Slow light generation via stimulated Brillouin scattering in liquid-filled photonic crystal fibers

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• 作者：Yashar E. Monfared ; ^{y.monfared@dal.ca" class="auth_mail" title="E-mail the corresponding author} ; Sergey A. Ponomarenko
• 关键词：Photonic crystal fiber ; Slow light ; Stimulated Brillouin scattering ; Liquid-filled fiber ; Highly nonlinear fiber
• 刊名：Optik - International Journal for Light and Electron Optics
• 出版年：2016
• 出版时间：August 2016
• 年：2016
• 卷：127
• 期：15
• 页码：5800-5805
• 全文大小：770 K

文摘

We theoretically investigate slow light generation using stimulated Brillouin scattering (SBS) in a short highly nonlinear liquid-filled photonic crystal fiber (PCF). We study optical properties of hollow-core PCFs, filled with liquids exhibiting strong optical nonlinearities. We propose a design of carbon-disulfide-filled fiber with an effective area of 1.8 μm², nonlinear coefficient larger than 7300 W⁻¹ km⁻¹, confinement loss of 0.007 dB/km and total loss lower than 0.3 dB/m over the C-band. Relative to standard single mode fibers, the proposed fiber reduces power × fiber length requirement for a given gain (delay) by nearly three orders of magnitude (830 times). Furthermore, using just a 1-m long fiber, we demonstrate that pulses can be slowed down to c/50 with a required power level of only 25 mW. We show that our PCF is about 7 times more efficient than the previously reported fiber designs.