Numerical study on SBS slow light systems using a super-Gaussian filtered incoherent pump |
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| Authors: | Lianshan Yan Di Zheng Bin Luo Lin Zhang |
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| Institution: | a Center for Information Photonics & Communication, School of Information Science & Technology, Southwest Jiaotong University, Chengdu, Sichuan 610031, China
b Department of Electrical Engineering-Systems, University of Southern California, Los Angeles, CA 90089, USA |
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| Abstract: | We numerically investigate the performance improvement and its limitations using super-Gaussian filtered incoherent pumping in Stimulated Brillouin Scattering (SBS) slow light systems, especially for 2.5-Gb/s return-to-zero (RZ) OOK data streams. As compared to regular Gaussian filtering schemes, super-Gaussian filters can reduce the signal broadening without sacrificing the generated delay. On the other hand, although the figure-of-merits (FOM) in terms of the normalized delay and signal Q-factor products can be improved as well, additional sub-pulses may appear and subsequently the curve of FOM versus slow-light bandwidth exhibits a fluctuated behavior. |
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| Keywords: | Slow light Stimulated Brillouin Scattering Incoherent pump Optical filtering Fiber nonlinear optics |
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