Novel architecture of WDM/OCDMA-PON based on SSFBG and wavelength re-modulation technology |
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| Authors: | GAN Chao-qin CAO Ya-nan |
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| Institution: | Key laboratory of Specialty Fiber Optics and Optical Access Networks, School of Communication and Information Engineering, Shanghai University, Shanghai 200072, P. R. China |
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| Abstract: | A novel architecture of wavelength-division multiplexing/optical code division multiplexing access-passive optical network
(WDM/OCDMA-PON) based on superstructure fiber Bragg grating (SSFBG) and wavelength re-modulation technology is proposed. In
this scheme, WDM is overlaid on OCDMA channel in a single network by virtue of a kind of SSFBG, and the total capacity of
hybrid PON can be extended by regulating the transmission power reasonably. Re-modulation technology is also a good method
to save wavelength-specific components at the optical network unit (ONU) and cost of wavelength management on the customer
side. In simulation system, 1.25 Gb/s up/downstream data are transported with good performance. In addition the crosstalk
penalties from adjacent wavelength channels (with the same OC) are found to be negligible in upstream and downstream transmissions. |
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| Keywords: | wavelength-division multiplexing (WDM) optical code division multiplexing occess (OCDMA) superstructure fiber Bragg grating (SSFBG) wavelength re-modulation WDM/OCDMA-PON |
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