Tunable optical filter with high performance based on 2D photonic crystal

Dangi, Milad Moradi; Aghdam, Anwar Mohammadzadeh; Karimzadeh, Rouhollah

doi:10.1007/s10825-023-02020-0

Cited by 10 publications

(2 citation statements)

References 49 publications

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“…Separate from T-shaped waveguide, Lbend and straight waveguides were described that are very practical in multigate functional design [11]. Because these structures consist of photonic bandgap (PBG) in their structures, have unique advantages as high operation, compact footprint and low power losses in different applications such as switches, [12], filters [13][14], optical splitters [15], waveguides [16] and de-multiplexers [17]. Today, utilization of PCs based devices for design of optical devices has been increased including OR, NOR [18][19][20], AND [21], NAND [22], XOR [23], and XNOR [24] logic gates, and all-optical full adder [25].…”

Section: Introductionmentioning

confidence: 99%

A High Selective and Q Factor 4-Channel All Optical Demultiplexer: Numerical and Analytical Evaluation

Vali‑Nasab,

Hasanvand,

Mir

et al. 2024

Preprint

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Photonic crystals (PCs) are a field that is very important and interested in the design of a wide range of devices to control electromagnetic waves in different frequency regimes. Here, We try to introduce an all-optical device with practical applications such as fast response and high accuracy that have very critical and benchmark development in optical devices for photonic integrated circuits. In this paper, a novel modified shape 4-channel demultiplexer based on 2D-PCs by using suitable ring resonators is proposed to control light. The presented configuration includes three parts such as a direct input waveguide, a ring resonator, and four indirect waveguides for outputs of optical waves. Numerical analysis is investigated based on finite difference time domain (FDTD) method to achieve a four-band demultiplexer that has the capability to control the electromagnetic waves. Numerical results show that not only average quality factor (Q) of the 2D-PCs demultiplexer is 3969.25, but also average cross-talking value is -30.38 dB, the average transmission coefficient (T) is 0.998 and the lowest and highest channel bandwidths are 0.3 and 0.6 nm, respectively. Also, the minimum and maximum distance between any two adjacent channels is 0.6 and 1.1 nm. The all optical photonic demultiplexer has a compact footprint and occupies an area of 302 µm² and its operation is in long wavelength region. Based on the abovementioned practical performance and results, the presented optical demultiplexer is highly accurate by using a robust and low power-area that can be nominated to use photonic integrated circuits (PIC).

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Section: Introductionmentioning

confidence: 99%

A High Selective and Q Factor 4-Channel All Optical Demultiplexer: Numerical and Analytical Evaluation

Vali‑Nasab,

Hasanvand,

Mir

et al. 2024

Preprint

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“…The works mentioned above are characterized by the use of a numerical methodology to analyze alloptical logic gates. AOLGs are available for various applications [21], [22], [23], for example, in digital processing of optical communications systems, and in manufacturing more complex devices for use in ultrafast photonic integrated circuits.…”

mentioning

confidence: 99%

2D FDTD Electromagnetic Simulation of an Ultracompact All Optical Logic Gate Based on 2D Photonic Crystal for Ultrafast Applications

de Almeida,

de Sousa,

Paschoal Jr.

et al. 2024

JCIS

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In this paper, the concept of photonic crystals (PhCs) is fundamental to designing and simulating an all-optical logic gate device. We proposed an all-optical switch composed of two-dimensional (2D) photonic crystal waveguides with a central photonic crystal ring resonator (PCRR). The new all-optical NAND logic gate device comprises two linear waveguides coupled to each other through a single compact PCRR. The plane wave expansion (PWE) and finite-difference time-domain (FDTD) methods are applied to simulate the properties of the system. The structure is implemented on the operational wavelength of 1700 nm on an air wafer of only 12 μm × 12 μm. Indeed, the simulation results show that the proposed all-optical NAND gate is a strong candidate for ultrafast photonic integrated circuits (PICs) for applications in optical communications, being advantageous with high transmitting power, with simple design, and without the use of optical amplifiers and nonlinear materials.

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Two-Dimensional Photonic Crystal-Based Filters Review

Prabha¹,

Robinson²

2023

Springer Tracts in Electrical and Electronics Engineering

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Tunable optical filter with high performance based on 2D photonic crystal

Cited by 10 publications

References 49 publications

A High Selective and Q Factor 4-Channel All Optical Demultiplexer: Numerical and Analytical Evaluation

A High Selective and Q Factor 4-Channel All Optical Demultiplexer: Numerical and Analytical Evaluation

2D FDTD Electromagnetic Simulation of an Ultracompact All Optical Logic Gate Based on 2D Photonic Crystal for Ultrafast Applications

Two-Dimensional Photonic Crystal-Based Filters Review

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