Abstract

An all-optical multiplexing technique using wavelength division multiplexing (WDM)-time division multiplexing (TDM) conversion with an electroabsorption wavelength converter has been proposed and demonstrated. The effectiveness of this WDM-TDM conversion technique for various pulsewidth settings was experimentally investigated. The fluctuation of the signal performance, which was inevitably caused by the coherent crosstalk between adjacent pulses in the conventional optical time division multiplexing (OTDM) technique, were successfully suppressed,even in the case of wide pulse duration. High Q-factor performance has been maintained for a wide range of duty ration from 36% to 74%. By introducing this technique to the optical time division multiplexer, a highly stable and high-quality 40-Gb/s optical signal can be effectively produced without generating the short pulse or setting two tributaries at orthogonal polarization states,and without introducing high-speed electronics for signal multiplexing. The WDM-TDM conversion with an electroabsorption wavelength converter was extended to 60-Gb/s operation by using three 20-Gb/s tributaries. A clear eye opening was confirmed for a waveform after the WDM-TDM conversion of the 60-Gb/s signal.

© 2002 IEEE

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  1. T. Widdowson, A. Lord and D. J. Malyon, "Polarization guiding in ultralong distance soliton transmission", Electron. Lett., vol. 30, pp. 879-880, May <day>26</day>, 1994.
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  8. R. Schnabel, U. Hilbk, Th. Hermes, P. Meissner, Cv. Helmolt, K. Magari, F. Raub, W. Pieper, F. J. Westphal, R. Ludwig, L. Kuller and H. G. Weber, "Polarization insensitive frequency conversion of a 10-channel OFDM signal using four-wave-mixing in a semiconductor laser amplifier", IEEE Photon. Technol. Lett., vol. 6, pp. 56-58, Jan. 1994.
  9. N. Edagawa, M. Suzuki and S. Yamamoto, "Novel wavelength converter using an electroabsorption modulator", IEICE Trans. Electron., vol. E81-C, pp. 1251-1257, 1998.
  10. T. Otani, T. Miyazaki and S. Yamamoto, "40 Gbit/s signal transmission using optical 3R regenerator based on electroabsorption modulators", in Proc. 25th Optical Fiber Communication Conf., 2000, ThP3,. pp. 226-227.
  11. T. Ido, H. Sano, M. Suzuki, S. Tanaka and H. Inoue, "High-speed MQW electroabsorption optical modulators integrated with low loss waveguides", IEEE Photon. Technol. Lett., vol. 7, p. 170, Feb. 1995.
  12. H. Tanaka, M. Hayashi, T. Otani, K. Ohara and M. Suzuki, "60 Gb/s WDM-TDM transmultiplexing using an electro-absorption modulator", in Proc. 26th Optical Fiber Communication Conf., 2001, ME4-1.
  13. H. Tanaka, S. Takagi, M. Suzuki and Y. Matsushima, "Optical short pulse generation and data modulation by a single chip InGaAsP tandem-integrated electroabsorption modulator (TEAM)", Electron. Lett., vol. 29, pp. 1002-1003, May <day>27</day>, 1993.

Other (13)

T. Widdowson, A. Lord and D. J. Malyon, "Polarization guiding in ultralong distance soliton transmission", Electron. Lett., vol. 30, pp. 879-880, May <day>26</day>, 1994.

K. A. Williams, M. F. C. Stephens, D. Nesset, A. E. Kelly, R. V. Penty and M. J. Fice, "WDM-TDM transmultiplexing at 40 Gbit/s using an integrated DFB laser amplifier", in Proc. 25th Eur. Conf. Optical Communications , 1999, pp. 168-169.

T. Durhuus, C. Joergensen, B. Mikkelsen, R. J. S. Pedersen and K. E. Stukjear, "All optical wavelength conversion by SOA's in a Mach-Zehnder configuration", IEEE Photon. Technol. Lett., vol. 6, pp. 53-55, Jan. 1994.

F. Ratovelomanana, N. Vodjdani, A. Engard, G. Glastre, D. Rondi, R. Blondeau, C. Joergensen, T. Durhuus, B. Mikkelsen, K. E. Stubkjear, A. Jourdan and G. Soulage, "An all-optical wavelength-converter with semiconductor optical amplifiers monolithically integrated in an asymmetric passive Mach-Zehnder interferometer", IEEE Photon. Technol. Lett., vol. 7, pp. 992-994, Sept. 1995.

X. Pan, J. M. Wiesenfeld, J. S. Perino, T. L. Koch, G. Raybon, U. Koren, M. Chen, M. Young, B. I. Miller and C. A. Burrus, "Dynamic operation of a three-port, integrated Mach-Zehnder wavelength converter", IEEE Photon. Technol. Lett., vol. 7, pp. 995-997, Sept. 1995.

G. P. Agrawal, "Population pulsations and nondegenerate four-wave mixing in semiconductor lasers and amplifiers", J. Opt. Soc. Amer. B, vol. 5, pp. 147-158, 1988.

J. Zhou, N. Park, K. J. Vahara, M. A. Newkirk and B. I. Miller, "Four-wave mixing wavelength conversion efficiency in semiconductor traveling-wave amplifiers measured to 65 nm of wavelength shift", IEEE Photon. Technol. Lett., vol. 6, pp. 984-987, Aug. 1994.

R. Schnabel, U. Hilbk, Th. Hermes, P. Meissner, Cv. Helmolt, K. Magari, F. Raub, W. Pieper, F. J. Westphal, R. Ludwig, L. Kuller and H. G. Weber, "Polarization insensitive frequency conversion of a 10-channel OFDM signal using four-wave-mixing in a semiconductor laser amplifier", IEEE Photon. Technol. Lett., vol. 6, pp. 56-58, Jan. 1994.

N. Edagawa, M. Suzuki and S. Yamamoto, "Novel wavelength converter using an electroabsorption modulator", IEICE Trans. Electron., vol. E81-C, pp. 1251-1257, 1998.

T. Otani, T. Miyazaki and S. Yamamoto, "40 Gbit/s signal transmission using optical 3R regenerator based on electroabsorption modulators", in Proc. 25th Optical Fiber Communication Conf., 2000, ThP3,. pp. 226-227.

T. Ido, H. Sano, M. Suzuki, S. Tanaka and H. Inoue, "High-speed MQW electroabsorption optical modulators integrated with low loss waveguides", IEEE Photon. Technol. Lett., vol. 7, p. 170, Feb. 1995.

H. Tanaka, M. Hayashi, T. Otani, K. Ohara and M. Suzuki, "60 Gb/s WDM-TDM transmultiplexing using an electro-absorption modulator", in Proc. 26th Optical Fiber Communication Conf., 2001, ME4-1.

H. Tanaka, S. Takagi, M. Suzuki and Y. Matsushima, "Optical short pulse generation and data modulation by a single chip InGaAsP tandem-integrated electroabsorption modulator (TEAM)", Electron. Lett., vol. 29, pp. 1002-1003, May <day>27</day>, 1993.

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