Investigation of Optical-Switching Mechanism Using Guided Mode Resonances

Rehman, Atiq Ur; Khan, Yousuf; Irfan, Muhammad; Butt, Muhammad Ali

doi:10.3390/photonics10010013

Cited by 5 publications

(8 citation statements)

References 78 publications

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“…Moreover, the structure of the optical switch as presented in [25] and [26], uses 11 PhC-elements along with variable PhC cavity realized at the start of the PhCmesh to modulate the GMR-modes. Apart from these, a variable PhC cavity and the outcomes of the control signal on the output of the data signal and tunning of the GMR modes respectively are modeled in [27]. To achieve efficient optical switching, different PhC-elements-based structures are used.…”

Section: Discussionmentioning

confidence: 99%

“…55 µm, using cylindrical shaped-based PhCs-elements. Figure 2, imitates the design of the proposed 3D-optical switch using Niobium pentaoxide (Nb2O5) as the waveguiding material, with a refractive index of nwav = 2.2 [25], and is deposited on a substrate made-up of Silicon dioxide (SiO2) with a refractive index as nsub = 1.5 [27], along a cladding layer of the SiO2 placed topmost of the waveguiding layer. Moreover, is the representation of a strip model of the 3D-optical switch, based on which, the investigations are performed and two final models are computed in the end.…”

Section: Design Parametersmentioning

confidence: 99%

“…A 2D-FDTD design of an optical switch is investigated in [25], by means of the phenomenon of GMR with varying radius cavity implemented at the start of the PhC-mesh. Another approach uses GMR modes to achieve optical switching using the changeable radius cavity within the middle of the PhC-mesh [27,26]. An optical switch using two linear waveguides and a circular geometry of the PhCs is studied in [28], using temperature as the variable quantity for the switching mechanism in terms of a shift in the resonance wavelength.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A 3-Dimensional Modelling of the Optical Switch Based on Guided Mode Resonances in Photonic Crystals

Rehman¹,

Khan²,

Irfan³

et al. 2023

Preprint

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Optical switching is an essential part of photonic integrated circuits and the focus of research at the moment. In this research, an optical switch design working on the phenomenon of the guided-mode resonances in 3D photonic crystals-based structure is reported. The optical-switching mechanism is studied in a dielectric slab-waveguide-based structure operating in the near-infrared range in a telecom window of 1.55 µm. The mechanism is investigated by interference of two signals, i.e., the data signal and the control signal. The data signal is coupled into the optical structure and filtered utilizing guided-mode resonance, whereas, the control signal is index guided in the optical structure. The amplification or de-amplification of the data signal is controlled by tuning the spectral properties of the optical sources and structural parameters of the device. The parameters are optimized first using a single-cell model with periodic boundary conditions and later in a finite 3D-FDTD model of the device. The numerical design is computed in an open-source Finite Difference Time Domain simulation platform. Optical amplification in the range of 13.75 % is achieved in the data signal with a decrease in the linewidth up to 0.0079 µm and a quality factor of 114.58. The proposed device presents great potential in the field of photonic integrated circuits, biomedical technology, and programmable photonics.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Design Parametersmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A 3-Dimensional Modelling of the Optical Switch Based on Guided Mode Resonances in Photonic Crystals

Rehman¹,

Khan²,

Irfan³

et al. 2023

Preprint

View full text Add to dashboard Cite

show abstract

“…Recent development in the field of photonics and optical technology has opened new frontiers for researchers to explore their usage in various fields, such as integrated components [ 1 ], biomedical devices [ 2 ], sensing applications [ 3 ], industry-based 4.0 era [ 4 ], and many more [ 5 ]. Similarly, the burning issue of global warming is also being addressed using photonics technology in terms of design and the investigation of different photonics sensors to detect and calculate the number of different gases in the environment [ 6 ].…”

Section: Introductionmentioning

confidence: 99%

Plasmonic Perfect Absorber Utilizing Polyhexamethylene Biguanide Polymer for Carbon Dioxide Gas Sensing Application

et al. 2023

Self Cite

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In this paper a perfect absorber with a photonic crystal cavity (PhC-cavity) is numerically investigated for carbon dioxide (CO2) gas sensing application. Metallic structures in the form of silver are introduced for harnessing plasmonic effects to achieve perfect absorption. The sensor comprises a PhC-cavity, silver (Ag) stripes, and a host functional material—Polyhexamethylene biguanide polymer—deposited on the surface of the sensor. The PhC-cavity is implemented within the middle of the cell, helping to penetrate the EM waves into the sublayers of the structure. Therefore, corresponding to the concentration of the CO2 gas, as it increases, the refractive index of the host material decreases, causing a blue shift in the resonant wavelength and vice versa of the device. The sensor is used for the detection of 0–524 parts per million (ppm) concentration of the CO2 gas, with a maximum sensitivity of 17.32 pm (pico meter)/ppm achieved for a concentration of 366 ppm with a figure of merit (FOM) of 2.9 RIU−1. The four-layer device presents a straightforward and compact design that can be adopted in various sensing applications by using suitable host functional materials.

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“…Therefore, a 2D-FDTD design of an optical switch is investigated in [ 25 ], utilizing the phenomenon of GMR with varying radius cavities implemented at the start of the PhC-mesh. Another approach uses GMR modes to achieve optical switching using the changeable radius cavity within the middle of the PhC-mesh [ 26 , 27 ]. An optical switch using two linear waveguides and a circular geometry of the PhCs is studied in [ 28 ], using temperature as the variable quantity for the switching mechanism in terms of a shift in the resonance wavelength.…”

Section: Introductionmentioning

confidence: 99%

Three-Dimensional Modeling of the Optical Switch Based on Guided-Mode Resonances in Photonic Crystals

et al. 2023

Self Cite

View full text Add to dashboard Cite

Optical switching is an essential part of photonic integrated circuits and the focus of research at the moment. In this research, an optical switch design working on the phenomenon of guided-mode resonances in a 3D photonic-crystal-based structure is reported. The optical-switching mechanism is studied in a dielectric slab-waveguide-based structure operating in the near-infrared range in a telecom window of 1.55 µm. The mechanism is investigated via the interference of two signals, i.e., the data signal and the control signal. The data signal is coupled into the optical structure and filtered utilizing guided-mode resonance, whereas the control signal is index-guided in the optical structure. The amplification or de-amplification of the data signal is controlled by tuning the spectral properties of the optical sources and structural parameters of the device. The parameters are optimized first using a single-cell model with periodic boundary conditions and later in a finite 3D-FDTD model of the device. The numerical design is computed in an open-source Finite Difference Time Domain simulation platform. Optical amplification in the range of 13.75% is achieved in the data signal with a decrease in the linewidth up to 0.0079 µm, achieving a quality factor of 114.58. The proposed device presents great potential in the field of photonic integrated circuits, biomedical technology, and programmable photonics.

show abstract

Investigation of Optical-Switching Mechanism Using Guided Mode Resonances

Cited by 5 publications

References 78 publications

A 3-Dimensional Modelling of the Optical Switch Based on Guided Mode Resonances in Photonic Crystals

A 3-Dimensional Modelling of the Optical Switch Based on Guided Mode Resonances in Photonic Crystals

Plasmonic Perfect Absorber Utilizing Polyhexamethylene Biguanide Polymer for Carbon Dioxide Gas Sensing Application

Three-Dimensional Modeling of the Optical Switch Based on Guided-Mode Resonances in Photonic Crystals

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