Nonlinear-optical-loop-mirror-based wavelength conversion is studied in details. A set of two-phase-shifted Bragg gratings are introduced into the coverter, serving as a narrow band-pass filter to remove new frequencies generated by walk-off and to compensate the dispersion. Numerical simulations are performed to validate our method. The results show that the converted pulses after the filter are reshaped and, sometimes, even compressed.
© 2005 Chinese Optics Letters
(050.2770) Diffraction and gratings : Gratings
(060.2340) Fiber optics and optical communications : Fiber optics components
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(060.4510) Fiber optics and optical communications : Optical communications
(190.2620) Nonlinear optics : Harmonic generation and mixing
Min Zhang, Peida Ye, Fan Zhang, Yongpeng Zhao, and Jian Wang, "NOLM-based wavelength conversion with FBG band-pass filter for optical packet switching," Chin. Opt. Lett. 1, 3-5 (2003)