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Engineering of multicolor spatial solitons with chirped-period quasi-phase-matching gratings in optical parametric amplification

机译:chi周期准相位匹配光栅在光参量放大中的多色空间孤子工程

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摘要

We demonstrate the excitation of solitons in a parametric amplifier with enhanced signal content through the use of a chirped-period quasi-phase-matching grating. This technique affords a low soliton threshold at the input end of a parametric amplifier, and the subsequent transformation to a desired soliton that exists at nonzero wave-vector mismatch through the use of a linearly chirped quasi-phase-matching grating. This approach has an advantage over direct excitation of solitons at nonzero wave-vector mismatch in uniform nonlinear materials and holds potential for improving the efficiency and mode quality of high-gain parametric amplifiers.
机译:通过使用a周期准相位匹配光栅,我们演示了具有增强信号内容的参量放大器中的孤子激发。该技术在参数放大器的输入端提供低孤子阈值,并通过使用线性chi准相位匹配光栅,将其转换为在非零波矢量失配时存在的所需孤子。这种方法相对于在均匀非线性材料中非零波矢失配时直接激发孤子具有优势,并且具有改善高增益参数放大器的效率和模式质量的潜力。

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