

B. A. L. Gwandu, W. Zhang, J. A. R. Williams, L. Zhang, and I. Bennion, Electron. Lett. 37, 1328 (2002).
[CrossRef]

Capmany, J.

Choi, S.

K.-H. Lee, W.-Y. Choi, S. Choi, and K. Oh, IEEE Photon. Technol. Lett. 15, 969 (2003).
[CrossRef]

Choi, W.-Y.

K.-H. Lee, W.-Y. Choi, S. Choi, and K. Oh, IEEE Photon. Technol. Lett. 15, 969 (2003).
[CrossRef]

Cruz, J. L.

Dong, L.

Gwandu, B. A. L.

B. A. L. Gwandu, W. Zhang, J. A. R. Williams, L. Zhang, and I. Bennion, Electron. Lett. 37, 1328 (2002).
[CrossRef]

Lee, K.-H.

K.-H. Lee, W.-Y. Choi, S. Choi, and K. Oh, IEEE Photon. Technol. Lett. 15, 969 (2003).
[CrossRef]

Li, S. Y.

Liu, W. F.

Mora, J.

Ngo, N. Q.

Oh, K.

K.-H. Lee, W.-Y. Choi, S. Choi, and K. Oh, IEEE Photon. Technol. Lett. 15, 969 (2003).
[CrossRef]

Ortega, B.

Pastor, D.

Russell, P. St. J.

Sales, S.

Shum, P.

Tjin, S. C.

Williams, J. A. R.

B. A. L. Gwandu, W. Zhang, J. A. R. Williams, L. Zhang, and I. Bennion, Electron. Lett. 37, 1328 (2002).
[CrossRef]

Zhang, L.

B. A. L. Gwandu, W. Zhang, J. A. R. Williams, L. Zhang, and I. Bennion, Electron. Lett. 37, 1328 (2002).
[CrossRef]

Zhang, W.

B. A. L. Gwandu, W. Zhang, J. A. R. Williams, L. Zhang, and I. Bennion, Electron. Lett. 37, 1328 (2002).
[CrossRef]

Zheng, R. T.

Electron. Lett. (2)

J. Capmany, D. Pastor, and B. Ortega, Electron. Lett. 35, 640 (1999).
[CrossRef]

B. A. L. Gwandu, W. Zhang, J. A. R. Williams, L. Zhang, and I. Bennion, Electron. Lett. 37, 1328 (2002).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

K.-H. Lee, W.-Y. Choi, S. Choi, and K. Oh, IEEE Photon. Technol. Lett. 15, 969 (2003).
[CrossRef]

J. Lightwave Technol. (2)

Opt. Express (1)

Opt. Lett. (1)

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Figures (5)

Fig. 1
Fig. 1

Experimental setup for implementing transversal filters.

Fig. 2
Fig. 2

Tapping element: scheme of the system to obtain the optical taps of the rf filters. Insets, theoretical reflection of the FBG when the acoustic waves is (a) off and (b) on.

Fig. 3
Fig. 3

(a) Wavelength shift between the central Bragg wavelength λB and the first- (filled circles) and second-order (filled triangles) sidebands versus frequency fs. (b) Reflectivity of the central grating (filled squares) and the sidebands (filled circles, first order; filled triangles, second order; filled upside-down triangles, third order) versus the acoustic power at fs=1 MHz.

Fig. 4
Fig. 4

Optical spectra (left) and their experimental (solid curves) and theoretical (dashed curve) transfer functions (right) for frequencies of (top) 0.755 and (bottom) 1.444 MHz. Acoustic power 2.4 mW.

Fig. 5
Fig. 5

Optical spectra (left) and their transfer functions (right), both experimental (solid curves) and theoretical (dashed curves) for three values of the acoustic power: (a) 2.4, (b) 1.4, and (c) 0.4 mW.

Equations (4)

Equations on this page are rendered with MathJax. Learn more.

HΩ=mPmηmΩexp-jmΔλDLFΩ,
ηmΩ=ρmω-ωm2exp-jβLFΩω-ωmdωρmω-ωm2dω,
Δλ=λB22nvsfs,
κm=κJmλBΔλ2PsESvgs,

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