Abstract

Optical phase conjugation (OPC) of a polarization-multiplexed comb of 10x114Gb/s DP-QPSK signals has been demonstrated for the first time, occupying a spectral bandwidth of >1THz (~9nm). The nonlinear element employed for the OPC was highly nonlinear fiber (HNLF) optimized for the suppression of stimulated Brillouin scattering (SBS) and configured in a bi-directional loop offering polarization diversity. Pump power (each way about the loop) and input signal power to the OPC subsystem were optimized at 29.7dBm and + 3dBm respectively producing a Q2 penalty of ≤0.9dB over all conjugate wavelengths, polarizations and output OSNR (up to 20dB).

© 2014 Optical Society of America

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References

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  1. A. Yariv, D. Fekete, D. M. Pepper, “Compensation for channel dispersion by nonlinear optical phase conjugation,” Opt. Lett. 4(2), 52–54 (1979).
    [CrossRef] [PubMed]
  2. M. H. Chou, J. Hauden, M. A. Arbore, M. M. Fejer, “1.5- μm -band wavelength conversion based on difference-frequency generation in LiNbO3 waveguides with integrated coupling structures,” Opt. Lett. 23(13), 1004–1006 (1998).
    [CrossRef] [PubMed]
  3. R. Stolen, “Phase-matched-stimulated four-photo mixing in silica-fiber waveguides,” IEEE J. Quantum Electron. 11(3), 100–103 (1975).
    [CrossRef]
  4. G. P. Agrawal, “Four-wave mixing and phase conjugation in semiconductor laser media,” Opt. Lett. 12(4), 260–262 (1987).
    [CrossRef] [PubMed]
  5. F. Favre, D. Le Guen, “Four-wave mixing in traveling-wave semiconductor laser amplifiers,” IEEE J. Quantum Electron. 26(5), 858–864 (1990).
    [CrossRef]
  6. S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
    [CrossRef]
  7. S. Watanabe, S. Takeda, T. Chikama, “Interband wavelength conversion of 320 Gb/s (32×10 Gb/s) WDM signal using a polarization insensitive fiber four-wave mixer,” Proceedings of ECOC 3, 85–87 (1998).
  8. D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
    [CrossRef]
  9. S. Takasaka, M. Takahashi, Y. Mimura, M. Tadakuma, R. Sugizaki, T. Yagi, “Polarization insensitive arbitrary wavelength conversion in entire C-band using a PM-HNLF,” in Proceedings of ECOC (2010), Th.9.C.2.
  10. W. Forysiak, N. J. Doran, “Reduction of Gordon-Haus jitter in soliton transmission systems by optical phase conjugation,” J. Lightwave Technol. 13(5), 850–855 (1995).
    [CrossRef]
  11. M. Morshed, L. B. Du, B. Foo, M. D. Pelusi, A. J. Lowery, “Optical Phase Conjugation for Nonlinearity Compensation of 1.21-Tb/s Pol-Mux Coherent Optical OFDM,” in Proceedings of OECC (2013), PD3–4.
  12. J. B. Coles, B. P.-P. Kuo, N. Alic, S. Moro, C.-S. Bres, J. M. Chavez Boggio, P. A. Andrekson, M. Karlsson, S. Radic, “Bandwidth-efficient phase modulation techniques for Stimulated Brillouin Scattering suppression in fiber optic parametric amplifiers,” Opt. Express 18(17), 18138–18150 (2010).
    [CrossRef] [PubMed]
  13. K. Shiraki, M. Ohashi, M. Tateda, “SBS Threshold of a Fiber with a Brillouin Frequency Shift Distribution,” J. Lightwave Technol. 14(1), 50–57 (1996).
    [CrossRef]
  14. J. M. C. Boggio, J. D. Marconi, H. L. Fragnito, “Experimental and numerical investigation of the SBS threshold increase in an optical fiber by applying strain distributions,” J. Lightwave Technol. 23(11), 3808–3814 (2005).
    [CrossRef]
  15. K. K. Y. Wong, M. E. Marhic, K. Uesaka, L. G. Kazovsky, “Polarization-Independent Two-Pump Fiber-Optical Parametric Amplifier,” IEEE Photon. Technol. Lett. 14(7), 911–913 (2002).
    [CrossRef]
  16. L. Grüner-Nielsen et al.., “A silica based highly nonlinear fiber with improved threshold for stimulated Brillouin scattering,” in Proceedings of ECOC (2010), Tu.4.D3.
    [CrossRef]
  17. L. Grüner-Nielsen et al.., “Silica-Based Highly Nonlinear Fibers with a High SBS Threshold,” in Proceedings of IEEE Winter Topicals (2011), MD3.2.
    [CrossRef]
  18. I. D. Phillips, et al., “Exceeding the Nonlinear-Shannon Limit using Raman Laser Based Amplification and Optical Phase Conjugation” in Proceedings of OFC (2014), M3C.
    [CrossRef]

2010

2006

S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
[CrossRef]

2005

2002

K. K. Y. Wong, M. E. Marhic, K. Uesaka, L. G. Kazovsky, “Polarization-Independent Two-Pump Fiber-Optical Parametric Amplifier,” IEEE Photon. Technol. Lett. 14(7), 911–913 (2002).
[CrossRef]

1998

S. Watanabe, S. Takeda, T. Chikama, “Interband wavelength conversion of 320 Gb/s (32×10 Gb/s) WDM signal using a polarization insensitive fiber four-wave mixer,” Proceedings of ECOC 3, 85–87 (1998).

M. H. Chou, J. Hauden, M. A. Arbore, M. M. Fejer, “1.5- μm -band wavelength conversion based on difference-frequency generation in LiNbO3 waveguides with integrated coupling structures,” Opt. Lett. 23(13), 1004–1006 (1998).
[CrossRef] [PubMed]

1996

K. Shiraki, M. Ohashi, M. Tateda, “SBS Threshold of a Fiber with a Brillouin Frequency Shift Distribution,” J. Lightwave Technol. 14(1), 50–57 (1996).
[CrossRef]

1995

W. Forysiak, N. J. Doran, “Reduction of Gordon-Haus jitter in soliton transmission systems by optical phase conjugation,” J. Lightwave Technol. 13(5), 850–855 (1995).
[CrossRef]

1990

F. Favre, D. Le Guen, “Four-wave mixing in traveling-wave semiconductor laser amplifiers,” IEEE J. Quantum Electron. 26(5), 858–864 (1990).
[CrossRef]

1987

1979

1975

R. Stolen, “Phase-matched-stimulated four-photo mixing in silica-fiber waveguides,” IEEE J. Quantum Electron. 11(3), 100–103 (1975).
[CrossRef]

Agrawal, G. P.

Alic, N.

Andrekson, P. A.

Arbore, M. A.

Boggio, J. M. C.

Bouchoule, S.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Bres, C.-S.

Chavez Boggio, J. M.

Chikama, T.

S. Watanabe, S. Takeda, T. Chikama, “Interband wavelength conversion of 320 Gb/s (32×10 Gb/s) WDM signal using a polarization insensitive fiber four-wave mixer,” Proceedings of ECOC 3, 85–87 (1998).

Chou, M. H.

Coles, J. B.

de Waardt, H.

S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
[CrossRef]

Doran, N. J.

W. Forysiak, N. J. Doran, “Reduction of Gordon-Haus jitter in soliton transmission systems by optical phase conjugation,” J. Lightwave Technol. 13(5), 850–855 (1995).
[CrossRef]

Du, L. B.

M. Morshed, L. B. Du, B. Foo, M. D. Pelusi, A. J. Lowery, “Optical Phase Conjugation for Nonlinearity Compensation of 1.21-Tb/s Pol-Mux Coherent Optical OFDM,” in Proceedings of OECC (2013), PD3–4.

Ellis, A. D.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Favre, F.

F. Favre, D. Le Guen, “Four-wave mixing in traveling-wave semiconductor laser amplifiers,” IEEE J. Quantum Electron. 26(5), 858–864 (1990).
[CrossRef]

Fejer, M. M.

Fekete, D.

Foo, B.

M. Morshed, L. B. Du, B. Foo, M. D. Pelusi, A. J. Lowery, “Optical Phase Conjugation for Nonlinearity Compensation of 1.21-Tb/s Pol-Mux Coherent Optical OFDM,” in Proceedings of OECC (2013), PD3–4.

Forysiak, W.

W. Forysiak, N. J. Doran, “Reduction of Gordon-Haus jitter in soliton transmission systems by optical phase conjugation,” J. Lightwave Technol. 13(5), 850–855 (1995).
[CrossRef]

Fragnito, H. L.

Gilbertas, C.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Grüner-Nielsen, L.

L. Grüner-Nielsen et al.., “A silica based highly nonlinear fiber with improved threshold for stimulated Brillouin scattering,” in Proceedings of ECOC (2010), Tu.4.D3.
[CrossRef]

L. Grüner-Nielsen et al.., “Silica-Based Highly Nonlinear Fibers with a High SBS Threshold,” in Proceedings of IEEE Winter Topicals (2011), MD3.2.
[CrossRef]

Hauden, J.

Jansen, S. L.

S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
[CrossRef]

Karlsson, M.

Kashyap, R.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Kazovsky, L. G.

K. K. Y. Wong, M. E. Marhic, K. Uesaka, L. G. Kazovsky, “Polarization-Independent Two-Pump Fiber-Optical Parametric Amplifier,” IEEE Photon. Technol. Lett. 14(7), 911–913 (2002).
[CrossRef]

Kelly, A. E.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Khoe, G. D.

S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
[CrossRef]

Krummrich, P. M.

S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
[CrossRef]

Kuo, B. P.-P.

Le Guen, D.

F. Favre, D. Le Guen, “Four-wave mixing in traveling-wave semiconductor laser amplifiers,” IEEE J. Quantum Electron. 26(5), 858–864 (1990).
[CrossRef]

Lowery, A. J.

M. Morshed, L. B. Du, B. Foo, M. D. Pelusi, A. J. Lowery, “Optical Phase Conjugation for Nonlinearity Compensation of 1.21-Tb/s Pol-Mux Coherent Optical OFDM,” in Proceedings of OECC (2013), PD3–4.

Marconi, J. D.

Marhic, M. E.

K. K. Y. Wong, M. E. Marhic, K. Uesaka, L. G. Kazovsky, “Polarization-Independent Two-Pump Fiber-Optical Parametric Amplifier,” IEEE Photon. Technol. Lett. 14(7), 911–913 (2002).
[CrossRef]

Mimura, Y.

S. Takasaka, M. Takahashi, Y. Mimura, M. Tadakuma, R. Sugizaki, T. Yagi, “Polarization insensitive arbitrary wavelength conversion in entire C-band using a PM-HNLF,” in Proceedings of ECOC (2010), Th.9.C.2.

Moodie, D. G.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Moro, S.

Morshed, M.

M. Morshed, L. B. Du, B. Foo, M. D. Pelusi, A. J. Lowery, “Optical Phase Conjugation for Nonlinearity Compensation of 1.21-Tb/s Pol-Mux Coherent Optical OFDM,” in Proceedings of OECC (2013), PD3–4.

Nesset, D.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Ohashi, M.

K. Shiraki, M. Ohashi, M. Tateda, “SBS Threshold of a Fiber with a Brillouin Frequency Shift Distribution,” J. Lightwave Technol. 14(1), 50–57 (1996).
[CrossRef]

Pelusi, M. D.

M. Morshed, L. B. Du, B. Foo, M. D. Pelusi, A. J. Lowery, “Optical Phase Conjugation for Nonlinearity Compensation of 1.21-Tb/s Pol-Mux Coherent Optical OFDM,” in Proceedings of OECC (2013), PD3–4.

Pepper, D. M.

Radic, S.

Reed, J.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Shiraki, K.

K. Shiraki, M. Ohashi, M. Tateda, “SBS Threshold of a Fiber with a Brillouin Frequency Shift Distribution,” J. Lightwave Technol. 14(1), 50–57 (1996).
[CrossRef]

Spalter, S.

S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
[CrossRef]

Stephens, M. F. C.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Stolen, R.

R. Stolen, “Phase-matched-stimulated four-photo mixing in silica-fiber waveguides,” IEEE J. Quantum Electron. 11(3), 100–103 (1975).
[CrossRef]

Sugizaki, R.

S. Takasaka, M. Takahashi, Y. Mimura, M. Tadakuma, R. Sugizaki, T. Yagi, “Polarization insensitive arbitrary wavelength conversion in entire C-band using a PM-HNLF,” in Proceedings of ECOC (2010), Th.9.C.2.

Tadakuma, M.

S. Takasaka, M. Takahashi, Y. Mimura, M. Tadakuma, R. Sugizaki, T. Yagi, “Polarization insensitive arbitrary wavelength conversion in entire C-band using a PM-HNLF,” in Proceedings of ECOC (2010), Th.9.C.2.

Takahashi, M.

S. Takasaka, M. Takahashi, Y. Mimura, M. Tadakuma, R. Sugizaki, T. Yagi, “Polarization insensitive arbitrary wavelength conversion in entire C-band using a PM-HNLF,” in Proceedings of ECOC (2010), Th.9.C.2.

Takasaka, S.

S. Takasaka, M. Takahashi, Y. Mimura, M. Tadakuma, R. Sugizaki, T. Yagi, “Polarization insensitive arbitrary wavelength conversion in entire C-band using a PM-HNLF,” in Proceedings of ECOC (2010), Th.9.C.2.

Takeda, S.

S. Watanabe, S. Takeda, T. Chikama, “Interband wavelength conversion of 320 Gb/s (32×10 Gb/s) WDM signal using a polarization insensitive fiber four-wave mixer,” Proceedings of ECOC 3, 85–87 (1998).

Tateda, M.

K. Shiraki, M. Ohashi, M. Tateda, “SBS Threshold of a Fiber with a Brillouin Frequency Shift Distribution,” J. Lightwave Technol. 14(1), 50–57 (1996).
[CrossRef]

Uesaka, K.

K. K. Y. Wong, M. E. Marhic, K. Uesaka, L. G. Kazovsky, “Polarization-Independent Two-Pump Fiber-Optical Parametric Amplifier,” IEEE Photon. Technol. Lett. 14(7), 911–913 (2002).
[CrossRef]

van den Borne, D.

S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
[CrossRef]

Watanabe, S.

S. Watanabe, S. Takeda, T. Chikama, “Interband wavelength conversion of 320 Gb/s (32×10 Gb/s) WDM signal using a polarization insensitive fiber four-wave mixer,” Proceedings of ECOC 3, 85–87 (1998).

Williams, K. A.

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

Wong, K. K. Y.

K. K. Y. Wong, M. E. Marhic, K. Uesaka, L. G. Kazovsky, “Polarization-Independent Two-Pump Fiber-Optical Parametric Amplifier,” IEEE Photon. Technol. Lett. 14(7), 911–913 (2002).
[CrossRef]

Yagi, T.

S. Takasaka, M. Takahashi, Y. Mimura, M. Tadakuma, R. Sugizaki, T. Yagi, “Polarization insensitive arbitrary wavelength conversion in entire C-band using a PM-HNLF,” in Proceedings of ECOC (2010), Th.9.C.2.

Yariv, A.

IEEE J. Quantum Electron.

R. Stolen, “Phase-matched-stimulated four-photo mixing in silica-fiber waveguides,” IEEE J. Quantum Electron. 11(3), 100–103 (1975).
[CrossRef]

F. Favre, D. Le Guen, “Four-wave mixing in traveling-wave semiconductor laser amplifiers,” IEEE J. Quantum Electron. 26(5), 858–864 (1990).
[CrossRef]

IEEE J. Sel. Top. Quantum Electron.

S. L. Jansen, D. van den Borne, P. M. Krummrich, S. Spalter, G. D. Khoe, H. de Waardt, “Long-Haul DWDM transmission systems employing optical phase conjugation,” IEEE J. Sel. Top. Quantum Electron. 12(4), 505–520 (2006).
[CrossRef]

IEEE Photon. Technol. Lett.

K. K. Y. Wong, M. E. Marhic, K. Uesaka, L. G. Kazovsky, “Polarization-Independent Two-Pump Fiber-Optical Parametric Amplifier,” IEEE Photon. Technol. Lett. 14(7), 911–913 (2002).
[CrossRef]

J. Lightwave Technol.

W. Forysiak, N. J. Doran, “Reduction of Gordon-Haus jitter in soliton transmission systems by optical phase conjugation,” J. Lightwave Technol. 13(5), 850–855 (1995).
[CrossRef]

K. Shiraki, M. Ohashi, M. Tateda, “SBS Threshold of a Fiber with a Brillouin Frequency Shift Distribution,” J. Lightwave Technol. 14(1), 50–57 (1996).
[CrossRef]

J. M. C. Boggio, J. D. Marconi, H. L. Fragnito, “Experimental and numerical investigation of the SBS threshold increase in an optical fiber by applying strain distributions,” J. Lightwave Technol. 23(11), 3808–3814 (2005).
[CrossRef]

Opt. Express

Opt. Lett.

Proceedings of ECOC

S. Watanabe, S. Takeda, T. Chikama, “Interband wavelength conversion of 320 Gb/s (32×10 Gb/s) WDM signal using a polarization insensitive fiber four-wave mixer,” Proceedings of ECOC 3, 85–87 (1998).

Other

D. Nesset, M. F. C. Stephens, A. E. Kelly, C. Gilbertas, J. Reed, K. A. Williams, S. Bouchoule, R. Kashyap, A. D. Ellis, D. G. Moodie, “40 Gbit/s transmission over 186.6 km of installed fiber using mid-span spectral inversion for dispersion compensation,” in Proceedings of OFC (1999), 3, 118–120.
[CrossRef]

S. Takasaka, M. Takahashi, Y. Mimura, M. Tadakuma, R. Sugizaki, T. Yagi, “Polarization insensitive arbitrary wavelength conversion in entire C-band using a PM-HNLF,” in Proceedings of ECOC (2010), Th.9.C.2.

M. Morshed, L. B. Du, B. Foo, M. D. Pelusi, A. J. Lowery, “Optical Phase Conjugation for Nonlinearity Compensation of 1.21-Tb/s Pol-Mux Coherent Optical OFDM,” in Proceedings of OECC (2013), PD3–4.

L. Grüner-Nielsen et al.., “A silica based highly nonlinear fiber with improved threshold for stimulated Brillouin scattering,” in Proceedings of ECOC (2010), Tu.4.D3.
[CrossRef]

L. Grüner-Nielsen et al.., “Silica-Based Highly Nonlinear Fibers with a High SBS Threshold,” in Proceedings of IEEE Winter Topicals (2011), MD3.2.
[CrossRef]

I. D. Phillips, et al., “Exceeding the Nonlinear-Shannon Limit using Raman Laser Based Amplification and Optical Phase Conjugation” in Proceedings of OFC (2014), M3C.
[CrossRef]

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Figures (5)

Fig. 1
Fig. 1

Schematic of experimental set-up for polarization-diverse OPC.

Fig. 2
Fig. 2

(a) Spectrum at ‘R’ after PC2 adjusted for overall spectral symmetry (b) Spectrum at ‘R’ after PC2 adjusted for conjugate spectral flatness (c) Effect of input signal polarization on received Q2 for ten different positions of PC3 for channel 193.7THz at 20dB OSNR.

Fig. 3
Fig. 3

(a) Snapshot conjugate spectra at ‘R’ for + 6dBm/ch input signal power, illustrating FWM crosstalk levels as neighboring channels removed (b) The same with + 3dBm/ch input signal power (c) Power and delta change of crosstalk product at 193.8THz (1546.9nm) as channels removed for + 6dBm/ch and + 3dBm/ch cases (d) Optimization of pump and input signal power per channel for the conjugate at 193.7THz (1547.7nm).

Fig. 4
Fig. 4

Q2 (dB) vs OSNR (dB) for 10x114Gb/s back-to-back signals and their respective conjugates. Inset shows the Q2 penalty at three OSNR values from same data set.

Fig. 5
Fig. 5

Conjugate OSNR (dB) (measured post-OPC) vs input signal OSNR (dB) (measured pre-OPC) for four representative conjugates across the band. Inset shows OSNR penalty (dB) vs input signal OSNR (dB) for the same data set.

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