Mid-infrared dual-rhombic air hole Ge 20 Sb 15 Se 65 chalcogenide photonic crystal fiber with high birefringence and high nonlinearity

Zou, Hui; Zhang, Youkun; Soliman, Abdel-Hamid

doi:10.1016/j.ceramint.2018.03.052

Cited by 34 publications

(8 citation statements)

References 49 publications

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“…In the simulation, the material coefficients including the refractive indices of the silica and air and the relative dielectric constant of the gold material are set after the simulation model is established. Then, a perfect matching layer (PML), whose thickness is 10

and refractive index is

+0.03, is added to the outermost edge of the gold film-coated V-DC-PCF so as to absorb the radiation energy [ 58 ]. Moreover, the grid sizes of the silica, air holes, and PML are set as

, and the grid size of the most central air hole coated with gold film is set as

.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band

Yuan

Qiu

et al. 2021

Sensors

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In this paper, a novel gold film-coated V-shape dual-core photonic crystal fiber (V-DC-PCF) polarization beam splitter (PBS) based on surface plasmon resonance effect is proposed. The coupling lengths of the X-polarization (X-pol) and Y-polarization (Y-pol) and the corresponding coupling length ratio of the proposed V-DC-PCF PBS without gold film and with gold film are compared. The fiber structure parameters and thickness of the gold film are optimized through investigating their effects on the coupling lengths and coupling length ratio. As the propagation length increases, the normalized output powers of the X-pol and Y-pol of the proposed V-DC-PCF PBS at the three wavelengths 1.610, 1.631, and 1.650 μm are demonstrated. The relationships between the extinction ratio (ER), insertion loss (IL) and wavelength for the three splitting lengths (SLs) 188, 185, and 182 μm are investigated. Finally, it is demonstrated that for the proposed V-DC-PCF PBS, the optimal SL is 188 μm, the ILs of the X-pol and Y-pol are less than 0.22 dB, and the splitting bandwidth (SB) can cover the E + S + C + L + U band. The proposed V-DC-PCF PBS has the ultra-short SL, ultra-wide SB, and ultra-low IL, so it is expected to have important applications in the laser, sensing, and dense wavelength division multiplexing systems.

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and refractive index is

+0.03, is added to the outermost edge of the gold film-coated V-DC-PCF so as to absorb the radiation energy [ 58 ]. Moreover, the grid sizes of the silica, air holes, and PML are set as

, and the grid size of the most central air hole coated with gold film is set as

.…”

Section: Simulation Results and Discussionmentioning

confidence: 99%

A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band

Yuan

Qiu

et al. 2021

Sensors

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show abstract

“…The polarization beam splitter (PBS) is an essential component for performing PDM, which can split or combine two beams with orthogonal polarization components. 9,10 In addition, PBSs are also widely used in other fields, such as optical fiber sensors, [11][12][13] optical metrology, 14 and fiber laser. [15][16][17] The earlier PBS was fabricated based on silica fiber.…”

Section: Introductionmentioning

confidence: 99%

Design of compact dual‐core terahertz polarization beam splitter with broad bandwidth

Zheng

Liu²,

Wang

et al. 2022

Micro & Optical Tech Letters

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A novel dual-core structure based on cyclic olefin copolymer (COC) photonic crystal fiber (PCF) is proposed for realizing Terahertz (THz) polarization beam splitting. The dependence of coupling length and structural parameters of the THz polarization beam splitter (TPBS) is analyzed. The confinement loss, effective material loss, and extinction ratio (ER) are examined. The numerical simulation results show, two orthogonal polarization modes are separated completely within a device length of only 45.16 mm owing to the different coupling length in x-and y-polarization directions. The maximum polarization ER of 107.7 dB is obtained at 0.54 THz. The bandwidth with ER greater than 20 dB reaches 0.02 THz. The proposed compact dual-core TPBS will find extensive applications in THz photonic systems.

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“…It is obvious from the above-alluded literature review that plenty of exciting base materials have been practiced in recent years to fine-tune the modal attributes of PCFs, involving fused silica [20,[28][29][30], graphene [31][32], GaP [33][34], tellurite [24][25]27], chalcogenide [38], Si 7 N 3 [19], GaAs [35], ZBLAN [36], TOPAS [39][40][41][42], As 2 S 3 and As 2 S 5 [37], etc. Particularly, among the substances enumerated above, fused silica is regarded as the most continually operated base material.…”

Section: Introductionmentioning

confidence: 99%

Tellurite-filled hexa-circular-shaped PCF with highly nonlinearity, birefringent and near-zero dispersion profile for optical communications

Sohag¹,

Kabir²

2022

JOR

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This manuscript focuses on devising a Tellurite-filled circular-timbered PCF that shows considerably highly birefringent and nonlinear characteristics. The impacts of numerous design parameters, such as birefringence (Br), nonlinear coefficients (NLC), confinement loss (CL), effective mode area (EMA), dispersion, numerical aperture (NA), etc. of the fiber are extensively inspected employing the commercially accessible and simulation- friendly COMSOL Software. Besides, the pertinent modal properties of the modeled fiber are rigorously characterized by operating the full-vector finite element method (FEM) with a perfectly matched layer (PML) boundary condition. The simulated findings affirm that the developed fiber exemplifies an ultra-high Br and NLC of 0.0924 and 18900 W-1Km-1 consecutively, at the operational wavelength of 1.55μm. Notably, the offered PCF also reveals a relatively lower CL, a negative-sloping dispersion and a higher EMA at the same wavelength. The pragmatic execution of the modeled fiber is expected to be doable applying the existing fabrication approaches and it can be applied in miscellaneous identical optical domains, namely polarization retention in long-distance communications, optical switching, sensor and laser layout, supercontinuum generation for frequency metrology and so forth.

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Mid-infrared dual-rhombic air hole Ge 20 Sb 15 Se 65 chalcogenide photonic crystal fiber with high birefringence and high nonlinearity

Cited by 34 publications

References 49 publications

A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band

A Novel Gold Film-Coated V-Shape Dual-Core Photonic Crystal Fiber Polarization Beam Splitter Covering the E + S + C + L + U Band

Design of compact dual‐core terahertz polarization beam splitter with broad bandwidth

Tellurite-filled hexa-circular-shaped PCF with highly nonlinearity, birefringent and near-zero dispersion profile for optical communications

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