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Nonlinear time-lens with improved power efficiency through a discrete multilevel pump

机译:通过离散多级泵提高功率效率的非线性时镜

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We report a novel, to the best of our knowledge, all-optical discrete multilevel time-lens (DM-TL) design based on cross-phase modulation (XPM). In this approach, the pump is synthesized such as the quadratic phase modulation is applied to the probe in constant-level time-bins with a maximum phase excursion of 2 pi. As a result, a considerable reduction in the required pump power is achieved in comparison to the conventional approach based on a parabolic pump. To illustrate the concept, the proposed DM-TL is here applied to the energy-preserving conversion of a continuous-wave (CW) signal into a train of pulses according to the theory of temporal Talbot array illuminators. We demonstrate CW-to-pulse conversion gains up to 12 at repetition rates exceeding 16 GHz, with a power saving with respect to the conventional parabolic TL that is more significant for increasing conversion gains. (C) 2020 Optical Society of America
机译:我们以我们的知识,基于交叉相位调制(XPM)的全部光学离散多级时间镜(DM-TL)设计提供了一部小说。 在这种方法中,合成泵,例如在恒定水平时箱中施加二次相位调制,其具有2 pi的最大相偏移。 结果,与基于抛物泵的传统方法相比,实现了所需泵功率的相当大的降低。 为了说明该概念,此处提出的DM-TL根据时间塔罗特阵列照明器理论,在此应用于连续波(CW)信号的能量 - 将连续波(CW)信号的能量转换为脉冲列车。 我们在重复率超过16GHz的重复速率下展示CW-to-脉冲转换增益,相对于传统的抛物线T1,对于增加转换增益的常规抛物线T1具有省电。 (c)2020美国光学学会

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