A General Characterizing Method for Ring Resonators Based on Low Coherence Measurement

A General Characterizing Method for Ring Resonators Based on Low Coherence Measurement
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基于低相干测量的环形谐振器通用表征方法

DOI:
10.1109/jlt.2011.2181821
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发表时间:
2012-03
影响因子:
4.7
通讯作者:
Jianyi Yang
Jianyi Yang
中科院分区:
工程技术2区
文献类型:
--
作者:
Di Chen;Yuxiao Zeng;Hongwei Lu;Jianyi Yang

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光滤波器是波分复用光纤通信网络中波长信道选择的关键器件。测量光学滤波器的内部物理参数对于分析新出现的更复杂的结构具有重要意义。提出了一种通用的、易于操作的光学低相干测量复杂滤波器结构物理参数的提取方法。利用数字滤波器的概念和z变换分析处理光学滤波器,我们可以用简单的线性方程建立干涉图峰值和传递函数系数之间的关系。这些方程可以用来导出传递函数的精确表达式,从而可以操纵物理参数。对于给定的滤波器结构,根据传递函数与物理参数之间的关系,可以提取物理参数。这在后制造过程中尤其有意义。
Optical filters are crucial devices for wavelength channel selecting in wavelength-division-multiplexed fiber-optic communication networks. Measuring the inner physical parameters of optical filters is significant for analyzing emerging new and more complex structures. This paper proposed a general and easy-to-operate method to extract physical parameters for complex filter structures with optical low-coherence measurement. By treating optical filters with digital filter concepts and z-transform analysis, we can build the relation between interferogram peak values and transfer function coefficients with brief linear equations. These equations can be used to derive the exact expression of transfer functions, which can manipulate the physical parameters. For a given filter structure, according to relations between transfer functions and physical parameters, the physical parameters could be extracted. This is especially meaningful in the postfabrication process.
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期刊: --
影响因子: --
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