All-Fiber Integrated In-Line Semiconductor Photoconductor
All-Fiber Integrated In-Line Semiconductor Photoconductor
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DOI：
10.1109/jlt.2019.2913561
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发表时间：
2019-07
影响因子：
4.7
通讯作者：
Tilman A. K. Lühder;J. Plentz;J. Kobelke;K. Wondraczek;M. Schmidt
中科院分区：
文献类型：
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作者：
Tilman A. K. Lühder;J. Plentz;J. Kobelke;K. Wondraczek;M. Schmidt
在这里，我们提出了一个完全光纤集成的半导体线为基础的光电导体在可见光和近红外波长的光检测。该器件由平行于梯度折射率光纤单模纤芯的微米级锗丝电连接而成，在600 nm ~ 1300 nm波长范围内，时间响应小于20 ns，线性响应在10 nW ~ 20 μW之间，光功率可达2 mW。一个复杂的偏振依赖性已被揭示，显示了一个非直观的依赖波长和光功率，已被解释的一个发达的模型。由于其设计灵活性，我们的电连接半导体增强型光纤概念主要允许检测定义的光部分，而其余部分仍然可用于进一步诊断，从而定义了一种新型的全光纤光电光检测检测方案。
Here, we present a fully fiber-integrated semiconductor wire based photoconductor for the photodetection of light at visible and near-infrared wavelengths. The device consisting of an electrically connected micrometer sized germanium wire running parallel to a single-mode core of a gradient index fiber shows features such as temporal responses shorter than 20 ns and a linear response between 10 nW and 20 μW in the wavelength domain between 600 nm and 1300 nm, while light powers up to 2 mW can be measured. A sophisticated polarization dependency has been revealed, showing a non-intuitive dependence on wavelength and light power that has been explained by a developed model. Due to its design flexibility our electrically connected semiconductor enhanced fiber concept principally allows to detect a defined fraction of light, while the remaining part is still available for further diagnostics, thus defining a novel type of detection scheme for all-in-fiber optoelectronic light detection.