Abstract

An all-optical dynamic gain tilt compensator (DGTC) is proposed and experimentally demonstrated. A single wide-band thin film filter and a pair of photodetector allow the DGTC to distinguish band add/drop position. Power fluctuations from EDFA gain tilt were reduced with fast electronic variable optical attenuators.

© 2006 Optical Society of America

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References

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  1. A. K. Srivastava, Y. Sun, J. L. Zyskind, and J. W. Sulhoff, "EDFA transient response to channel loss in WDM transmission system," IEEE Photon. Technol. Lett. 9, 386-389, (1997).
    [CrossRef]
  2. A. V. Tran, C-J Chae, and R. S. Tucker, "All-optical gain control for bi-directional optical add-drop multiplexer using ASE noise path through multi-port circulators," IEE Electron. Lett. 39, 1839-1841, (2003).Q1
    [CrossRef]
  3. A. Bianciotto, A. Carena, V. Ferrero, and R. Gaudino, "EDFA gain transients: experimental demonstration of a low cost electronic control," IEEE Photon. Technol. Lett. 15, 1351-1353 (2003).
    [CrossRef]
  4. Y. Sun, A. K. Srivastava, J. Zhou, and J. W. Sulhoff, "Optical fiber amplifiers for WDM optical networks," Bell Labs Tech. J. 187-206 (1999).
  5. P. C. Becker, N. A. Olsson, and J. R. Simpson, Erbium-doped fiber amplifiers: Fundamentals and technology, (Academic Press, 1999), Chap. 9.
  6. P. S. Chan, C. Y. Chow, and H. K. Tsang, "EDFA per-band gain-tilt compensation," in conference on Optical Amplifier and their Applications (Washington, DC, Optical Society of America, 2006).
  7. H. A. Macleod, Thin film optical filter, 3rd ed., (Bristol & Philadelphia, Institute of Physics Publishing, 2001), Chap. 6.
    [CrossRef]
  8. See for example the mico-optic thin film filter (TFF) bandpass products at http://www.fibercom.com.tw.

2003 (2)

A. V. Tran, C-J Chae, and R. S. Tucker, "All-optical gain control for bi-directional optical add-drop multiplexer using ASE noise path through multi-port circulators," IEE Electron. Lett. 39, 1839-1841, (2003).Q1
[CrossRef]

A. Bianciotto, A. Carena, V. Ferrero, and R. Gaudino, "EDFA gain transients: experimental demonstration of a low cost electronic control," IEEE Photon. Technol. Lett. 15, 1351-1353 (2003).
[CrossRef]

1997 (1)

A. K. Srivastava, Y. Sun, J. L. Zyskind, and J. W. Sulhoff, "EDFA transient response to channel loss in WDM transmission system," IEEE Photon. Technol. Lett. 9, 386-389, (1997).
[CrossRef]

Bianciotto, A.

A. Bianciotto, A. Carena, V. Ferrero, and R. Gaudino, "EDFA gain transients: experimental demonstration of a low cost electronic control," IEEE Photon. Technol. Lett. 15, 1351-1353 (2003).
[CrossRef]

Carena, A.

A. Bianciotto, A. Carena, V. Ferrero, and R. Gaudino, "EDFA gain transients: experimental demonstration of a low cost electronic control," IEEE Photon. Technol. Lett. 15, 1351-1353 (2003).
[CrossRef]

Chae, C-J

A. V. Tran, C-J Chae, and R. S. Tucker, "All-optical gain control for bi-directional optical add-drop multiplexer using ASE noise path through multi-port circulators," IEE Electron. Lett. 39, 1839-1841, (2003).Q1
[CrossRef]

Ferrero, V.

A. Bianciotto, A. Carena, V. Ferrero, and R. Gaudino, "EDFA gain transients: experimental demonstration of a low cost electronic control," IEEE Photon. Technol. Lett. 15, 1351-1353 (2003).
[CrossRef]

Gaudino, R.

A. Bianciotto, A. Carena, V. Ferrero, and R. Gaudino, "EDFA gain transients: experimental demonstration of a low cost electronic control," IEEE Photon. Technol. Lett. 15, 1351-1353 (2003).
[CrossRef]

Srivastava, A. K.

A. K. Srivastava, Y. Sun, J. L. Zyskind, and J. W. Sulhoff, "EDFA transient response to channel loss in WDM transmission system," IEEE Photon. Technol. Lett. 9, 386-389, (1997).
[CrossRef]

Sulhoff, J. W.

A. K. Srivastava, Y. Sun, J. L. Zyskind, and J. W. Sulhoff, "EDFA transient response to channel loss in WDM transmission system," IEEE Photon. Technol. Lett. 9, 386-389, (1997).
[CrossRef]

Sun, Y.

A. K. Srivastava, Y. Sun, J. L. Zyskind, and J. W. Sulhoff, "EDFA transient response to channel loss in WDM transmission system," IEEE Photon. Technol. Lett. 9, 386-389, (1997).
[CrossRef]

Tran, A. V.

A. V. Tran, C-J Chae, and R. S. Tucker, "All-optical gain control for bi-directional optical add-drop multiplexer using ASE noise path through multi-port circulators," IEE Electron. Lett. 39, 1839-1841, (2003).Q1
[CrossRef]

Tucker, R. S.

A. V. Tran, C-J Chae, and R. S. Tucker, "All-optical gain control for bi-directional optical add-drop multiplexer using ASE noise path through multi-port circulators," IEE Electron. Lett. 39, 1839-1841, (2003).Q1
[CrossRef]

Zyskind, J. L.

A. K. Srivastava, Y. Sun, J. L. Zyskind, and J. W. Sulhoff, "EDFA transient response to channel loss in WDM transmission system," IEEE Photon. Technol. Lett. 9, 386-389, (1997).
[CrossRef]

IEE Electron. Lett. (1)

A. V. Tran, C-J Chae, and R. S. Tucker, "All-optical gain control for bi-directional optical add-drop multiplexer using ASE noise path through multi-port circulators," IEE Electron. Lett. 39, 1839-1841, (2003).Q1
[CrossRef]

IEEE Photon. Technol. Lett. (2)

A. Bianciotto, A. Carena, V. Ferrero, and R. Gaudino, "EDFA gain transients: experimental demonstration of a low cost electronic control," IEEE Photon. Technol. Lett. 15, 1351-1353 (2003).
[CrossRef]

A. K. Srivastava, Y. Sun, J. L. Zyskind, and J. W. Sulhoff, "EDFA transient response to channel loss in WDM transmission system," IEEE Photon. Technol. Lett. 9, 386-389, (1997).
[CrossRef]

Other (5)

Y. Sun, A. K. Srivastava, J. Zhou, and J. W. Sulhoff, "Optical fiber amplifiers for WDM optical networks," Bell Labs Tech. J. 187-206 (1999).

P. C. Becker, N. A. Olsson, and J. R. Simpson, Erbium-doped fiber amplifiers: Fundamentals and technology, (Academic Press, 1999), Chap. 9.

P. S. Chan, C. Y. Chow, and H. K. Tsang, "EDFA per-band gain-tilt compensation," in conference on Optical Amplifier and their Applications (Washington, DC, Optical Society of America, 2006).

H. A. Macleod, Thin film optical filter, 3rd ed., (Bristol & Philadelphia, Institute of Physics Publishing, 2001), Chap. 6.
[CrossRef]

See for example the mico-optic thin film filter (TFF) bandpass products at http://www.fibercom.com.tw.

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Figures (7)

Fig. 1.
Fig. 1.

Power fluctuation induced by dropping neighboring bands sharing a common EDFA.

Fig. 2.
Fig. 2.

Schematic diagram of dynamic gain tilt compensator (DGTC).

Fig. 3.
Fig. 3.

Block diagram of control circuit to produce the gain tilt compensation for controlling different bands.

Fig. 4.
Fig. 4.

Spectral response of Band A (red), Band B (blue) and Band C (green) with (a) spectrum from gain flattened reference and (b) spectrum passing through thin film filter.

Fig. 5.
Fig. 5.

Power fluctuation before and after dynamic gain tilt compensator (Left: Band B; Right: Band C) with respect to channels add and drop in Band A.

Fig. 6.
Fig. 6.

Bit-error-rate test of compensated and un-compensated 10Gbit/s PRBS 231-1 using feedforward compensation scheme. The inset shows eye diagrams of demultiplexed optical outputs.

Fig. 7.
Fig. 7.

Low loss implentation of DGTC using thin film filter based bandpass multiplexers.

Tables (1)

Tables Icon

Table 1. Power detected after EDFA under different filter responses.

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