On-chip optical filters with designable characteristics based on an interferometer with embedded silicon photonic structures.
On-chip optical filters with designable characteristics based on an interferometer with embedded silicon photonic structures.
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DOI：
10.1364/ol.37.000665
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发表时间：
2012-01
期刊：
影响因子：
3.6
通讯作者：
S. Kocaman;M. Aras;N. Panoiu;Ming Lu;C. Wong
中科院分区：
文献类型：
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作者：
S. Kocaman;M. Aras;N. Panoiu;Ming Lu;C. Wong
我们使用基于负折射率光子晶体的马赫曾德干涉仪演示了近红外波长的芯片级平顶滤光片。在全三维数值模拟的支持下，我们基于设计带隙频率区域内和远离带隙频率区域的光子带图，通过实验演示了一种设计高通、低通、带通和带阻滤波器的新方法。我们进一步表明，我们的方法可用于设计对光谱的不同部分和不同偏振具有可调多级响应的滤波器。这种配置能够对集成光子电路的滤波器的带宽和抑制比进行确定性控制。
We demonstrate chip-scale flat-top filters at near-IR wavelengths using negative index photonic crystal based Mach-Zehnder interferometers. Supported by full three-dimensional numerical simulations, we experimentally demonstrate a new approach for engineering high-pass, low-pass, bandpass, and band-reject filters, based on designing the photonic band diagram both within the bandgap frequency region and away from it. We further show that our approach can be used to design filters that have tunable multilevel response for different sections of the spectrum and for different polarizations. This configuration enables deterministic control of the bandwidth and the rejection ratio of filters for integrated photonic circuits.