An ultra compact photonic crystal wavelength division demultiplexer using resonance cavities in a modified Y-branch structure

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

doi:10.1016/j.ijleo.2010.05.036

Cited by 126 publications

(36 citation statements)

References 27 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%

“…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. A year later, their combined Y-branch waveguide with the four resonant cavities improved the transmission efficiency at the expense of channel spacing [24]. Rakhshani and Birjandi [25] cascaded three PhC ring resonator-based channel drop filters with different refractive indices to realize a four-channel demultiplexer.…”

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: 83%

Section: Introductionmentioning

confidence: 99%

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

2015

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“…The material refractive index varies with temperature as an external parameter [8]. This variation is expressed as (1):…”

Section: Resultsmentioning

confidence: 99%

“…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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“…Therefore, it is necessary to make sensors with the high quality and precision. Different methods have been introduced to achieve this purpose [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. One of these technologies is the use of photonic crystal structures [3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Design and simulation of ultrasensitive nano-biosensor based on OFPC

2014

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Abstract:We designed and simulated a nano-biosensor to work in wet chemical optical processes for the determination and analysis of gaseous or liquid media. For this purpose, the optical properties of materials have been studied, and by creating the relationship between the refractive index of materials and other optical parameters, the measurement process was carried out. In this work, an optical filter based on the photonic crystal (OFPC) was used. By creating an active environment for the interaction between the substance and electromagnetic light, a situation to measure the properties of available substances in that active environment could be provided. Considering that the defect created in the OFPC may cause disruption in its operation, so the volume of the environment should be limited. Creation of defects in the structure of the nano-biosensors can increase the accuracy and quality of measurements; finally by rearranging the created defects, the output will be placed in the appropriate scope. The accuracy is increased by applying the finite difference time domain (FDTD) modeling approach in order to analyze the wave equations governing the structure of the photonics crystal.

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An ultra compact photonic crystal wavelength division demultiplexer using resonance cavities in a modified Y-branch structure

Cited by 126 publications

References 27 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

Design and simulation of ultrasensitive nano-biosensor based on OFPC

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