Frequency-domain nonlinear optics in two-dimensionally patterned quasi-phase-matching media
Frequency-domain nonlinear optics in two-dimensionally patterned quasi-phase-matching media
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DOI：
10.1364/oe.24.015940
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发表时间：
2016-07-11
期刊：
影响因子：
3.8
通讯作者：
Keller, U.
中科院分区：
文献类型：
--
作者：
Phillips, C. R.;Mayer, B. W.;Keller, U.
在超短激光脉冲的放大和操作方面的进步已经在几个领域带来了革命。例如，用于产生高峰值功率激光的啁啾脉冲放大，功率可缩放放大技术，通过调制空间分散的激光脉冲进行脉冲整形，以及在准相位匹配的非线性晶体中进行有效的混频以访问新的光谱区域。在这项工作中，我们介绍并展示了一种新的非线性光学平台，它有可能将这些独立的功能(脉冲放大、频率传输和脉冲整形)结合到一个带宽和功率可扩展的单片器件中。该方法基于准相位匹配(QPM)光栅的二维(2D)图案化和涉及空间分散的激光脉冲的光学参数相互作用。我们的原理验证实验通过对几个周期的脉冲进行中红外光学参量啁啾脉冲放大，证明了这一技术。此外，我们还对这种2D-QPM器件进行了详细的理论和数值分析，以及它们的设计方法。(C)2016年度美国光学学会
Advances in the amplification and manipulation of ultrashort laser pulses have led to revolutions in several areas. Examples include chirped pulse amplification for generating high peak-power lasers, power-scalable amplification techniques, pulse shaping via modulation of spatially-dispersed laser pulses, and efficient frequency-mixing in quasi-phase-matched non-linear crystals to access new spectral regions. In this work, we introduce and demonstrate a new platform for nonlinear optics which has the potential to combine these separate functionalities (pulse amplification, frequency transfer, and pulse shaping) into a single monolithic device that is bandwidth-and power-scalable. The approach is based on two-dimensional (2D) patterning of quasi-phase-matching (QPM) gratings combined with optical parametric interactions involving spatially dispersed laser pulses. Our proof of principle experiment demonstrates this technique via mid-infrared optical parametric chirped pulse amplification of few-cycle pulses. Additionally, we present a detailed theoretical and numerical analysis of such 2D-QPM devices and how they can be designed. (C) 2016 Optical Society of America