Abstract

Ultrafast all optical switching by use of pulse trapping across zero dispersion wavelength in optical fiber is demonstrated both experimentally and numerically for the first time. Only an arbitrary single pulse among four pulses with temporal separation of about 1.5 ps is successfully picked off with almost perfect extinction ratio. The spectrogram of the optical switching is directly observed using the X-FROG technique. The characteristics of all optical switching are analyzed numerically by the use of strict coupled nonlinear Schrödinger equations and the numerical results are in agreement with the experimental ones. It is interesting to note that although the other pulses are also overlapped with the soliton pulse, they are not trapped.

© 2002 Optical Society of America

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Electron. Lett. (2)

P. A. Andrekson, N. A. Olsson, and J. R. Simpson, �??16Gbit/s all-optical demultiplexing using four-wave mixing,�?? Electron. Lett. 27, 922-924 (1991)
[CrossRef]

K. J. Blow, N. J. Doran, and P. B. Nelson, �??Demonstration of the nonlinear fiber loop mirror as an ultrafast all-optical demultiplexer,�?? Electron. Lett. 26, 962-964 (1990)
[CrossRef]

IEEE J. Sel. Topics Quantum Electron. (1)

T. Okuno, M. Onishi, T. Kashiwada, S. Ishikawa, and M. Nishimura, �??Silica-based functional fibers with enhanced nonlinearity and their applications,�?? IEEE J. Select. Topics in Quantum Electron. 5, 1385-1391 (1999)

IEEE Photon. Technol. Lett. (4)

J. P. Sokoloff, P. R. Prucnal, I. Glesk, and M. Kane, �??A terahertz optical asymmetric demultiplexer (TOAD), �?? IEEE Photon. Technol. Lett. 5, 787-790 (1993)
[CrossRef]

S. Nakamura, Y. Ueno, and K. Tajima, �??Ultrafast (200-fs switching, 1.5 Tb/s demultiplexing) and highrepetition (10 GHz) operations of a polarization-discriminating symmetric Mach-Zehnder all optical switch,�?? IEEE Photon. Technol. Lett. 10, 1575-1577 (1998)
[CrossRef]

B. E. Olsson and D. J. Blumenthal, �??All-optical demultiplexing using fiber corss-phase modulation (XPM) and optical filtering,�?? IEEE Photon. Technol. Lett. 13, 875-877 (2001)
[CrossRef]

N. Nishizawa and T. Goto, �??Compact system of wavelength tunable femtosecond soliton pulse generation using optical fibers,�?? IEEE Photon. Technol. Lett. 11, 325-327 (1999).
[CrossRef]

Jpn. J. Appl. Phys. (1)

N. Nishizawa, R. Okamura, and T. Goto, �??Widely wavelength tunable ultrashort soliton pulse and antistokes pulse generation for wavelengths of 1.32-1.75 m,�?? Jpn. J. Appl. Phys. 39, L409-L411 (2000).
[CrossRef]

Opt. Express (3)

Opt. Lett. (3)

Rev. Sci. Instrum. (1)

R. Trebino, K. W. DeLong, D.N. Fittinghoff, J. N. Sweetser, M. A. Krumbugel, and B. A. Richman, �??Measuring ultrashort laser pulses in the time-frequency domain using frequency-resolved optical gating,�?? Rev. Sci. Instrum. 68, 3277-3295 (1997)
[CrossRef]

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