Chirped Microwave Pulse Generation Using an Integrated SiP Bragg Grating in a Sagnac Loop
Chirped Microwave Pulse Generation Using an Integrated SiP Bragg Grating in a Sagnac Loop
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DOI：
10.1109/lpt.2015.2444275
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发表时间：
2015-09
影响因子：
2.6
通讯作者：
Junjia Wang;R. Ashrafi;M. Rochette;Lawrence R. Chen
中科院分区：
文献类型：
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作者：
Junjia Wang;R. Ashrafi;M. Rochette;Lawrence R. Chen
我们展示了一个集成的光谱整形器的基础上，将一个啁啾布拉格光栅在硅光子学的啁啾微波脉冲的光子产生的Sagnac环。该技术是基于光谱成形结合线性频率到时间映射。通过调节输入光脉冲的中心波长，获得了中心频率为~10 ~~30 GHz，射频啁啾率为~20 GHz/ns的正负啁啾微波脉冲。
We demonstrate an integrated spectral shaper based on a Sagnac loop incorporating a chirped Bragg grating in silicon photonics for the photonic generation of chirped microwave pulses. The technique is based on optical spectral shaping combined with linear frequency-to-time mapping. By tuning the central wavelength of the input optical pulse, we obtain chirped microwave pulses with central frequencies ranging from ~10 GHz to ~30 GHz and an RF chirp rate of ~20 GHz/ns with both positive and negative signs.