Gold-coated photonic crystal fiber based polarization filter for dual communication windows

Rahman, Md. Mobassar; Khaleque, Abdul; Rahman, Md. Tarek; Rabbi, Fazley

doi:10.1016/j.optcom.2020.125293

Cited by 40 publications

(11 citation statements)

References 41 publications

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“…Let us now discuss the potential use of the proposed SPR-PCF in polarization filtering applications. To this end, we used the polarization cross-talk (CT) parameter, i.e., the transmission performance according to

and

, as [ 33 ]

where L is the fiber length. Since x and y polarizations can be easily separated for

[ 33 ], we used

dB as the reference values, indicated by horizontal dashed lines in Figure 4 a.…”

Section: Resultsmentioning

confidence: 99%

“…To this end, we used the polarization cross-talk (CT) parameter, i.e., the transmission performance according to

and

, as [ 33 ]

where L is the fiber length. Since x and y polarizations can be easily separated for

[ 33 ], we used

dB as the reference values, indicated by horizontal dashed lines in Figure 4 a. As the CT values strongly depend on L , see Equation ( 3 ), we carried out calculations for L = 25

m, 50

m, 100

m, 200

m and 400

m. We should emphasize here that negative CT-values correspond to high y -pol signal over x -pol, whereas positive CT denote high x -pol signal over y -pol.…”

Section: Resultsmentioning

confidence: 99%

“…The cross-section of these SPR-PCFs are usually made by periodic arranges of air holes, some of which are filled or coated with metallic components, surrounding one or more cores (where light is confined). The SPR excitation is thus reached in PCFs through the phase-matching between the core-mode and the surface plasmon mode, i.e., when both modes have the same effective refractive indices [ 21 , 22 , 23 , 24 , 25 , 26 , 27 , 28 , 29 , 30 , 31 , 32 , 33 ]. In spite of the extensive research efforts on plasmonic PCFs, the narrow frequency range for SPR excitation constitutes a major hurdle for practical applications in, for example, sensors and multiband polarization beam splitters and filters [ 16 , 17 , 30 , 32 ].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Surface Plasmon Resonances in Sierpinski-Like Photonic Crystal Fibers: Polarization Filters and Sensing Applications

Carvalho

Mejía‐Salazar

2020

Molecules

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We investigate the plasmonic behavior of a fractal photonic crystal fiber, with Sierpinski-like circular cross-section, and its potential applications for refractive index sensing and multiband polarization filters. Numerical results were obtained using the finite element method through the commercial software COMSOL Multiphysics®. A set of 34 surface plasmon resonances was identified in the wavelength range from λ=630 nm to λ=1700 nm. Subsets of close resonances were noted as a consequence of similar symmetries of the surface plasmon resonance (SPR) modes. Polarization filtering capabilities are numerically shown in the telecommunication windows from the O-band to the L-band. In the case of refractive index sensing, we used the wavelength interrogation method in the wavelength range from λ=670 nm to λ=790 nm, where the system exhibited a sensitivity of S(λ)=1951.43 nm/RIU (refractive index unit). Due to the broadband capabilities of our concept, we expect that it will be useful to develop future ultra-wide band optical communication infrastructures, which are urgent to meet the ever-increasing demand for bandwidth-hungry devices.

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and

, as [ 33 ]

where L is the fiber length. Since x and y polarizations can be easily separated for

[ 33 ], we used

dB as the reference values, indicated by horizontal dashed lines in Figure 4 a.…”

Section: Resultsmentioning

confidence: 99%

“…To this end, we used the polarization cross-talk (CT) parameter, i.e., the transmission performance according to

and

, as [ 33 ]

where L is the fiber length. Since x and y polarizations can be easily separated for

[ 33 ], we used

dB as the reference values, indicated by horizontal dashed lines in Figure 4 a. As the CT values strongly depend on L , see Equation ( 3 ), we carried out calculations for L = 25

m, 50

m, 100

m, 200

m and 400

m. We should emphasize here that negative CT-values correspond to high y -pol signal over x -pol, whereas positive CT denote high x -pol signal over y -pol.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Surface Plasmon Resonances in Sierpinski-Like Photonic Crystal Fibers: Polarization Filters and Sensing Applications

Carvalho

Mejía‐Salazar

2020

Molecules

View full text Add to dashboard Cite

show abstract

“…Since the first photonic crystal fiber (PCF) was fabricated by Russell et al in 1996 [ 1 ], PCFs have been investigated extensively and applied in different optical fields, such as fiber laser, sensing, optical communication, and so on [ 2 , 3 , 4 , 5 , 6 , 7 , 8 ]. At present, the PCF-based optical devices, including polarization beam splitter (PBS), polarization filter, modulator, etc., have become the indispensable components in the all-fiber optical systems [ 9 , 10 , 11 , 12 , 13 , 14 ].…”

Section: Introductionmentioning

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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“…In recent years, the surface plasmon resonance (SPR) technology has gradually been becoming maturity [19][20][21][22][23]. Many investigations on the combination of the PCF and SPR effect for the optical devices have been reported [24][25][26][27][28]. Until now, researchers have designed some DC-PCF PBSs based on the mode coupling between the core mode of the DC-PCF and surface plasmon polariton (SPP) mode [29][30][31][32][33].…”

Section: Introductionmentioning

confidence: 99%

Surface plasmon resonance-based silicon dual-core photonic crystal fiber polarization beam splitter at the mid-infrared spectral region

Yuan

Zhou

et al. 2020

J. Opt. Soc. Am. B

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In this paper, a novel silicon dual-core photonic crystal fiber (Si-DC-PCF) polarization beam splitter (PBS) based on surface plasmon resonance effect is proposed. The mode coupling characteristics between the X and Y-polarized even and odd modes and surface plasmon polariton mode are analyzed by using the finite element method and coupled-mode theory. The influences of the structure parameters of the Si-DC-PCF on the coupling length and coupling length ratio are investigated. The normalized output power of the X and Y-polarized modes in the cores A and B and the corresponding extinction ratio are also discussed. By optimizing the structure parameters of the Si-DC-PCF, the PBS length of 192 μm and bandwidth of 830 and 730 nm in the cores A and B are achieved. It is believed that the proposed Si-DC-PCF PBS can find important applications in the mid-infrared laser and sensing systems.

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Gold-coated photonic crystal fiber based polarization filter for dual communication windows

Cited by 40 publications

References 41 publications

Surface Plasmon Resonances in Sierpinski-Like Photonic Crystal Fibers: Polarization Filters and Sensing Applications

Surface Plasmon Resonances in Sierpinski-Like Photonic Crystal Fibers: Polarization Filters and Sensing Applications

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

Surface plasmon resonance-based silicon dual-core photonic crystal fiber polarization beam splitter at the mid-infrared spectral region

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