caa a22 4500 445858494 CHVBK 20180317145435.0 cr unu---uuuuu 170323e20111101xx s 000 0 eng 10.1007/s10946-011-9248-5 doi (NATIONALLICENCE)springer-10.1007/s10946-011-9248-5 Design of a thermal tunable photonic-crystal coupler [Elektronische Daten] [K. Meradi, F. Tayeboun, S. Ghezali, R. Naoum, H. Hattori] Wavelength division multiplexing (WDM) is a common technique used to increase the capacity of optical communication networks. In this technique, data coming from different sources are transmitted through the same optical fiber using different optical carriers. We study a thermally controlled tunable photonic-crystal optical coupler. The device is designed using a triangular lattice of air holes in an epitaxially layered structure (InGaAsP/InP). In this configuration, the input and output waveguides are separated from each other, in contrast to other devices that require a reflective grating and circulators or beam splitters. We use the two-dimensional finite-difference time-domain method (2D-FDTD) to analyze the performance of this device. After optimization the parameters of this device, we study the effects of changing the temperature. Not only has the position of the resonant peak changed linearly with the temperature, but the efficiency is also doubled. A linear regression of the spectral response gives a slope of dλ/dT = +0.1nm/°C in a temperature range of ΔT = 50°C for wavelengths close to 1550nm. These results show the possibility of tuning this contra-directional coupler using the thermo-optical effect. Springer Science+Business Media, Inc., 2011 photonic crystals nationallicence coupling of electromagnetic waves in parallel two-dimensional photonic crystals nationallicence contra-directional coupler nationallicence Meradi K. Telecommunications and Digital Signal Processing Laboratory Department of Electronics, University Djillali Liabes of Sidi-Bel-Abbes, 22000, Sidi-Bel-Abbes, Algeria aut Tayeboun F. Telecommunications and Digital Signal Processing Laboratory Department of Electronics, University Djillali Liabes of Sidi-Bel-Abbes, 22000, Sidi-Bel-Abbes, Algeria aut Ghezali S. Telecommunications and Digital Signal Processing Laboratory Department of Electronics, University Djillali Liabes of Sidi-Bel-Abbes, 22000, Sidi-Bel-Abbes, Algeria aut Naoum R. Telecommunications and Digital Signal Processing Laboratory Department of Electronics, University Djillali Liabes of Sidi-Bel-Abbes, 22000, Sidi-Bel-Abbes, Algeria aut Hattori H. School of Engineering and Information Technology, The University of New South Wales, 2600, Canberra ACT, Australia aut Journal of Russian Laser Research Springer US; http://www.springer-ny.com 32/6(2011-11-01), 572-578 1071-2836 32:6<572 2011 32 10946 https://doi.org/10.1007/s10946-011-9248-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10946-011-9248-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Meradi K. Telecommunications and Digital Signal Processing Laboratory Department of Electronics, University Djillali Liabes of Sidi-Bel-Abbes, 22000, Sidi-Bel-Abbes, Algeria aut NATIONALLICENCE 700 1- Tayeboun F. Telecommunications and Digital Signal Processing Laboratory Department of Electronics, University Djillali Liabes of Sidi-Bel-Abbes, 22000, Sidi-Bel-Abbes, Algeria aut NATIONALLICENCE 700 1- Ghezali S. Telecommunications and Digital Signal Processing Laboratory Department of Electronics, University Djillali Liabes of Sidi-Bel-Abbes, 22000, Sidi-Bel-Abbes, Algeria aut NATIONALLICENCE 700 1- Naoum R. Telecommunications and Digital Signal Processing Laboratory Department of Electronics, University Djillali Liabes of Sidi-Bel-Abbes, 22000, Sidi-Bel-Abbes, Algeria aut NATIONALLICENCE 700 1- Hattori H. School of Engineering and Information Technology, The University of New South Wales, 2600, Canberra ACT, Australia aut NATIONALLICENCE 773 0- Journal of Russian Laser Research Springer US; http://www.springer-ny.com 32/6(2011-11-01), 572-578 1071-2836 32:6<572 2011 32 10946 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer