A 60° photonic crystal waveguide bend with improved transmission characteristics

• Autorzy: Moghaddam M. K. , Mirsalehi M. M. , Attari A. R.
• Języki publikacji: EN

Abstrakty

EN

In this paper, a 60° waveguide bend is designed in a two-dimensional (2D) photonic crystal (PC) slab to provide high transmission over a large bandwidth. We apply geometrical modification in the bend region to improve the transmission characteristics. This modification results in increasing the relative bandwidth from 6.5% to 25.7% of photonic band gap width. Using the effective refractive index, the structures designed are simulated by the 2D finite-difference time-domain (FDTD) method. As a specific application, we use the improved bend structure in a PC waveguide directional coupler and show that the drop output increases significantly.

Słowa kluczowe

EN

photonic crystal; waveguide; bend; bandwidth; slab structures

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2009
• Tom: Vol. 39, nr 2
• Strony: 307--317
• Opis fizyczny: bibligr. 29 poz.,

Twórcy

autor

Moghaddam M. K.

autor

Mirsalehi M. M.

autor

Attari A. R.

• Communications and Computer Research Center, Ferdowsi University of Mashhad, Mashhad, 91779, Iran

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