Design and optimization of photonic crystal fiber with improved optical characteristics

Geerthana, S.; Raja, Anita; Sundar, D. Shanmuga

doi:10.1142/s0218863515500514

Cited by 22 publications

(6 citation statements)

References 17 publications

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“…To obtain the preferred logic functions and to confine the light inside the crystal, we can employ either line defects [27], point or surface defects [28]. Photonic crystals are the most excellent and appropriate structures used in the design and creation of all-optical devices, which includes PCF fibers [29], filters [30], multiplexers and demultiplexers [31], flip-flops [32], sensors [33], nano cavity [34], decoders [35], half-adders [36,37], couplers [38], encoders [39] and routers [40] etc.…”

Section: Introductionmentioning

confidence: 99%

2D- PhC based all optical AND, OR and EX-OR logic gates with high contrast ratio operating at C band

Geerthana¹,

SYEDAKBAR²,

Sridarshini³

et al. 2022

Laser Phys.

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In this article, photonic crystal (PhC) based all-optical logic gates, namely AND, OR and EX-OR have been explored and their characteristics are reported. Two-dimensional (2D) PhC based logic gates are proposed using a hexagonal lattice with T-shaped structure by incorporating line defects. The total size of the device is 84 µm2 and it operates at a wavelength of 1550 nm (C band). The designed optical logic gates are investigated using 2D finite difference time domain simulators by means of the plane wave expansion method. Parameters, such as response time and contrast ratio of the designed all-optic logic gates, are analyzed. The proposed AND, OR and EX-OR logic gates offer a contrast ratio of 14.48 dB, 14.57 dB and 12.9 dB respectively with, in order, response times of 0.159 ps, 0.168 ps and 0.1672 ps. The designed logic gates work in the third optical window as they are operating at the 1550 nm wavelength. To specify the performance of the proposed logic gates, their field distribution has been determined and is exhibited. The designed logic gates are suitable for use in photonic integrated circuits, all optical computing and optical sensing applications.

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Section: Introductionmentioning

confidence: 99%

2D- PhC based all optical AND, OR and EX-OR logic gates with high contrast ratio operating at C band

Geerthana¹,

SYEDAKBAR²,

Sridarshini³

et al. 2022

Laser Phys.

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“…Photonic crystal fiber such as circular PCFs (C-PCF) has proven to be a promising candidate for the same 2,8 . Designing modern photonic crystal and fabricating them is a real challenge 9 , thus designing a relatively simpler PCF both in terms of design components, materials, as well as fabrication process is an intensive optimization process and requiring a great deal of understanding 10 . The successful fabrication such as the one with hollow core silica Bragg fibers 11 proves that fabrication of our C-PCF architecture feasible.…”

Section: Introductionmentioning

confidence: 99%

Efficient Photonic Crystal Fiber Design for Higher OAM Modes with Low Loss Towards Next Generation THz Communication

Kuiri

Dutta

Sarkar

et al. 2021

Preprint

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A newer and efficient solid core with air holes and ring based circular photonic crystal fiber (C-PCF) design is proposed, developed, and studied. The C-PCF structure with a ring core and three layers of air holes is developed to communicate terahertz frequency of the range of 1 THz to 3 THz. Finite element method (FEM) is used to optimize the position, shape and dimensions of air holes and refractive index (RI) of material for the proposed PCF design and check the efficiency to support different orbital angular momentum (OAM) modes for communication. Our novel designed C-PCF supports multiple stable modes with mode purity above 0.9. Confinement loss is in the range of 10-12 dB/cm, highest effective mode area in the order of 1 mm2 is achieved in the investigated study for 3 THz transmission. The study observes that the performance of PCF is strongly dependent on RI of core and cladding.

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“…attention of researchers in the¯eld of optics and photonics because of their various applications in¯ber optic communications, 7,8¯b er lasers, 9 nonlinear optics, 10,11 terahertz photonics, 12,13 highly sensitive gas sensors, 14,15 supercontinuum generation, 16 ampli¯ers, 17 etc. [18][19][20][21] The unique linear and nonlinear properties of PCFs made them as ideal candidates for nonlinear-optic applications such as the wavelength conversion. As there are not always commercial lasers at suitable wavelengths or there are¯nancial limitations, it is possible to produce desired wavelengths through nonlinear phenomena in PCFs.…”

Section: Introductionmentioning

confidence: 99%

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

Pakarzadeh

Derakhshan

Hosseinabadi

2019

J. Nonlinear Optic. Phys. Mat.

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In this paper, wavelength conversion based on optofluidic infiltration of photonic crystal fibers (PCFs) is investigated to achieve the suitable wavelength over wide tunable range. For this purpose, two designs of PCFs (the so-called PCF1 and PCF2) with appropriate dispersion properties are simulated, and wavelength conversion via four-wave mixing process for pump wavelengths in both normal and anomalous dispersion regimes is studied. By changing the refractive index [Formula: see text] of the optical fluid infiltrated into the PCF air-holes and then varying the fiber dispersion properties, the converted wavelength region can be tuned. The results show that for the pump wavelength in the normal dispersion regime, the PCF1 infiltrated with [Formula: see text] and PCF2 infiltrated with [Formula: see text] exhibit the maximum wavelength shift. Moreover, the wavelength shift is much higher than that obtained in the anomalous dispersion regime and it can be further increased by increasing the input pump power.

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Design and optimization of photonic crystal fiber with improved optical characteristics

Cited by 22 publications

References 17 publications

2D- PhC based all optical AND, OR and EX-OR logic gates with high contrast ratio operating at C band

2D- PhC based all optical AND, OR and EX-OR logic gates with high contrast ratio operating at C band

Efficient Photonic Crystal Fiber Design for Higher OAM Modes with Low Loss Towards Next Generation THz Communication

Tunable wavelength conversion based on optofluidic infiltrated photonic crystal fibers

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