Abstract

We experimentally demonstrated ultra-fast phase-transparent wavelength conversion using cascaded sum- and difference-frequency generation (cSFG-DFG) in linear-chirped periodically poled lithium niobate (PPLN). Error-free wavelength conversion of a 160-Gb/s return-to-zero differential phase-shift keying (RZ-DPSK) signal was successfully achieved. Thanks to the enhanced conversion bandwidth in the PPLN with linear-chirped periods, no optical equalizer was required to compensate the spectrum distortion after conversion, unlike a previous demonstration of 160-Gb/s RZ on-off keying (OOK) using fixed-period PPLN.

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References

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  1. A. Bogoni, X. Wu, I. Fazal, and A. E. Willner, “Photonic processing of 320 Gbits/s based on sum-/difference-frequency generation and pump depletion in a single PPLN waveguide,” Opt. Lett. 34(12), 1825–1827 (2009).
    [CrossRef] [PubMed]
  2. H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
    [CrossRef]
  3. H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “All Optical Tunable Wavelength Conversion at > 160 Gb/s,” in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper OTuI1.
  4. H. Hu, H. Suche, R. Ludwig, B. Huettl, C. Schmidt-Langhorst, R. Nouroozi, W. Sohler, and C. Schubert, “Polarization Insensitive All-Optical Wavelength Conversion of 320 Gb/s RZ-DQPSK Data Signals,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper OThS6.
  5. B. Huettl, A. Gual i Coca, H. Suche, R. Ludwig, C. Schmidt-Langhorst, H. G. Weber, W. Sohler, and C. Schubert, “320 Gbit/s DQPSK All-Optical Wavelength Conversion Using Periodically Poled LiNbO3,” in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper CThF1.
  6. J. Wang, J. Sun, X. Zhang, D. Huang, and M. M. Fejer, “Ultrafast all-optical three-input Boolean XOR operation for differential phase-shift keying signals using periodically poled lithium niobate,” Opt. Lett. 33(13), 1419–1421 (2008).
    [CrossRef] [PubMed]

2009 (1)

2008 (1)

2007 (1)

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
[CrossRef]

Bogoni, A.

Fazal, I.

Fejer, M. M.

Furukawa, H.

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
[CrossRef]

Huang, D.

Miyazaki, T.

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
[CrossRef]

Nirmalathas, A.

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
[CrossRef]

Shinada, S.

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
[CrossRef]

Sun, J.

Tsuboya, H.

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
[CrossRef]

Wada, N.

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
[CrossRef]

Wang, J.

Willner, A. E.

Wu, X.

Zhang, X.

IEEE Photon. Technol. Lett. (1)

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “Tunable All-Optical Wavelength Conversion of 160 Gbit/s RZ Optical Signals by Cascaded SFG-DFG Generation in PPLN Waveguide,” IEEE Photon. Technol. Lett. 19(6), 384–386 (2007).
[CrossRef]

Opt. Lett. (2)

Other (3)

H. Furukawa, A. Nirmalathas, N. Wada, S. Shinada, H. Tsuboya, and T. Miyazaki, “All Optical Tunable Wavelength Conversion at > 160 Gb/s,” in Optical Fiber Communication Conference and Exposition and The National Fiber Optic Engineers Conference, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper OTuI1.

H. Hu, H. Suche, R. Ludwig, B. Huettl, C. Schmidt-Langhorst, R. Nouroozi, W. Sohler, and C. Schubert, “Polarization Insensitive All-Optical Wavelength Conversion of 320 Gb/s RZ-DQPSK Data Signals,” in Optical Fiber Communication Conference, OSA Technical Digest (CD) (Optical Society of America, 2009), paper OThS6.

B. Huettl, A. Gual i Coca, H. Suche, R. Ludwig, C. Schmidt-Langhorst, H. G. Weber, W. Sohler, and C. Schubert, “320 Gbit/s DQPSK All-Optical Wavelength Conversion Using Periodically Poled LiNbO3,” in Conference on Lasers and Electro-Optics/Quantum Electronics and Laser Science Conference and Photonic Applications Systems Technologies, OSA Technical Digest Series (CD) (Optical Society of America, 2007), paper CThF1.

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Figures (8)

Fig. 1
Fig. 1

Operating principle of cSFG-DFG process in PPLN for phase-transparent wavelength conversion.

Fig. 2
Fig. 2

Accumulated optical spectra of SFG component when tuning the wavelength of one pump from 1542 nm to 1560 nm for (a) the linear-chirped PPLN, and (b) the fixed-period PPLN used in [2].

Fig. 3
Fig. 3

Experimental setup.

Fig. 4
Fig. 4

Optical spectrum after PPLN (resolution: 0.01nm).

Fig. 5
Fig. 5

Eye diagrams of the (a) input and (b) converted 160-Gb/s RZ-DPSK signals before phase de-modulation.

Fig. 6
Fig. 6

The measured BER curves of the input and converted 160-Gb/s RZ-DPSK signals after de-multiplexing to 10-Gb/s data.

Fig. 7
Fig. 7

The measured eye diagrams of the demodulated input 160-Gbit/s RZ-DPSK signal after de-multiplexing to 16 tributaries.

Fig. 8
Fig. 8

The measured eye diagrams of the demodulated converted 160-Gbit/s RZ-DPSK signal after de-multiplexing to 16 tributaries.

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