Multichannel W3 Y-branch filter in a two dimensional triangular-lattice photonic crystal slab |
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| Institution: | 1. School of Opto-Electronic Information Science and Technology, Yantai University, Yantai 264005, China;2. School of Science, Minzu University of China, Bejiing 100081, China;3. Optical Physics Lab., Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China;1. Key Laboratory of Semiconductor Nanometer Composite Material of Ministry of Education, School of Physics and Electronic Engineering, Harbin Normal University, Harbin 150080, China;2. State Key Laboratory of Welding, Harbin Institute of Technology, Harbin 150001, China;1. Centro de Investigacion e Innovacion Tecnologica, IPN, Cerrada CECATI S/N Col. Sta. Catarina, Del. Azcapotzalco, 02250 México, D.F., Mexico;2. Universidad Autónoma del Carmen, Facultad de Ingeniería, C. 56, No. 4, 24180, Cd. del Carmen, Campeche, Mexico;1. Beijing Institute of Space Mechanics and Electricity, Beijing 100094, China;2. Aerospace Science & Industry Corporation Defense Technology R&T Center, Beijing 100854, China;3. Department of Automation Measurement and Control Engineering, Harbin Institute of Technology, Harbin 150001, China;4. Department of Physics, Harbin Institute of Technology, Harbin 150001, China |
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| Abstract: | We demonstrate the design, fabrication and characterization of a highly efficient multichannel W3 Y-branch filter in a two dimensional triangular-lattice photonic crystal slab. The coupling properties between high-order waveguide modes and fundamental resonant modes are investigated. By finely adjusting the size of resonant cavities, four higher-order mode channels with different output wavelengths are experimentally realized, which is in agreement with the theoretical simulations. The results show that this kind of filter may be useful in optical integrated circuits with high coupling and transmission efficiency. |
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| Keywords: | Photonic crystal Micro-cavity Filter |
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