Dispersion and nonlinear characteristics of microstructured silica fibres with a thin suspended core surrounded by three, four or six air holes have been studied theoretically in the wavelength range 1–2 μm. It has been shown that, owing to strong fundamental mode confinement near the core, the Kerr nonlinearity coefficient can exceed the nonlinearity coefficient of standard telecom fibre SMF28e by two orders of magnitude. The large waveguide contribution allows for effective group velocity dispersion management. Estimates are presented that demonstrate the feasibility of using suspended core fibre exhibiting Kerr nonlinearity for generating non-classical light: a state with squeezed quantum fluctuations in one of the quadrature components of a cw laser signal at a wavelength near 1.55 μm.

中文翻译：

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细悬浮纤芯微结构石英光纤在宽参数范围内的色散和非线性特性的数值模拟

已经在理论上研究了在 1-2 μm 波长范围内具有被三个、四个或六个气孔包围的薄悬浮纤芯的微结构二氧化硅光纤的色散和非线性特性。研究表明，由于纤芯附近的强基模限制，克尔非线性系数可以超过标准电信光纤SMF28e的非线性系数两个数量级。大波导贡献允许有效的群速度色散管理。提出的估计值证明了使用具有克尔非线性的悬浮纤芯光纤产生非经典光的可行性：在波长接近 1.55 μm 的连续激光信号的正交分量之一中具有压缩量子涨落的状态。