Improved Transmission Waveguide Bends in Photonic Crystal

Tayeboun, Fatima; Naoum, R.; Tayeboun, H. M.; Hattori, Haroldo T.; Salah-Belkhodja, F.

doi:10.1163/1569393053305099

Cited by 7 publications

(4 citation statements)

References 27 publications

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“…Taking advantage of this confinement, this paper shows that the proposed waveguide also presents low losses on curves [11,16], and can be used to design efficient devices.…”

Section: Introductionmentioning

confidence: 90%

Optimization of the E-Plane Loaded Rectangular Waveguide for Low-Loss Propagation

Sánchez‐Escuderos¹,

Ferrando‐Bataller²,

Herranz³

et al. 2013

PIER

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Abstract-The insertion of vertical slabs in a metallic rectangular waveguide distorts the power distribution of the waveguide, producing new modes and modifying the existing ones. The resulting waveguide, known as E-plane loaded rectangular waveguide, is studied in this paper, focusing the attention on the TE-type modes in a symmetrical case. A quasi-TE 10 is found which may confine the energy in the central air region by suitably choosing the dielectric slabs' dimensions. An algorithm to optimize these dimensions is proposed in order to maximize the confinement of power in the air region and minimize the attenuation of the mode. This minimization is specially important at high frequencies, where the ohmic losses and the dielectric absorption become extremely high. This paper includes an example at THz frequencies and presents the design of several devices using the E-plane loaded rectangular waveguide.

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“…Taking advantage of this confinement, this paper shows that the proposed waveguide also presents low losses on curves [11,16], and can be used to design efficient devices.…”

Section: Introductionmentioning

confidence: 90%

Optimization of the E-Plane Loaded Rectangular Waveguide for Low-Loss Propagation

Sánchez‐Escuderos¹,

Ferrando‐Bataller²,

Herranz³

et al. 2013

PIER

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“…The numerical and experimental researches about 2D photonic crystal waveguides include photonic crystal waveguide bends and branches show an increase. [41][42][43][44][45] In this context, it is believed that the proposed structure will present a new contribution to the studies of waveguide bends and Y branches. We realize the theoret-ical investigation for our structure and obtain the results as shown in Fig.…”

Section: Photonic Crystal Y Branch Structurementioning

confidence: 96%

Photonic crystal structures: Beam deflector and beam router

Erdiven¹,

Tetik²,

Karadağ³

2018

Chinese Phys. B

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We investigate the optical characteristic, transverse magnetic (TM) and transverse electric (TE) band of twodimensional (2D) square lattice photonic crystal structure, which is composed of cylindrical air regions positioned at the corners of the square shaped dielectric rods. We obtain the wide photonic bandwidths between TM1-TM2 and TM3-TM4 bands. According to the results, we demonstrate the band gaps close to each other in the TM and TE frequencies for proposed structures. The resulting photonic gaps are formed to be about 8% at the higher frequencies of TE modes (TE4-TE5) and TM modes (TM7-TM8 and TM9-TM10). In addition, we examine isotropically generated structures for light guiding properties and observe that the light is directed in a particular route without using any deflection. We also investigate the self-collimation effect with the designed structure. The obtained results reveal the influences of the radius of cylindrical air holes and the angle between these air holes on absolute and partial photonic band gaps. Moreover, we observe the TM and TE band gaps that overlap. It is thought that the obtained band overlap will provide an easy way to produce the photonic crystals in practical applications like photonic insensitive waveguide. It is also believed that these results can provide the photonic crystal structures to work as a beam deflecting and beam router in integrated optical circuit applications.

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“…Two small slots close to the bends of the input waveguides optimize the transmission of light through the bends [16]. If there is no coupling of light into the cavities, light will continue to propagate into the bent waveguides without experiencing much reflection.…”

Section: Analysis Of the Phase Detectormentioning

confidence: 99%