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首页> 外文期刊>Optics Letters >Distortion-free delivery of nanojoule femtosecond pulses from a Ti:sapphire laser through a hollow-core photonic crystal fiber
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Distortion-free delivery of nanojoule femtosecond pulses from a Ti:sapphire laser through a hollow-core photonic crystal fiber

机译:通过空心光子晶体光纤从Ti:蓝宝石激光器无畸变地传递毫微微秒的飞秒脉冲

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摘要

We demonstrate propagation of femtosecond pulses in the 800-nm range through a hollow-core photonic crystal fiber with preserved temporal and spectral profiles for pulse energies up to 4.6 nJ. Without the use of a prechirping unit, 170-fs pulses were transmitted essentially undistorted at 812 nm, near the zero-dispersion wavelength. Because of the air guidance of pulses, intensity-dependent nonlinear effects were minimal, with only 15% pulse broadening occurring at 350-mW average output power. This fiber thus is excellently suited for applications that require single-mode delivery of high-energy ultrashort pulses to the fiber output face such as, for example, miniaturized multiphoton microscopes.
机译:我们演示了飞秒脉冲通过空心光子晶体光纤在800 nm范围内的传播,该光纤保留了时间和光谱分布,脉冲能量高达4.6 nJ。在不使用预调频单元的情况下,在零色散波长附近,在812 nm处基本不失真地发送了170 fs脉冲。由于脉冲的空气引导,与强度有关的非线性效应极小,在350mW的平均输出功率下仅出现15%的脉冲展宽。因此,这种光纤非常适合要求将高能超短脉冲单模传输到光纤输出面的应用,例如小型化多光子显微镜。

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