All-Optical Format Conversion of NRZ-OOK to RZ-OOK in a Silicon Nanowire Utilizing Either XPM or FWM and Resulting in a Receiver Sensitivity Gain of similar to 2.5 dB

作者：Astar W^*; Driscoll Jeffrey B; Liu Xiaoping; Dadap Jerry I; Green William M J; Vlasov Yurii A; Carter Gary M; Osgood Richard M Jr

来源：IEEE Journal of Selected Topics in Quantum Electronics, 2010, 16(1): 234-249.

DOI：10.1109/JSTQE.2009.2029872

• Cross-phase modulation
• format conversion
• four-wave mixing
• nonlinear optics
• silicon nanowires

All-optical format conversion of 10 Gb/s non-return-to-ZERO ON-OFF keying (NRZ-OOK) to RZ-OOK has been successfully achieved, for the first time to our knowledge, utilizing either cross-phase modulation (XPM) or four-wave mixing (FWM), in a Silicon (Si) nanowire. A 10(-9)-bit-error-rate (BER) receiver sensitivity gain of similar to 2.8 dB was obtained for converted RZ-OOK relative to NRZ-OOK using XPM, whereas a receiver sensitivity gain of similar to 2.5 dB was found for the FWM anti-Stokes RZ-OOK. Simultaneous wavelength and pulse format conversions were possible with FWM. No evidence of an error floor for BER <10(-10) was observed in either technique. The converted RZ-OOK signal was also correctly encoded and of the correct polarity.

• 出版日期2010-2
• 单位IBM