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MMI-based all-optical four-channel wavelength division demultiplexer

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Abstract

In this paper, we present a four-channel wavelength division demultiplexer which is designed by means of cascading three \(1\times 2\) multimode interference couplers. The proposed structure separates 980, 1310, 1490, and 1550 nm wavelengths into the appropriate ports. These wavelengths have been chosen for separation due to their importance in the optical communication systems. The performance of proposed demultiplexer has been optimized by choosing a suitable refractive index of the guiding region and geometrical parameters such as the width and length of coupler. Therefore, the total size of the demultiplexer is significantly reduced. Beam propagation method has been utilized in order to design and optimize the operation of the introduced structure. Simulation results indicate that the insertion losses of 980, 1310, 1490, and 1550 nm wavelengths are 0.52, 1.54, 0.64, and 1.4 dB, respectively.

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Authors and Affiliations

  1. Microelectronics Research Laboratory, Electrical and Electronics Engineering Department, Sahand University of Technology, Tabriz, Iran

    Hamed Khalilzadeh & Habib Badri Ghavifekr

  2. Optoelectronics and Nanophotonics Research Laboratory (ONRL), Electrical and Electronics Engineering Department, Sahand University of Technology, Tabriz, Iran

    Ali Bahrami

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  1. Hamed Khalilzadeh
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  2. Ali Bahrami
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  3. Habib Badri Ghavifekr
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Correspondence to Ali Bahrami.

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Khalilzadeh, H., Bahrami, A. & Badri Ghavifekr, H. MMI-based all-optical four-channel wavelength division demultiplexer. Photon Netw Commun 36, 217–223 (2018). https://doi.org/10.1007/s11107-018-0771-y

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  • DOI: https://doi.org/10.1007/s11107-018-0771-y

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