A high quality complete coupling 4-channel demultiplexer based on photonic crystal ring resonators

作者：Talebzadeh Reza^*; Soroosh Mohammad

来源：Optoelectronics and Advanced Materials-Rapid Communications, 2015, 9(1-2): 5-9.

• Quality factor
• Demultiplexer
• Photonic Crystal
• Ring Resonator
• Crosstalk
• Photonic Band Gap

In this paper, we propose a compact structure to realize demultiplexing operation for Dense Wavelength Division Multiplexing communication systems using ring resonators in photonic crystal structure. The cross section of the structure is 790 mu m(2) and desirable for integration based on popular planar technology. In order to improve power transmission coupling efficiency, we introduced phase matching condition between ring resonators and waveguides and the results showed 100% transmission efficiency. To obtain high quality factor we used interior layers of the rings as the mirrors and the quality factor as high as 4860 is achieved. The average pass bands of channels are near to 0.35nm and the channel spacing is approximately 2nm. The wavelengths of demultiplexer are 1307.7nm, 1309nm, 1311nm and1313nm respectively. The crosstalk is between -20.5dB and -42dB and the mean value of the crosstalk is -28.66dB.

• 出版日期2015-2