A novel proposal for all optical PhC-based demultiplexers suitable for DWDM applications

Alipour-Banaei, Hamed; Mehdizadeh, Farhad; Hassangholizadeh-Kashtiban, Mahdi

doi:10.1007/s11082-013-9717-x

Cited by 53 publications

(15 citation statements)

References 15 publications

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“…In the proposed structure, the minimum and maximum bandwidth is 0.4 and 1 nm, respectively; therefore, the minimum and maximum quality factors will be 1549 and 3842, respectively. Compared with previous works, the proposed structure has better quality factor values than the works reported in [19][20][21][22][23][24][25][26][27][28]. Because the aforementioned reduced rods will cause destructive interference between the low amplitude resonant modes, which contributes for the lower mode cancelation mechanism [32] and as a result creates narrow band modes and high Q-factor values.…”

Section: Simulation and Resultsmentioning

confidence: 83%

“…Such that in Ref. [25,27] and [31] the minimum transmission efficiency is 30, 24 and 40 %, respectively. However, in the proposed structure, the minimum transmission efficiency is 94 %.…”

Section: Simulation and Resultsmentioning

confidence: 97%

“…Another drawback of this structure is its very low transmission efficiency. Alipour-Banaei et al [27] proposed a resonant defect structure for designing multichannel demultiplexers. In their eight-channel demultiplexer, the channel spacing was about 1 nm.…”

Section: Introductionmentioning

confidence: 99%

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A new proposal for eight-channel optical demultiplexer based on photonic crystal resonant cavities

2015

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In this paper, we used the novel defective resonant cavities to design an eight-channel photonic crystal demultiplexer. We showed that by choosing appropriate values for the width of the resonant cavity, the desired wavelengths can be separated. The proposed platform has a square lattice of dielectric rods immersed in air. The value of transmission efficiency for channels was obtained in 94−99 % range. In addition, the maximum value of crosstalk and average quality factor for channels were calculated -11.2 dB and 2200, respectively.

show abstract

Section: Simulation and Resultsmentioning

confidence: 83%

“…Such that in Ref. [25,27] and [31] the minimum transmission efficiency is 30, 24 and 40 %, respectively. However, in the proposed structure, the minimum transmission efficiency is 94 %.…”

Section: Simulation and Resultsmentioning

confidence: 97%

See 1 more Smart Citation

A new proposal for eight-channel optical demultiplexer based on photonic crystal resonant cavities

2015

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“…Crosstalk and footprint were obtained as −24.44 dB and 294.25 µm 2 , respectively. AlipourBanaei et al [18] proposed a resonant defect structure for designing an eight-channel demultiplexer, and the channel spacing was about 1 nm. The minimum transmission efficiency and the largest crosstalk were 40% and −8 dB, respectively.…”

Section: Introductionmentioning

confidence: 99%

Nine Channels Wavelength Division Demultiplexer Based Upon Two Dimensional Photonic Crystal

Ghezali¹,

Tayeboun²,

Meradi³

2018

PIER M

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Abstract-The article analyzes a nine-channel Wavelength Division Demultiplexer based on a twodimensional photonic crystal lattice. In the design of the device, defects and air holes are shifted in the resonant cavities: by changing characteristics such as radii of defects, distance between them and position of defects. A compact optical filter circuit is designed with a 1 nm channel spacing. The properties of these devices are investigated using finite-difference time-domain method. The resonant wavelengths of nine channel demultiplexers are 1481. 4, 1503.7, 1526.6, 1538.4, 1550.3, 1562.3, 1574.7, 1587.2 and 1612.9 nm. The value of transmission efficiency for channels was obtained in 79-96% range. In addition, the maximum value of crosstalk and average quality factor for channels were calculated −11.3 dB and 2000, respectively. The overall size of the structure is small (11.3 µm × 15.3 µm) which is suitable for photonic integrated circuits and optical communication network applications.

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“…The studies showed that PBG depends on the refractive indices of dielectric materials and the structural parameters of PhCs. The characteristics of PBG can be used for designing optical reflectors [13], optical band reject filters [14], optical filters [12], and optical demultiplexers [15,16].…”

Section: Introductionmentioning

confidence: 99%

Very compact photonic crystal resonant cavity for all optical filtering

2014

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In this paper, an all-optical filter is proposed which employs a resonant cavity localized between input and output waveguides as wavelength selecting part of the filter. We study the impact of different parameters on the filtering of the structure using plane wave expansion and finite difference time domain methods. We also study the effect of the output waveguide position on the performance of the filter and results show that the proper position of the output waveguide is straight to the center of the resonant cavity. The initial form of filter is capable of selecting the optical waves at k = 1,554.2 nm and the transmission efficiency of the filter is obtained about 100 %. The total footprint of the filter is \76 lm 2 . High transmission efficiency, simplicity of design and compact size are the most significant advantages of filter.

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A novel proposal for all optical PhC-based demultiplexers suitable for DWDM applications

Cited by 53 publications

References 15 publications

A new proposal for eight-channel optical demultiplexer based on photonic crystal resonant cavities

A new proposal for eight-channel optical demultiplexer based on photonic crystal resonant cavities

Nine Channels Wavelength Division Demultiplexer Based Upon Two Dimensional Photonic Crystal

Very compact photonic crystal resonant cavity for all optical filtering

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