首页|Ultra-compact and broadband polarization-insensitive mode-order converting power splitter
Ultra-compact and broadband polarization-insensitive mode-order converting power splitter
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A polarization-insensitive mode-order converting power splitter using a pixelated region is presented and investigated in this paper.As TEo and TMo modes are injected into the input port,they are converted into TE1 and TM1 modes,which evenly come out from the two output ports.The finite-difference time-domain method and direct-binary-search optimization algo-rithm are utilized to optimize structural parameters of the pixelated region to attain small insertion loss,low crosstalk,wide bandwidth,excellent power uniformity,polarization-insensitive property,and compact size.Experimental results reveal that the insertion loss,crosstalk,and power uniformity of the fabricated device at 1550 nm are 0.57,-19.67,and 0.094 dB in the case of TE polarization,while in the TM polarization,the relevant insertion loss,crosstalk,and power uniformity are 0.57,-19.40,and 0.11 dB.Within a wavelength range from 1520 to 1600 nm,for the fabricated device working at TE polarization,the insertion loss,crosstalk,and power uniformity are lower than 1.39,-17.64,and 0.14 dB.In the case of TM polarization,we achieved an insertion loss,crosstalk,and power uniformity less than 1.23,-17.62,and 0.14 dB.
integrated opticsoptical waveguidepolarization-insensitive propertymode-order converting power splitter
陈浩琪、姚润葵、汪鹏君、符强、陈伟伟、戴世勋、孔德军、林健、金涛、李军、戴庭舸、杨建义
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Faculty of Electrical Engineering and Computer Science,Ningbo University,Ningbo 315211,China
College of Electrical and Electronic Engineering,Wenzhou University,Wenzhou 325035,China
College of Science and Technology,Ningbo University,Ningbo 315211,China
Laboratory of Infrared Materials and Devices,The Research Institute of Advanced Technologies,Ningbo University,Ningbo 315211,China
Department of Information Science and Electronics Engineering,Zhejiang University,Hangzhou 310027,China
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国家自然科学基金国家自然科学基金国家自然科学基金浙江省自然科学基金浙江省自然科学基金Youth Science and Technology Innovation Leading Talent Project of Ningbo宁波市自然科学基金宁波市自然科学基金K.C.Wong Magna Foundation of Ningbo University
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