1 July 2007 Improving the performance of a crosspoint-switch-based optical buffer by using a differential phase-shift keying payload
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Abstract
We experimentally demonstrate a novel decimal optical buffer scheme based on a multiloop configuration and a single switch element-an optical crosspoint switch (OXS) matrix. Its variable-delay range is of 1 to 999 times the basic delay unit. The buffer dynamic reconfiguration can be achieved at nanosecond switching speed. Our results show that by using a differential phase-shift keying (DPSK) payload in the buffer it can outperform an on-off keying payload with 4-dB sensitivity improvement owing to its alleviation of patterning-induced degradation, clearly validating DPSK as a promising modulation format to overcome nonlinear impairments and to extend number of hops in all-optical packet-switching network.
Nan Chi, Hong Liu, Minghao Li, Juan Jose Vegas Olmos, Ronelle Geldenhuys, Dexiu Huang, Siyuan Yu, "Improving the performance of a crosspoint-switch-based optical buffer by using a differential phase-shift keying payload," Optical Engineering 46(7), 075201 (1 July 2007). https://doi.org/10.1117/1.2751152
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