160-Gb/s Polarization-Independent Optical Demultiplexing in 2-m Nonlinear Fiber

We report a new method for polarization-independent optical demultiplexing that uses cross-phase modulation (XPM) in nonlinear fiber. Using this technique, we achieved error-free 160- to 10-Gb/s demultiplexing in only 2 m of highly nonlinear bismuth-oxide fiber. The demultiplexing performance is not impaired when the input data polarization state is scrambled at high speed. This method does not require circular polarization states and is shown to work even in birefringent fibers. We present a simple theoretical model that predicts the conditions under which polarization-independent XPM can be achieved, and we show numerical simulations that agree well with experimental observations

[1]  E. Riccardi,et al.  Polarisation independent all-optical demultiplexing using four wave mixing in dispersion shifted fibre , 1999 .

[2]  T. Sakamoto,et al.  Polarization-insensitive all-optical time-division demultiplexing using a fiber four-wave mixer with a peak-holding optical phase-locked loop , 2004, IEEE Photonics Technology Letters.

[3]  J. W. Lou,et al.  80 Gb/s to 10 Gb/s polarization-insensitive demultiplexing with circularly polarized spun fiber in a two-wavelength nonlinear optical loop mirror , 2000, IEEE Photonics Technology Letters.

[4]  B.-E. Olsson,et al.  All-optical demultiplexing using fiber cross-phase modulation (XPM) and optical filtering , 2001, IEEE Photonics Technology Letters.

[5]  Toshio Morioka,et al.  100 Gbit/s to 6.3 Gbit/s demultiplexing experiment using polarisation-independent nonlinear optical loop mirror , 1994 .

[6]  Bengt-Erik Olsson,et al.  Polarization-independent all-optical AND-gate using randomly birefringent fiber in a nonlinear optical loop mirror , 1998 .

[7]  K. Kikuchi,et al.  Polarization-insensitive all-optical wavelength conversion using cross-phase modulation in twisted fiber and optical filtering , 2005, IEEE Photonics Technology Letters.

[8]  M. Karlsson,et al.  OTDM demultiplexer based on XPM-induced wavelength shifting in highly nonlinear fiber , 2003, IEEE Photonics Technology Letters.

[9]  Takuo Tanemura,et al.  Use of 1-m Bi2O3 nonlinear fiber for 160-Gbit/s optical time-division demultiplexing based on polarization rotation and a wavelength shift induced by cross-phase modulation. , 2005, Optics letters.

[10]  T. Murphy,et al.  All-optical 80-gb/s time-division demultiplexing using polarization-insensitive cross-phase modulation in photonic crystal fiber , 2006, IEEE Photonics Technology Letters.

[11]  K. Taira,et al.  Bismuth-based optical fiber with nonlinear coefficient of 1360 W'1km'1 , 2004 .