Pourbeyram Hamed, Nazemosadat Elham, Mafi Arash
Opt Express. 2015 Jun 1;23(11):14487-500. doi: 10.1364/OE.23.014487.
A short piece of commercial-grade SMF-28 optical fiber is pumped with a 680 ps high-peak power green laser. Red Stokes and blue anti-Stokes beams are generated spontaneously from vacuum noise in different modes in the fiber via intermodal four-wave mixing. Detailed experimental and theoretical analyses are performed and are in reasonable agreement. The large spectral shifts from the pump protect the Stokes and anti-Stokes from contamination by spontaneous Raman scattering noise. This work highlights the predictive power and limitations of a theoretical model to explain the experimental results for a process that relies on the amplification of quantum vacuum energy over more than 11 orders of magnitude.
一段商用级SMF - 28光纤用峰值功率为680皮秒的绿色激光泵浦。通过模间四波混频，在光纤的不同模式中，从真空噪声自发产生红色斯托克斯光束和蓝色反斯托克斯光束。进行了详细的实验和理论分析，两者吻合度合理。泵浦产生的大光谱偏移保护了斯托克斯和反斯托克斯光束不受自发拉曼散射噪声的污染。这项工作突出了一个理论模型在解释一个依赖量子真空能量超过11个数量级放大的过程的实验结果时的预测能力和局限性。
