Comparison of phase error sensitivities of all-optical discrete Fourier transforms for OFDM demultiplexing |
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| Authors: | S Schwarz C G Schaeffer A Rahim J Bruns K Petermann |
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| Institution: | 1. Chair of High-Frequency Engineering, Helmut Schmidt University, Holstenhofweg 85, 22043, Hamburg, Germany
2. Institute of High-Frequency Engineering, Berlin University of Technology, Einsteinufer 25, 10587, Berlin, Germany
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| Abstract: | The design of three different filter structures for the separation of 8 sub-channels in an optical OFDM system are compared. They are based on serial, serial-parallel and parallel filtering and can be realized as planar lightwave circuits. We investigate the tolerance towards phase errors in these structures using a Monte-Carlo simulation. |
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