A novel proposal for DWDM demultiplexer design using modified-T photonic crystal structure

Rostami, Ali; Nazari, Fakhroddin; Alipour-Banaei, Hamed; Bahrami, Ali

doi:10.1016/j.photonics.2009.12.002

Cited by 112 publications

(28 citation statements)

References 21 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: 84%

“…By combining a T-branch waveguide with four resonant cavities, Rostami et al [23] obtained a structure capable of separating four channels with channel spacing as low as 1 nm. The transmission efficiency of the channels in their structure was not flat such that the minimum and maximum transmission efficiencies were 49 and 79 %, respectively.…”

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.

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Section: Simulation and Resultsmentioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

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

2015

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“…Based on this characteristic, many scientists focused their works to design and investigate various optical devices, such as optical filters [2][3][4], demultiplexers [5][6][7][8][9][10][11], circulators [12], power splitters [13], and switches [14].…”

Section: Introductionmentioning

confidence: 99%

Novel design of ring resonator based temperature sensor using photonics technology

et al. 2017

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Abstract:In the present paper, we study the transmission of the two-dimensional photonic crystal (PC) superellipse ring resonator. The fast growing applications of optomechanical systems lead to strong demands in new sensing mechanism in order to design the sensing elements to nanometer scale. The photonic crystal based resonator has been investigated as promising solutions because the band gap structure and resonator characteristics are extremely sensitive to the deformation and position shift of rod / cavity in PC resonators. This structure opens a single channel filter. The study is extended for tuning of channel filter's wavelength with a temperature of this structure. The transmission of the channel filter shows a red shift with temperature linearly. This wavelength shift of the channel filter is used for the sensor application. The sensitivity for the proposed structure is found to be 65.3 pm/℃. The outstanding sensing capability renders PC resonators as a promising optomechanical sensing element to be integrated into various transducers for temperature sensing applications.

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“…Some photonic waveguide based DEMUX designs are reported by researchers [1][2][3][4][5][6]. Because of their weak optical confinement, these components are not of interest of the researchers, whereas more compact designs are possible based on photonic crystal technology [7,8]. Photonic crystal (PhC) based DEMUX designs are superior in this respect [7][8][9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…Because of their weak optical confinement, these components are not of interest of the researchers, whereas more compact designs are possible based on photonic crystal technology [7,8]. Photonic crystal (PhC) based DEMUX designs are superior in this respect [7][8][9][10][11]. Various methods are proposed by researchers to provide the required frequency selectivity of the output channels.…”

Section: Introductionmentioning

confidence: 99%

Performance Enhancement of Cavity Assisted Photonic Crystal De-Multiplexerin Slow Light Regime

Samiei

Aghababaeian

2016

Journal of the Optical Society of Korea

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This study first proposes a new version of a photonic crystal based de-multiplexer operating under the slow light regime, secondly analyses the structure numerically to demonstrate de-multiplexing operation and finally studies the impact of light speed on the performance of the proposed structure. The operation wavelength is 1.55 µm. The study indicates that, by adjusting the speed of light, around 0.1C, in the main waveguide and in the output channels' waveguides, an enhancement in the performance of the de-multiplexer will be gained.

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A novel proposal for DWDM demultiplexer design using modified-T photonic crystal structure

Cited by 112 publications

References 21 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

Novel design of ring resonator based temperature sensor using photonics technology

Performance Enhancement of Cavity Assisted Photonic Crystal De-Multiplexerin Slow Light Regime

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