Abstract

We propose a novel all-optical format conversion from nonreturn-to-zero (NRZ) to return-to-zero (RZ) based on single semiconductor optical amplifier (SOA) and a detuning optical bandpass filter (OBF). By adopting the ultrafast SOA model associated with intraband mechanism, the 40Gb/s NRZ-to-RZ format conversion is successfully demonstrated with numerical simulation. We investigate the influence of the filter detuning, extinction ratio, conversion efficiency, output pulsewidth, and filter bandwidth. These simulation results confirm the feasibility of our scheme. The proposed scheme is robust and potential for applications in future optical networks.

© 2007 Optical Society of America

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References

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  1. D. Norte and A. E. Willner, "Multistage all-optical WDM-to-TDM-to-WDM and TDM-to-WDM-to-TDM data-format conversion and reconversion through 80 km of fiber and three EDFA’s," IEEE Photon. Technol. Lett. 7, 1354-1356 (1995).
    [CrossRef]
  2. C. W. Chow, C. S. Wong, and H. K. Tsang, "All-optical NRZ to RZ format and wavelength converter by dual-wavelength injection locking," Opt. Commun. 209, 329-334 (2002).
    [CrossRef]
  3. Y. C. Chang, Y. H. Lin, J. Chen, and G. R. Lin, "All-optical NRZ-to-PRZ format transformer with an injection-locked Fabry-Perot laser diode at unlasing condition," Opt. Express. 12, 4449-4456 (2004).
    [CrossRef] [PubMed]
  4. C. M. Huang, K. C. Yu, Y. C. Chang, and G. R. Lin, "10 Gbit/s all-optical NRZ-to-RZ data format in a dark-optical-comb injected semiconductor optical amplifier," OFC 2006, JThB33 (2006).
  5. A. Reale, P. Lugli, and S. Betti, "Format conversion of optical data using four-wave mixing in semiconductor optical amplifiers," IEEE J. Sel. Top. Quantum Electron. 7, 703-709 (2001).
    [CrossRef]
  6. L. Xu, B. C. Wang, V. Baby, I. Glesk, and P. R. Prucnal, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter," IEEE Photon. Technol. Lett. 15, 308-310 (2003).
    [CrossRef]
  7. W. Li, M. Chen, Y. Dong, and S. Xie, "All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror," IEEE Photon. Technol. Lett. 16, 203-205 (2004).
    [CrossRef]
  8. C. G. Lee, Y. J. Kim, C. S. Park, H. J. Lee, and C. S. Park, "Experimental demonstration of 10-gb/s data format conversions between NRZ and RZ using SOA-loop-mirror," J. Lightwave Technol. 23, 834-841 (2005).
    [CrossRef]
  9. C. H. Kwok and C. Lin, "Polarization-insensitive all-optical NRZ-to-RZ format conversion by spectral filtering of a cross phase modulation broadened signal spectrum," IEEE J. Sel. Tops. Quantum Electron. 12, 451-458 (2006).
    [CrossRef]
  10. J. Yu, G. K. Chang, J. Barry, and Y. Su, "40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer," Opt. Commun. 248, 419-422 (2005).
    [CrossRef]
  11. M. L. Nielsen, B. Lavigne, and B. Dagens, "Polarity-preserving SOA-based wavelength conversion at 40 Gbit/s using bandpass filtering," Electron. Lett. 39, 1334-1335 (2003).
    [CrossRef]
  12. S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
    [CrossRef] [PubMed]
  13. M. L. Nielsen, J. Mørk, R. Suzuki, J. Sakaguchi, and Y. Ueno, "Experimental and theoretical investigation of the impact of ultra-fast carrier dynamics on high-speed SOA-based all-optical switches," Opt. Express. 14, 331-347 (2006).
    [CrossRef] [PubMed]
  14. A. Mecozzi and J. Mørk, "Saturation induced by picosecond pulses in semiconductor optical amplifiers," J. Opt. Soc. Am. B 14, 761-769 (1997).
    [CrossRef]
  15. J. -T. Hsieh, P. -M. Gong, S. -L. Lee, and J. Wu, "Improved dynamic characteristics on four-wave mixing wavelength conversion in light-holding SOAs," IEEE J. Sel. Top. Quantum Electron. 10, 1187-1196 (2004).
    [CrossRef]

2006

C. H. Kwok and C. Lin, "Polarization-insensitive all-optical NRZ-to-RZ format conversion by spectral filtering of a cross phase modulation broadened signal spectrum," IEEE J. Sel. Tops. Quantum Electron. 12, 451-458 (2006).
[CrossRef]

S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
[CrossRef] [PubMed]

M. L. Nielsen, J. Mørk, R. Suzuki, J. Sakaguchi, and Y. Ueno, "Experimental and theoretical investigation of the impact of ultra-fast carrier dynamics on high-speed SOA-based all-optical switches," Opt. Express. 14, 331-347 (2006).
[CrossRef] [PubMed]

2005

C. G. Lee, Y. J. Kim, C. S. Park, H. J. Lee, and C. S. Park, "Experimental demonstration of 10-gb/s data format conversions between NRZ and RZ using SOA-loop-mirror," J. Lightwave Technol. 23, 834-841 (2005).
[CrossRef]

J. Yu, G. K. Chang, J. Barry, and Y. Su, "40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer," Opt. Commun. 248, 419-422 (2005).
[CrossRef]

2004

W. Li, M. Chen, Y. Dong, and S. Xie, "All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror," IEEE Photon. Technol. Lett. 16, 203-205 (2004).
[CrossRef]

Y. C. Chang, Y. H. Lin, J. Chen, and G. R. Lin, "All-optical NRZ-to-PRZ format transformer with an injection-locked Fabry-Perot laser diode at unlasing condition," Opt. Express. 12, 4449-4456 (2004).
[CrossRef] [PubMed]

J. -T. Hsieh, P. -M. Gong, S. -L. Lee, and J. Wu, "Improved dynamic characteristics on four-wave mixing wavelength conversion in light-holding SOAs," IEEE J. Sel. Top. Quantum Electron. 10, 1187-1196 (2004).
[CrossRef]

2003

L. Xu, B. C. Wang, V. Baby, I. Glesk, and P. R. Prucnal, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter," IEEE Photon. Technol. Lett. 15, 308-310 (2003).
[CrossRef]

M. L. Nielsen, B. Lavigne, and B. Dagens, "Polarity-preserving SOA-based wavelength conversion at 40 Gbit/s using bandpass filtering," Electron. Lett. 39, 1334-1335 (2003).
[CrossRef]

2002

C. W. Chow, C. S. Wong, and H. K. Tsang, "All-optical NRZ to RZ format and wavelength converter by dual-wavelength injection locking," Opt. Commun. 209, 329-334 (2002).
[CrossRef]

2001

A. Reale, P. Lugli, and S. Betti, "Format conversion of optical data using four-wave mixing in semiconductor optical amplifiers," IEEE J. Sel. Top. Quantum Electron. 7, 703-709 (2001).
[CrossRef]

1997

1995

D. Norte and A. E. Willner, "Multistage all-optical WDM-to-TDM-to-WDM and TDM-to-WDM-to-TDM data-format conversion and reconversion through 80 km of fiber and three EDFA’s," IEEE Photon. Technol. Lett. 7, 1354-1356 (1995).
[CrossRef]

Baby, V.

L. Xu, B. C. Wang, V. Baby, I. Glesk, and P. R. Prucnal, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter," IEEE Photon. Technol. Lett. 15, 308-310 (2003).
[CrossRef]

Barry, J.

J. Yu, G. K. Chang, J. Barry, and Y. Su, "40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer," Opt. Commun. 248, 419-422 (2005).
[CrossRef]

Betti, S.

A. Reale, P. Lugli, and S. Betti, "Format conversion of optical data using four-wave mixing in semiconductor optical amplifiers," IEEE J. Sel. Top. Quantum Electron. 7, 703-709 (2001).
[CrossRef]

Chang, G. K.

J. Yu, G. K. Chang, J. Barry, and Y. Su, "40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer," Opt. Commun. 248, 419-422 (2005).
[CrossRef]

Chang, Y. C.

Y. C. Chang, Y. H. Lin, J. Chen, and G. R. Lin, "All-optical NRZ-to-PRZ format transformer with an injection-locked Fabry-Perot laser diode at unlasing condition," Opt. Express. 12, 4449-4456 (2004).
[CrossRef] [PubMed]

Chen, J.

Y. C. Chang, Y. H. Lin, J. Chen, and G. R. Lin, "All-optical NRZ-to-PRZ format transformer with an injection-locked Fabry-Perot laser diode at unlasing condition," Opt. Express. 12, 4449-4456 (2004).
[CrossRef] [PubMed]

Chen, M.

W. Li, M. Chen, Y. Dong, and S. Xie, "All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror," IEEE Photon. Technol. Lett. 16, 203-205 (2004).
[CrossRef]

Chow, C. W.

C. W. Chow, C. S. Wong, and H. K. Tsang, "All-optical NRZ to RZ format and wavelength converter by dual-wavelength injection locking," Opt. Commun. 209, 329-334 (2002).
[CrossRef]

Dagens, B.

M. L. Nielsen, B. Lavigne, and B. Dagens, "Polarity-preserving SOA-based wavelength conversion at 40 Gbit/s using bandpass filtering," Electron. Lett. 39, 1334-1335 (2003).
[CrossRef]

Dong, J.

S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
[CrossRef] [PubMed]

Dong, Y.

W. Li, M. Chen, Y. Dong, and S. Xie, "All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror," IEEE Photon. Technol. Lett. 16, 203-205 (2004).
[CrossRef]

Fu, S.

S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
[CrossRef] [PubMed]

Glesk, I.

L. Xu, B. C. Wang, V. Baby, I. Glesk, and P. R. Prucnal, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter," IEEE Photon. Technol. Lett. 15, 308-310 (2003).
[CrossRef]

Gong, P. -M.

J. -T. Hsieh, P. -M. Gong, S. -L. Lee, and J. Wu, "Improved dynamic characteristics on four-wave mixing wavelength conversion in light-holding SOAs," IEEE J. Sel. Top. Quantum Electron. 10, 1187-1196 (2004).
[CrossRef]

Hsieh, J. -T.

J. -T. Hsieh, P. -M. Gong, S. -L. Lee, and J. Wu, "Improved dynamic characteristics on four-wave mixing wavelength conversion in light-holding SOAs," IEEE J. Sel. Top. Quantum Electron. 10, 1187-1196 (2004).
[CrossRef]

Huang, D.

S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
[CrossRef] [PubMed]

Kim, Y. J.

Kwok, C. H.

C. H. Kwok and C. Lin, "Polarization-insensitive all-optical NRZ-to-RZ format conversion by spectral filtering of a cross phase modulation broadened signal spectrum," IEEE J. Sel. Tops. Quantum Electron. 12, 451-458 (2006).
[CrossRef]

Lavigne, B.

M. L. Nielsen, B. Lavigne, and B. Dagens, "Polarity-preserving SOA-based wavelength conversion at 40 Gbit/s using bandpass filtering," Electron. Lett. 39, 1334-1335 (2003).
[CrossRef]

Lee, C. G.

Lee, H. J.

Lee, S. -L.

J. -T. Hsieh, P. -M. Gong, S. -L. Lee, and J. Wu, "Improved dynamic characteristics on four-wave mixing wavelength conversion in light-holding SOAs," IEEE J. Sel. Top. Quantum Electron. 10, 1187-1196 (2004).
[CrossRef]

Li, W.

W. Li, M. Chen, Y. Dong, and S. Xie, "All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror," IEEE Photon. Technol. Lett. 16, 203-205 (2004).
[CrossRef]

Lin, C.

C. H. Kwok and C. Lin, "Polarization-insensitive all-optical NRZ-to-RZ format conversion by spectral filtering of a cross phase modulation broadened signal spectrum," IEEE J. Sel. Tops. Quantum Electron. 12, 451-458 (2006).
[CrossRef]

Lin, G. R.

Y. C. Chang, Y. H. Lin, J. Chen, and G. R. Lin, "All-optical NRZ-to-PRZ format transformer with an injection-locked Fabry-Perot laser diode at unlasing condition," Opt. Express. 12, 4449-4456 (2004).
[CrossRef] [PubMed]

Lin, Y. H.

Y. C. Chang, Y. H. Lin, J. Chen, and G. R. Lin, "All-optical NRZ-to-PRZ format transformer with an injection-locked Fabry-Perot laser diode at unlasing condition," Opt. Express. 12, 4449-4456 (2004).
[CrossRef] [PubMed]

Lugli, P.

A. Reale, P. Lugli, and S. Betti, "Format conversion of optical data using four-wave mixing in semiconductor optical amplifiers," IEEE J. Sel. Top. Quantum Electron. 7, 703-709 (2001).
[CrossRef]

Mecozzi, A.

Mørk, J.

M. L. Nielsen, J. Mørk, R. Suzuki, J. Sakaguchi, and Y. Ueno, "Experimental and theoretical investigation of the impact of ultra-fast carrier dynamics on high-speed SOA-based all-optical switches," Opt. Express. 14, 331-347 (2006).
[CrossRef] [PubMed]

A. Mecozzi and J. Mørk, "Saturation induced by picosecond pulses in semiconductor optical amplifiers," J. Opt. Soc. Am. B 14, 761-769 (1997).
[CrossRef]

Nielsen, M. L.

M. L. Nielsen, J. Mørk, R. Suzuki, J. Sakaguchi, and Y. Ueno, "Experimental and theoretical investigation of the impact of ultra-fast carrier dynamics on high-speed SOA-based all-optical switches," Opt. Express. 14, 331-347 (2006).
[CrossRef] [PubMed]

M. L. Nielsen, B. Lavigne, and B. Dagens, "Polarity-preserving SOA-based wavelength conversion at 40 Gbit/s using bandpass filtering," Electron. Lett. 39, 1334-1335 (2003).
[CrossRef]

Norte, D.

D. Norte and A. E. Willner, "Multistage all-optical WDM-to-TDM-to-WDM and TDM-to-WDM-to-TDM data-format conversion and reconversion through 80 km of fiber and three EDFA’s," IEEE Photon. Technol. Lett. 7, 1354-1356 (1995).
[CrossRef]

Park, C. S.

Prucnal, P. R.

L. Xu, B. C. Wang, V. Baby, I. Glesk, and P. R. Prucnal, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter," IEEE Photon. Technol. Lett. 15, 308-310 (2003).
[CrossRef]

Reale, A.

A. Reale, P. Lugli, and S. Betti, "Format conversion of optical data using four-wave mixing in semiconductor optical amplifiers," IEEE J. Sel. Top. Quantum Electron. 7, 703-709 (2001).
[CrossRef]

Sakaguchi, J.

M. L. Nielsen, J. Mørk, R. Suzuki, J. Sakaguchi, and Y. Ueno, "Experimental and theoretical investigation of the impact of ultra-fast carrier dynamics on high-speed SOA-based all-optical switches," Opt. Express. 14, 331-347 (2006).
[CrossRef] [PubMed]

Shum, P.

S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
[CrossRef] [PubMed]

Su, Y.

J. Yu, G. K. Chang, J. Barry, and Y. Su, "40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer," Opt. Commun. 248, 419-422 (2005).
[CrossRef]

Suzuki, R.

M. L. Nielsen, J. Mørk, R. Suzuki, J. Sakaguchi, and Y. Ueno, "Experimental and theoretical investigation of the impact of ultra-fast carrier dynamics on high-speed SOA-based all-optical switches," Opt. Express. 14, 331-347 (2006).
[CrossRef] [PubMed]

Tsang, H. K.

C. W. Chow, C. S. Wong, and H. K. Tsang, "All-optical NRZ to RZ format and wavelength converter by dual-wavelength injection locking," Opt. Commun. 209, 329-334 (2002).
[CrossRef]

Ueno, Y.

M. L. Nielsen, J. Mørk, R. Suzuki, J. Sakaguchi, and Y. Ueno, "Experimental and theoretical investigation of the impact of ultra-fast carrier dynamics on high-speed SOA-based all-optical switches," Opt. Express. 14, 331-347 (2006).
[CrossRef] [PubMed]

Wang, B. C.

L. Xu, B. C. Wang, V. Baby, I. Glesk, and P. R. Prucnal, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter," IEEE Photon. Technol. Lett. 15, 308-310 (2003).
[CrossRef]

Willner, A. E.

D. Norte and A. E. Willner, "Multistage all-optical WDM-to-TDM-to-WDM and TDM-to-WDM-to-TDM data-format conversion and reconversion through 80 km of fiber and three EDFA’s," IEEE Photon. Technol. Lett. 7, 1354-1356 (1995).
[CrossRef]

Wong, C. S.

C. W. Chow, C. S. Wong, and H. K. Tsang, "All-optical NRZ to RZ format and wavelength converter by dual-wavelength injection locking," Opt. Commun. 209, 329-334 (2002).
[CrossRef]

Wu, J.

J. -T. Hsieh, P. -M. Gong, S. -L. Lee, and J. Wu, "Improved dynamic characteristics on four-wave mixing wavelength conversion in light-holding SOAs," IEEE J. Sel. Top. Quantum Electron. 10, 1187-1196 (2004).
[CrossRef]

Xie, S.

W. Li, M. Chen, Y. Dong, and S. Xie, "All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror," IEEE Photon. Technol. Lett. 16, 203-205 (2004).
[CrossRef]

Xu, L.

L. Xu, B. C. Wang, V. Baby, I. Glesk, and P. R. Prucnal, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter," IEEE Photon. Technol. Lett. 15, 308-310 (2003).
[CrossRef]

Yu, J.

J. Yu, G. K. Chang, J. Barry, and Y. Su, "40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer," Opt. Commun. 248, 419-422 (2005).
[CrossRef]

Zhang, L.

S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
[CrossRef] [PubMed]

Zhang, X.

S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
[CrossRef] [PubMed]

Electron. Lett.

M. L. Nielsen, B. Lavigne, and B. Dagens, "Polarity-preserving SOA-based wavelength conversion at 40 Gbit/s using bandpass filtering," Electron. Lett. 39, 1334-1335 (2003).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron.

J. -T. Hsieh, P. -M. Gong, S. -L. Lee, and J. Wu, "Improved dynamic characteristics on four-wave mixing wavelength conversion in light-holding SOAs," IEEE J. Sel. Top. Quantum Electron. 10, 1187-1196 (2004).
[CrossRef]

A. Reale, P. Lugli, and S. Betti, "Format conversion of optical data using four-wave mixing in semiconductor optical amplifiers," IEEE J. Sel. Top. Quantum Electron. 7, 703-709 (2001).
[CrossRef]

IEEE J. Sel. Tops. Quantum Electron.

C. H. Kwok and C. Lin, "Polarization-insensitive all-optical NRZ-to-RZ format conversion by spectral filtering of a cross phase modulation broadened signal spectrum," IEEE J. Sel. Tops. Quantum Electron. 12, 451-458 (2006).
[CrossRef]

IEEE Photon. Technol. Lett.

L. Xu, B. C. Wang, V. Baby, I. Glesk, and P. R. Prucnal, "All-optical data format conversion between RZ and NRZ based on a Mach-Zehnder interferometric wavelength converter," IEEE Photon. Technol. Lett. 15, 308-310 (2003).
[CrossRef]

W. Li, M. Chen, Y. Dong, and S. Xie, "All-optical format conversion from NRZ to CSRZ and between RZ and CSRZ using SOA-based fiber loop mirror," IEEE Photon. Technol. Lett. 16, 203-205 (2004).
[CrossRef]

D. Norte and A. E. Willner, "Multistage all-optical WDM-to-TDM-to-WDM and TDM-to-WDM-to-TDM data-format conversion and reconversion through 80 km of fiber and three EDFA’s," IEEE Photon. Technol. Lett. 7, 1354-1356 (1995).
[CrossRef]

J. Lightwave Technol.

J. Opt. Soc. Am. B

Opt. Commun.

C. W. Chow, C. S. Wong, and H. K. Tsang, "All-optical NRZ to RZ format and wavelength converter by dual-wavelength injection locking," Opt. Commun. 209, 329-334 (2002).
[CrossRef]

J. Yu, G. K. Chang, J. Barry, and Y. Su, "40 Gbit/s signal format conversion from NRZ to RZ using a Mach-Zehnder delay interferometer," Opt. Commun. 248, 419-422 (2005).
[CrossRef]

Opt. Express.

Y. C. Chang, Y. H. Lin, J. Chen, and G. R. Lin, "All-optical NRZ-to-PRZ format transformer with an injection-locked Fabry-Perot laser diode at unlasing condition," Opt. Express. 12, 4449-4456 (2004).
[CrossRef] [PubMed]

S. Fu, J. Dong, P. Shum, L. Zhang, X. Zhang, and D. Huang, "Experimental observations of inverted and non-inverted wavelength conversion based on transient cross phase modulation of SOA," Opt. Express. 14, 7587-7593 (2006).
[CrossRef] [PubMed]

M. L. Nielsen, J. Mørk, R. Suzuki, J. Sakaguchi, and Y. Ueno, "Experimental and theoretical investigation of the impact of ultra-fast carrier dynamics on high-speed SOA-based all-optical switches," Opt. Express. 14, 331-347 (2006).
[CrossRef] [PubMed]

Other

C. M. Huang, K. C. Yu, Y. C. Chang, and G. R. Lin, "10 Gbit/s all-optical NRZ-to-RZ data format in a dark-optical-comb injected semiconductor optical amplifier," OFC 2006, JThB33 (2006).

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Figures (6)

Fig. 1.
Fig. 1.

the operation principle of the NRZ to RZ format conversion based on the SOA and OBF.

Fig. 2.
Fig. 2.

Simulation results of the NRZ to RZ format conversion. (a1) and (b1) are the temporal waveforms of input control signal and original NRZ signal, respectively. (c1) and (d1) are the converted RZ waveforms when the detuning is −0.8nm and 0.8, respectively. (a2)–(d2) are the corresponding spectrum.

Fig. 3.
Fig. 3.

The extinction ratio and conversion efficiency vary as a function of the filter detuning.

Fig. 4.
Fig. 4.

The nonlinear patterning varies as a function of the control pulsewidth.

Fig. 5.
Fig. 5.

The converted pulsewidth varies as a function of the filter bandwidth.

Fig. 6.
Fig. 6.

The extinction ratio variation with input signal wavelength.

Tables (1)

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Table 1. Parameter List

Equations (8)

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

g 1 N λ = a 1 ( N N 0 ) a 2 ( λ λ N ) 2 + a 3 ( λ λ N ) 3
d P j , i dz = ( Γ g ̅ j , i α in ) P j , i , j = s , con
d N i ( t ) dt = ηI ewdL ( c 1 N i + c 2 N i 2 + c 3 N i 3 ) Γ dw [ j = s ,con g ̅ j , i P j , i h v j ]
Φ NL = 0 L ( 1 2 α N Γ g l + 1 2 α CH ε CH Γ g ̅ P tot ) dz
E sout ( t ) = P sout ( t ) exp [ i Φ NL ( t ) ]
H ( ω ) = exp [ 2 ln 2 ( ω Δω B 0 ) 2 ]
E out ( t ) = F 1 { H ( ω ) F [ E sout ( t ) ] }
P out ( t ) = E out ( t ) 2

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