Photonic crystal ring resonator-based four-channel dense wavelength division multiplexing demultiplexer on silicon on insulator platform: design and analysis

Tupakula, Sreenivasulu; Bhowmick, Kaustav; Samad, Shafeek A.; Yadunath, Thamerassery Illam Rameswaran; Badrinarayana, T; Hegde, Gopalkrishna; Srinivas, T.

doi:10.1117/1.oe.57.4.046109

Cited by 15 publications

(5 citation statements)

References 24 publications

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“…PhCs are promising as a platform for compact photonic integrated circuits because of certain characteristics such as their ability to manipulate light at wavelength scale, substanti al size reduction, low loss energy, electromagnetic wave emission controllability, high performance speed, long life period, and the property of integrating in an optical circuit [10]. Various optical devices have been realized based on PhCs such as optical switches [11,12], filters [13,14], splitters [15,16], polarizers [17], mirrors [18], and demultiplexers [19][20][21][22][23][24][25].…”

Section: Introductionmentioning

confidence: 99%

Photonic demultiplexer based on electromagnetically induced transparency resonances

Mouadili¹,

Boudouti²,

Soltani³

et al. 2018

J. Phys. D: Appl. Phys.

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We give an analytical and experimental demonstration of the possibility to realize a simple photonic demultiplexer based on electromagnetically induced transparency resonances. The demultiplexer consists of a Y-shaped waveguide with an input line and two output lines. Each output line contains two grafted stubs at a given position far from the input line. We derive in closed form the expressions for a selective transfer of a single propagating mode through one line keeping the other line unaffected. We illustrate the analytical and numerical results by a simple experiment carried out using coaxial cables in the radio frequency domain.

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Section: Introductionmentioning

confidence: 99%

Photonic demultiplexer based on electromagnetically induced transparency resonances

Mouadili¹,

Boudouti²,

Soltani³

et al. 2018

J. Phys. D: Appl. Phys.

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“…In fact, each of the PhCRR arms acts separately in both through and drop ports [22][23]. Figure 2 shows a PhCRR designed in the PhC lattice.…”

Section: Structure Designmentioning

confidence: 99%

Highly sensitive refractive index sensor based on photonic crystal ring resonators nested in a Mach–Zehnder interferometer

Nohoji

Danaie²

2022

Opt Quant Electron

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Today, with the rapid development of photonics, optical sensors are being considered as e cient tools for detecting environmental variations and have been regarded as one of the most important elds in photonic research. In this study, we have proposed a two-dimensional photonic crystal (2D-PC) refractive index sensor using a combination of Mach-Zehnder interferometers and two ring resonators. Our goal is to increase the sensitivity and gure of merit (FOM) of the sensor, so that the output transmission spectrum can be considerably shifted by changing the refractive index of the simulated analytes. The proposed photonic crystal sensor consists of a hexagonal array of silicon rods on a SiO 2 substrate. The nite difference time domain (FDTD) method is used for the numerical simulation of the structure. In this regard, to validate the simulation results, two different commercial software have been used. The qualityfactor (Q-factor) and the sensitivity of the proposed structure are more than 1600 and 1700 nm / RIU, respectively, where RIU stands for the refractive index unit. In general, the structure has advantages such as low fabrication cost, high sensitivity to changes in refractive index and a high Q-factor.

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“…These results are obtained from FDTD computations where one lattice period in X and Y directions contain 20 and 35 spatial grids, respectively. The assymtrical channel dropping of the resonator is explained in detail based on eld distribution in the resonator [25]. It is observed that the resonant wavelengths will change if the design parameters inside, outside the resonator are changed and hence the considered structure can be treated as a tunable channel drop lter.…”

Section: Ring Resonator-based Channel Drop Filtermentioning

confidence: 99%

“…A 4-channel DWDM demultiplexer is theoretically demonstrated with detailed analysis. Airhole sizes inside the individual resonators were chosen as design parameters to select drop wavelengths and the effects of fabrication errors on the device performance is numerically analyzed [25]. Recently Balaji et al computationally demonstrated a novel 6-channel DWDM demultiplexer for ITU-T G.694.1 standard in the wavelength range of 1555 to 1560nm [28].…”

Section: Introductionmentioning

confidence: 99%

A 5-Channel DWDM Demultiplexer in C Band on Silicon Photonic Crystal Slab: Design and Numerical Analysis

Dhandrapati

Hegde

Srinivas

et al. 2021

Preprint

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In this work we propose a novel design of 5-channel DWDM demultiplexer and, numerical analysis of its optimal design parameters and device performance is presented. Photonic crystal hexagonal ring resonators of airholes on a silicon slab are used as channel drop filters. Wavelength controlling is achieved by fine tuning of coupling holes outside each ring resonator. For the proposed design, the resolved wavelengths are in the range of 1535 to 1539nm, where Erbium Doped Fiber Amplifiers are applicable. The average coupling efficiency and cross talk are found to be 72.4% and -18.31dB, respectively. Photonic bandgap computation is performed by using plane wave expansion method and spectral characteristics are obtained by applying 3D finite difference time domain method.

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Photonic crystal ring resonator-based four-channel dense wavelength division multiplexing demultiplexer on silicon on insulator platform: design and analysis

Cited by 15 publications

References 24 publications

Photonic demultiplexer based on electromagnetically induced transparency resonances

Photonic demultiplexer based on electromagnetically induced transparency resonances

Highly sensitive refractive index sensor based on photonic crystal ring resonators nested in a Mach–Zehnder interferometer

A 5-Channel DWDM Demultiplexer in C Band on Silicon Photonic Crystal Slab: Design and Numerical Analysis

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