Supercontinuum Comb Generation Using Optical Pulse Synthesizer and Highly Nonlinear Dispersion-Shifted Fiber
Supercontinuum Comb Generation Using Optical Pulse Synthesizer and Highly Nonlinear Dispersion-Shifted Fiber
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DOI：
10.1143/jjap.48.09lf01
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发表时间：
2009-09
影响因子：
1.5
通讯作者：
Samuel Choi;N. Tamura;K. Kashiwagi;T. Shioda;Yosuke Tanaka;T. Kurokawa
中科院分区：
文献类型：
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作者：
Samuel Choi;N. Tamura;K. Kashiwagi;T. Shioda;Yosuke Tanaka;T. Kurokawa
我们提出了一种利用光脉冲合成器和高度非线性色散位移光纤的新型超连续统（SC）产生技术。光脉冲合成器使我们能够重塑种子脉冲，优化宽带SC的产生。通过在高度非线性光纤中传播合成的种子脉冲，成功地产生了25.0和12.5 GHz的SC梳。我们研究了种子脉冲的形状、峰值功率、重复频率和中心波长等条件对SC光谱带宽的影响。我们还使用生成的SC梳作为光源评估了来自迈克尔逊干涉仪的干涉信号波形。当峰值功率达到7.9 W时，高斯脉冲SC梳的干涉峰宽提高到35.5µm。数值模拟结果与实验结果基本吻合。通过仿真验证了高斯脉冲和sech2脉冲产生的SC梳的差异。
We propose a novel supercontinuum (SC) generation technology using an optical pulse synthesizer and highly nonlinear dispersion-shifted fiber. The optical pulse synthesizer enables us to reshape seed pulses optimized for broadband SC generation. 25.0 and 12.5 GHz SC combs were successfully generated by propagating synthesized seed pulses in the highly nonlinear fiber. We investigated how seed pulse conditions including shape, peak power, repetition rate, and center wavelength affect SC spectral bandwidth. We also evaluated interferometric signal waveforms from a Michelson interferometer using the generated SC comb as the light source. Interferometric peak width improved to 35.5 µm when peak power reached 7.9 W for the Gaussian pulse-based SC comb. Numerical simulation results almost agreed with experimental results. The difference between SC combs generated from Gaussian and sech2 pulses was confirmed by the simulations.