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Journal of Lightwave Technology

Journal of Lightwave Technology


  • Vol. 27, Iss. 10 — May. 15, 2009
  • pp: 1402–1407

Bend-Free Optical Power Transfer Using Photonic Crystal Waveguide Arrays

Hamza Kurt

Journal of Lightwave Technology, Vol. 27, Issue 10, pp. 1402-1407 (2009)

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We report the study of 2-D photonic-crystal waveguide arrays (PCWA) composed of N identical waveguides coupled evanescently with each other. The coupling properties of the waveguide modes are investigated using coupled-mode theory and finite-difference time domain method. One straightforward application of such an analysis is to route input power from a central waveguide to side waveguides. As a result, appropriate designs of PCWAs may permit the realization of efficient, compact and novel devices. For instance, we show that power dividers, switchers, and Mach–Zehnder interferometers can be feasible using N=3 channels. On the other hand, N=5 waveguides can divide the input power by 1/4 at a distance of approximately 37.2 µm. Waveguide bends and Y-type junctions are used heavily for power transfer but they are prone to scattering losses; hence, lowering the transmission efficiency. They can be eliminated by means of PCWAs in the design of optical power distribution through photonic circuits.

© 2009 IEEE

Hamza Kurt, "Bend-Free Optical Power Transfer Using Photonic Crystal Waveguide Arrays," J. Lightwave Technol. 27, 1402-1407 (2009)

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