Design of narrow band-pass filters based on the resonant-tunneling phenomenon in multi-core photonic crystal fibers.
Design of narrow band-pass filters based on the resonant-tunneling phenomenon in multi-core photonic crystal fibers.
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DOI：
10.1364/opex.13.010327
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发表时间：
2005-12
期刊：
影响因子：
3.8
通讯作者：
K. Saitoh;N. Florous;M. Koshiba;M. Skorobogatiy
中科院分区：
文献类型：
--
作者：
K. Saitoh;N. Florous;M. Koshiba;M. Skorobogatiy
介绍了一种基于多芯光子晶体光纤（PCF）共振隧穿现象的新型带通滤波器的工作原理，并进行了数值模拟。建议的PCF由两个相同的核心分开的第三个作为谐振器。通过对与谐振芯相关联的设计参数的精细调整，可以实现单个波长处的相位匹配，从而实现输入芯与输出芯之间的非常窄带的谐振定向耦合。基于有限元和光束传播算法的精确PCF分析确保了设计的验证。所提出的窄带通滤波器可用于各种应用，如全光纤和通/带阻滤波。
The objective of the present paper is to introduce and numerically demonstrate the operation of a novel band-pass filter based on the phenomenon of resonant tunneling inmulti-core photonic crystal fibers (PCFs). The proposed PCF consists of two identical cores separated by a third one which acts as a resonator. With a fine adjustment of the design parameters associated with the resonant-core, phase matching at a single wavelength can be achieved, thus enabling very narrow-band resonant directional coupling between the input and the output cores. The validation of the design is ensured with an accurate PCF analysis based on finite element and beam propagation algorithms. The proposed narrow band-pass filter can be employed in various applications such as all fiber and pass/bandstop filtering.