Design, Simulation &amp;amp; Optimization of 2D Photonic Crystal Power Splitter

Ahmed, Rajib; Khan, Md. Masruf; Ahmmed, Rifat; Ahad, Abdul

doi:10.4236/opj.2013.32a002

Cited by 21 publications

(11 citation statements)

References 5 publications

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“…The performance of our proposed design is compared with previously reported power splitters with photonic crystal in the Table 2. As observed from the table, the structures having controlled or systematic hole (or rod for 2D photonic crystal) distribution, rather than random distribution as in this work, [19], [33] show higher average transmission than our structure. But for such systematic distribution, structures with much larger dimensions are required, to prevent sharp bending angles.…”

Section: F Comparison With Previously Reported Photonic Power Splitterssupporting

confidence: 62%

“…These passive devices may lend themselves to applications ranging from signal distribution [10], [11], feedback circuits [12], to power equalization [13], or even in-mode multiplexers [14]. Popular designs of photonic power splitters [15]- [18] include a symmetrical pattern of silica or uniform distribution of pores etched onto the silicon substrate for guiding the electromagnetic wave [14], [19]. Unfortunately, these simple, yet easily conceivable structures are bound to explore only a limited number of architectures.…”

Section: Introductionmentioning

confidence: 99%

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A 1.55 μm Wideband 1 × 2 Photonic Power Splitter With Arbitrary Ratio: Characterization and Forward Modeling

et al. 2022

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Chip-based photonic systems have undergone substantial progress over the last decade. However, the realization of photonic devices still depends largely on intuition-based trial-and-error methods, with a limited focus on characteristic analysis. In this work, we demonstrate an in-depth investigation of photonic power splitters by considering the transmission properties of 16,000 unique ultra-compact silicon-based structures engraved with SiO 2 , Al 2 O 3 , and Si 3 N 4 nanoholes. The characterization has been performed using finite-difference time-domain (FDTD) simulations for each dielectric material and both TE and TM polarizations at the fundamental modes in a wideband optical communication spectrum ranging from 1.45 to 1.65 µm. The corresponding transmissions, splitting ratio, and reflection loss were calculated, generating a dataset that can be used for both forward and inverse modeling purposes, using Machine Learning (ML) and Deep Learning (DL) algorithms. With an optimized hole radius of 35 nm, the proposed device area footprint of 2 µm × 2 µm is among the smallest with the best transmission reported to date. Si 3 N 4 holes show excellent transmission because they offer 90% transmittance in 96% of the data while exhibiting maximum fabrication tolerance. Forward modeling analysis, predicting the transmission properties, was performed using both Linear Model (LM) and Artificial Neural Network (ANN), where LM showed marginally better accuracy than ANN in foreseeing the transmittance. The proposed observation will aid in achieving robust, optimized optical power splitters with a wide range of splitting ratios in lesser time.INDEX TERMS Forward modeling, machine learning, optical power splitter, artificial neural network.

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Section: F Comparison With Previously Reported Photonic Power Splitterssupporting

confidence: 62%

Section: Introductionmentioning

confidence: 99%

A 1.55 μm Wideband 1 × 2 Photonic Power Splitter With Arbitrary Ratio: Characterization and Forward Modeling

et al. 2022

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“…PCFs consist of a core and cladding similar to a conventional optical fiber, but the cladding region in PCFs have a periodic air-holes which managing the light propagation [87,88]. Light propagating through the PCFs follows the modified TIR or photonic band gap (PBG) effects [89,90]. By modifying air holes geometries and altering the number of rings light propagation can be controlled.…”

Section: Advantages Of Pcf Over Prism and Conventional Optical Fibersmentioning

confidence: 99%

Photonic crystal fiber based plasmonic sensors

Rifat

Ahmed

Yetisen

et al. 2017

Sensors and Actuators B: Chemical

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The development of highly-sensitive miniaturized sensors that allow real-time quantification of analytes is highly desirable in medical diagnostics, veterinary testing, food safety, and environmental monitoring. Photonic Crystal Fiber Surface Plasmon Resonance (PCF SPR) has emerged as a highly-sensitive portable sensing technology for testing chemical and biological analytes. PCF SPR sensing combines the advantages of PCF technology and plasmonics to accurately control the evanescent field and light propagation properties in single or multimode configurations. This review discusses fundamentals and fabrication of fiber optic technologies incorporating plasmonic coatings to rationally design, optimize and construct PCF SPR sensors as compared to conventional SPR sensing. PCF SPR sensors with selective metal coatings of fibers, silver nanowires, slotted patterns, and D-shaped structures for internal and external microfluidic flows are reviewed. This review also includes potential applications of PCF SPR sensors, identifies perceived limitations, challenges to scaling up, and provides future directions for their commercial realization.

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“…Photonic crystals are composed of alternating layers of insulating materials. PBG, as one of their unique properties [23][24][25], is de ned as a speci c frequency (or wavelength) range, in which the propagation of electromagnetic waves is prohibited in any direction and can be controlled by different structural parameters such as lattice constant, dielectric constant of the material and rod radius [26][27][28][29]. Electromagnetic waves propagate inside the PBG when a defect is formed.…”

Section: Introductionmentioning

confidence: 99%

Improved Low Crosstalk, High Transmission and Quality Factor Eight Channel Demultiplexer Based on Photonic Crystal

Azadi

Mohammadi

Olyaee

et al. 2022

Preprint

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Due to the importance of all-optical demultiplexers (DEMUXs) in optical communication networks, this study aims to design and simulate a novel type of DEMUX using 2D photonic crystals (2D-PhCs). The proposed structure consists of one input waveguide and eight output channels considering linear and point defects. To design this DEMUX, silicon dielectric rods with the refractive index of 3.45 are employed in the air background, the radius of which is equal to R=0.21Ʌ (Ʌ = 0.522µm) where Ʌ is the lattice constant. The photonic band gap (PBG) and output spectrum of the structure are analyzed by the plane wave expansion (PWE) and finite-difference time-domain (FDTD) methods, respectively. The simulation results indicate the average quality factor and transmission efficiency are 3,602 and 98%, respectively, and inter-channel crosstalk ranges from -60.5 to -25.5 dB.

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Design, Simulation & Optimization of 2D Photonic Crystal Power Splitter

Cited by 21 publications

References 5 publications

A 1.55 μm Wideband 1 × 2 Photonic Power Splitter With Arbitrary Ratio: Characterization and Forward Modeling

A 1.55 μm Wideband 1 × 2 Photonic Power Splitter With Arbitrary Ratio: Characterization and Forward Modeling

Photonic crystal fiber based plasmonic sensors

Improved Low Crosstalk, High Transmission and Quality Factor Eight Channel Demultiplexer Based on Photonic Crystal

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