A tunable supercontinuum laser using a digital micromirror device

A tunable supercontinuum laser using a digital micromirror device
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使用数字微镜装置的可调谐超连续谱激光器

DOI:
10.1088/0957-0233/23/10/105204
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发表时间:
2012
影响因子:
2.4
通讯作者:
Wood T
Wood T
中科院分区:
工程技术3区
文献类型:
--
作者:
Wood T

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基于数字微镜设备(DMD)的光谱过滤系统使得为显微镜和内窥镜检查创建具有定制光谱轮廓的照明光成为可能。然而,由于DMD引起的面外偏差,这些系统以前需要复杂的光学器件,此外,DMD的衍射效应还没有得到很好的理解。我们构建了一个简化光学系统,给出了DMD衍射图的完整二维分析,并分析了系统光谱非线性的校正方法。实验结果与理论结果进行了比较,并证明了430 - 720 nm的全光谱覆盖范围,输出耦合到液体光导中,易于耦合到腹腔镜等手术设备中。
Spectral filtration systems based around digital micromirror devices (DMD) have made possible the creation of illumination light with custom spectral profiles for microscopy and endoscopy. However, due to the out-of-plane deviation caused by the DMD these systems have previously required complex optics, and in addition the diffraction effects of the DMD have not been well understood. We constructed a system to simplify the optics and present a full two-dimensional analysis of the diffraction patterns from the DMD together with an analysis of and method to correct the spectral nonlinearity of the system. A comparison between the experimental and theoretical results is provided and full spectral coverage between 430 and 720 nm was demonstrated with the output coupled into a liquid light guide for easy coupling into surgical devices such as laparoscopes.
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