Multichannel SBS Slow Light Using Spectrally Sliced Incoherent Pumping

作者：Zhang, Bo^*; Yan, Lianshan; Zhang, Lin; Willner, Alan E.

来源：Journal of Lightwave Technology, 2008, 26(21-24): 3763-3769.

DOI：10.1109/JLT.2008.2005273

• Differential-phase-shift-keyed (DPSK)
• multichannel operation
• nonlinear fiber optics
• optical signal processing
• pattern dependence
• stimulated Brillouin scattering (SBS)
• slow light
• tunable delay line
• variable bit rate

We propose and experimentally demonstrate the use of an incoherent spectrally sliced amplified spontaneous emission (ASE) source as the pump for broadband stimulated Brillouin scattering-based slow light. Both 2.5-Gb/s on-off-keyed and differential-phase-shift-keyed signals are continuously delayed by as much as 170 ps, with less than 4-dB power penalty at 10(-9) bit error rate. A 2-GHz and a 4-GHz spectrally sliced pump are compared, emphasizing the need of optimizing the slow-light spectral-width according to the signal bandwidth. Furthermore, independent and simultaneous delay on multiple data channels with different modulation formats; within a single slow-light medium is proposed and experimentally demonstrated by using a periodically spectrally sliced ASE source. Our approach might be useful in future heterogeneous multiformat, multibit-rate, and multichannel fiber-optic communication systems and networks.

• 出版日期2008-11
• 单位西南交通大学