Abstract

A largely tunable chirped fiber Bragg grating (CFBG)-based dispersion compensator with fixed center wavelength is demonstrated. Tunable dispersion ranging from 178 to 2126 ps/nm, corresponding to a large range of 3-db bandwidth from 0.42 to 5.04 nm, is realized by using a 10 cm-long CFBG with an original bandwidth of 1.61 nm. The variation in center wavelength is less than 0.2 nm.

© 2003 Optical Society of America

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References

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  1. V. Gusmeroli, D. Scarano, �??Fiber grating dispersion compensator,�?? OFC (Optical Society of America, Washington, D.C., 1999) 4, 11-13.
  2. R. Kashyap, H.-G. Froehlich, A. Swanton, D. J. Armes, �??1.3 m long super-step-chirped fibre Bragg grating with a continuous delay of 13.5 ns and bandwidth 10 nm for broadband dispersion compensation,�?? Electron. Lett. 32, 1807-1809 (1996).
    [CrossRef]
  3. M. K. Durkin, M. Ibsen, M. J. Cole, and R. I. Laming, �??1 m long continuously-written fibre Bragg gratings for combined second- and third-order dispersion compensation,�?? Electron. Lett. 33, 1891-1893 (1997).
    [CrossRef]
  4. J. Lauzon, S. Thibault, J. Martin, and F. Ouelletter, �??Implementation and characterization of fiber Bragg grating linearly chirped by a temperature-gradient,�?? Opt. Lett. 19, 2027-2029 (1994).
    [CrossRef] [PubMed]
  5. M.L. Blanc, S. Y. Huang, M. M. Ohn and R. M. Measures, �??Tunable chirping of a fibre Bragg grating using a tapered cantilever bed,�?? Electron. Lett. 30, 2163-2165 (1994).
    [CrossRef]
  6. M. M. Ohn, A. t. Alavie, R. Maaskant, M. G. Xu, F. Bilodeau, K. O. Hill., �??Dispersion variable fibre Bragg grating using a piezoelectric stack,�?? Electron. Lett. 32, 2000-2001, (1996).
    [CrossRef]
  7. B. J. Eggleton, J. A. Rogers, P. S. Westbook, and T. A. Strasser, �??Electrically tunable power efficient dispersion compensation fiber Bragg grating,�?? IEEE Photon. Technol. Lett. 11, 854-856 (1999).
    [CrossRef]
  8. J. L. Cruz, A. Diez, M. V. Andres, A. Segura, B. Ortega, L. Dong, �??Fibre Bragg gratings tuned and chirped using magnetic fields,�?? Electron. Lett. 33, 235-236 (1997).
    [CrossRef]
  9. N. Q. Ngo, S. Y. Li, R. T. Zheng, S. C. Tjin, and P. Shum, �??Electrically tunable dispersion compensator with fixed center wavelength using fiber Bragg grating,�?? J. Lightwave Technol. 21, 1568-1575 (2003).
    [CrossRef]
  10. X. Dong, B.-O. Guan, S. Yuan, X. Dong, H.-Y. Tam, �??Strain gradient chirp of fiber Bragg grating without shift of central Bragg wavelength,�?? Opt. Commun. 202, 91-95 (2002).
    [CrossRef]

Electron. Lett. (5)

R. Kashyap, H.-G. Froehlich, A. Swanton, D. J. Armes, �??1.3 m long super-step-chirped fibre Bragg grating with a continuous delay of 13.5 ns and bandwidth 10 nm for broadband dispersion compensation,�?? Electron. Lett. 32, 1807-1809 (1996).
[CrossRef]

M. K. Durkin, M. Ibsen, M. J. Cole, and R. I. Laming, �??1 m long continuously-written fibre Bragg gratings for combined second- and third-order dispersion compensation,�?? Electron. Lett. 33, 1891-1893 (1997).
[CrossRef]

M.L. Blanc, S. Y. Huang, M. M. Ohn and R. M. Measures, �??Tunable chirping of a fibre Bragg grating using a tapered cantilever bed,�?? Electron. Lett. 30, 2163-2165 (1994).
[CrossRef]

M. M. Ohn, A. t. Alavie, R. Maaskant, M. G. Xu, F. Bilodeau, K. O. Hill., �??Dispersion variable fibre Bragg grating using a piezoelectric stack,�?? Electron. Lett. 32, 2000-2001, (1996).
[CrossRef]

J. L. Cruz, A. Diez, M. V. Andres, A. Segura, B. Ortega, L. Dong, �??Fibre Bragg gratings tuned and chirped using magnetic fields,�?? Electron. Lett. 33, 235-236 (1997).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

B. J. Eggleton, J. A. Rogers, P. S. Westbook, and T. A. Strasser, �??Electrically tunable power efficient dispersion compensation fiber Bragg grating,�?? IEEE Photon. Technol. Lett. 11, 854-856 (1999).
[CrossRef]

J. Lightwave Technol. (1)

OFC 1999 (1)

V. Gusmeroli, D. Scarano, �??Fiber grating dispersion compensator,�?? OFC (Optical Society of America, Washington, D.C., 1999) 4, 11-13.

Opt. Commun. (1)

X. Dong, B.-O. Guan, S. Yuan, X. Dong, H.-Y. Tam, �??Strain gradient chirp of fiber Bragg grating without shift of central Bragg wavelength,�?? Opt. Commun. 202, 91-95 (2002).
[CrossRef]

Opt. Lett. (1)

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Figures (5)

Fig. 1.
Fig. 1.

Schematic diagram of the CFBG-based tunable dispersion compensator.

Fig. 2.
Fig. 2.

Comparison of curvature distribution and Bragg wavelength variation between methods presented in this paper (blue lines) and in Ref. 10 (red lines).

Fig. 3.
Fig. 3.

Reflection spectra of the tunable dispersion compensator measured under different adjustment.

Fig. 4.
Fig. 4.

Relationship between 3-dB reflection bandwidth and displacement at the free end of the cantilever beam, and the variation in center wavelength.

Fig. 5.
Fig. 5.

Measured time delay for various 3-dB bandwidths of 0.42, 2.05, and 5.04 nm.

Equations (3)

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κ ( x ) = M ( x ) E I ( x ) = 12 L F E h 3 b 0 = 2 f L 2
Δ λ B λ B = C 2 ( 1 p e ) κ l sin ( 2 θ )
Δ λ c = Δ λ B max Δ λ B min = A κ

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