Design of W-Type Index Chalcogenide Fiber for Highly Coherent Mid-IR Supercontinuum Generation

Khamis, Mustafa A.; Sevilla, Rubén; Ennser, K.

doi:10.1109/jlt.2018.2873589

Cited by 14 publications

(3 citation statements)

References 28 publications

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“…Pulse peak power is also very important for improving the bandwidth of the SC spectrum. The subsequent equation is applied to compute the minimum peak power required to trigger a fundamental soliton, 45,46]. When we provide 1.5 kw input power, the SC spectra increase from 1000 nm to 3900 nm, resulting in a bandwidth of 2900 nm, illustrated in figure 11(a).…”

Section: Supercontinuum Generation and Discussionmentioning

confidence: 99%

Tellurite glass based optical fiber for the investigation of supercontinuum generation and nonlinear properties

et al. 2022

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This manuscript introduces a unique tellurite core-based photonic crystal fiber (PCF) with silica clad and circular air holes, which manifests highly birefringent and non-linear characteristics. Several optical features, such as birefringence (Br), nonlinear coefficients (NLC), dispersion (D), confinement loss (CL) etc. are thoroughly analyzed and explored by applying the finite element method (FEM). The simulated outcomes validate that by optimizing the formation of the cladding region, a large NLC of 7650 W-1Km-1, as well as an ultra-high Br of11.2810-2 and zero-dispersion can be accomplished in the offered PCF design at 1.56 µm wavelength. Moreover, the evaluated findings indicate that the stated fiber structure is capable of generating a wide supercontinuum spectrum spanning from 943 to 8038 nm when augmented with a 4.5 kW input power and a pulse duration of 20 fs. Calculations and analyses have been carried out on the effects of higher-order dispersion co-efficients, pulse length and input power on spectrum broadening. The advanced PCF design will be a suitable candidate for practical applications in numerous fields, including bio photonics, biomedical imaging, biosensing, spectroscopy and ultra-broadband signal amplification, etc.

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Section: Supercontinuum Generation and Discussionmentioning

confidence: 99%

Tellurite glass based optical fiber for the investigation of supercontinuum generation and nonlinear properties

et al. 2022

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“…This is because their wavelength region has strong absorption strength of radiations, and covers the main atmospheric windows as well as many molecular gases, soil pollutants, toxic agents, water and breath components [5]. MIR wavelength range can be generated from several light sources such as optical parametric amplifiers [6], quantum cascade laser [7], supercontinuum [8] and a fiber laser [9][10][11].…”

Section: Introductionmentioning

confidence: 99%

“…This fiber profile has potential characteristics such as a dispersion-flattened fiber. In addition, it has a tight confinement mode, and as it evaluated aroundV = 3.8, it is possible to say it has alarge V-parameter as compared to the value V = 2.405 in the conventional fiber [8]. Having a large-valued V-parameter means it is practically possible to widen the fiber core diameters and, at the same time, maintaining the fiber operation to be in the single operation mode.…”

Section: Introductionmentioning

confidence: 99%

Designing a W-type index praseodymium-doped chalcogenide fiber for strongly-efficient MIR Laser beyond 4 μm

Khamis

QaisAlAbbasi

2022

Int. j. electr. comput. eng. syst. (Online)

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This study is to propose an efficient design based on W-type index praseodymium (Pr 3+ )-doped chalcogenide fiber to enhance the emission of mid-infrared (MIR) wavelength beyond 4 μm. The advantage of the proposed design is to enlarge the core diameter to 32 μm under single mode guidance in order to restrict any impacts of nonlinearity and enhance the applied pumping power before the damage threshold. The effective mode field areas are about 979 μm 2 and 812 μm 2 at 4.5μm emitted MIR wavelength and 2.04μm pump wavelength, respectively. In the considered laser layout within this paper, a single pair of Fiber Bragg Gratings FBGs lay is adopted in the overlapping area of the emitting cross-sections parts of Pr 3+ ions in the transitions ( 3 F 2 , 3 H 6 → 3 H 5 and 3 H 5 → 3 H 4 ). This selected laser layout avoids the difficulties in the fabrication of concatenated FBGs in Pr 3+ -doped chalcogenide glass fibers. In addition, the efficiency of the laser can be also enhanced at this laser layout by emitting two photons in MIR wavelengths from one excited ion. The simulation outcomes indicate the possibility to exceed 61% of slope efficiency at 4.5 μm for 1dB/m loss in the fiber.

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Chalcogenide Glass Fibers for Mid-IR Supercontinuum Generation

Menyuk

2022

The Supercontinuum Laser Source

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Design of W-Type Index Chalcogenide Fiber for Highly Coherent Mid-IR Supercontinuum Generation

Cited by 14 publications

References 28 publications

Tellurite glass based optical fiber for the investigation of supercontinuum generation and nonlinear properties

Tellurite glass based optical fiber for the investigation of supercontinuum generation and nonlinear properties

Designing a W-type index praseodymium-doped chalcogenide fiber for strongly-efficient MIR Laser beyond 4 μm

Chalcogenide Glass Fibers for Mid-IR Supercontinuum Generation

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