Title :
Reconfigurable multi-wavelength optical correlator for header-based switching and routing
Author :
McGeehan, J. ; Hauer, M.C. ; Sahin, A.B. ; Willner, A.E.
Author_Institution :
Dept. of Electr. Eng. Syst., Univ. of Southern California, Los Angeles, CA, USA
Abstract :
We demonstrate novel reconfigurable optical correlation and header recognition that requires significantly fewer components. We use sampled fiber Bragg gratings as multi-channel delay lines, for which each fiber Bragg grating simultaneously "recognizes" one header bit in each of N WDM channels. A sampled FBG is an FBG that has a superstructure written on top of the grating, for which the Fourier transform produces a reflective time delay that is replicated at equal wavelength spacings to accommodate many WDM channels.
Keywords :
Bragg gratings; Fourier transform optics; optical correlation; optical delay lines; optical fibre communication; telecommunication channels; telecommunication network routing; wavelength division multiplexing; Fourier transform; WDM channels; equal wavelength spacings; fiber Bragg gratings; header recognition; header-based switching; multi-channel delay lines; multiple channels; reconfigurable multi-wavelength optical correlator; reconfigurable optical correlation; reflective time delay; sampled FBG; telecomm routing; Bragg gratings; Correlators; Delay effects; Delay lines; Fiber gratings; Optical pumping; Routing; Semiconductor optical amplifiers; Table lookup; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication Conference and Exhibit, 2002. OFC 2002
Print_ISBN :
1-55752-701-6
DOI :
10.1109/OFC.2002.1036350
