Abstract
ABSTRACT A 160-channel DWDM system integrating a 1x4 25-GHz nonlinear Fourier Filter Flat-top (F 3 T) interleaver with four 1x40 100-GHz AWGs was investigated for 10 Gb/S PRBS laser and DWDM detuning transmission experiments and OC-192 network applications. Telcordia GR-1221 testing results were also discussed in this work. KEYWORDS: DWDM, INTERLEAVER, ARRAY WAVEGUIDE (AWG), GIGABIT ETHERNET, OC-192 AND OC-768, AND VCSEL. 1. INTRODUCTION To meet the explosive bandwidth demand and make optimum use of existing amplifier bandwidth, dense wavelength division multiplexing (DWDM) systems must offer increasing channel counts and/or modulation speeds. Several DWDM technologies may be able to meet some of the above demands, but each presents trade-offs in scalability, optical performance, reliability, and manufacturability. By hybridizing a nonlinear Fourier Filter Flat-top (F 3 T) interleaver with other technologies, such as AWGs, dielectric thin-film filters, and NWDM fused couplers, DWDM systems now can be upgraded into much narrower channel spacing and higher channel counts for very large capacity applications. [1][2 ][3][4][5][6]
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