Segmented cladding fiber fabricated in silica-based glass

Hooda, Babita; Pal, Anand; Rastogi, Vipul; Sen, Ranjan; Gandhi, Jimit; Kobelke, Jens

doi:10.1117/1.oe.54.7.075103

Cited by 20 publications

(5 citation statements)

References 6 publications

(9 reference statements)

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“…It's important to mention a similar structure with two layers of high-index rings has been fabricated using the MCVD process in conjunction with the rod-in-tube method [40]. The silica-glass-based segmented cladding fiber has also been fabricated [41]. Therefore, the proposed fiber is possible to be manufactured with current-state-of-the-art fabrication technology.…”

Section: Fabrication Feasibilitymentioning

confidence: 99%

Segmented Cladding Fiber With a High-Index Ring in Core for Wideband Single-Mode Operation in Any Bending Orientation

Guo

Ning

et al. 2021

IEEE Photonics J.

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A resonant-ring-assisted large mode area segmented cladding fiber (RR-SCF) with a high-index ring in the core is proposed. Numerical investigations of the effects of the high-index ring on the leakage losses of guiding modes, mode area, and electric field distribution of FM in the proposed fiber show the high-index ring not only increases the ratio of the loss between the fundamental mode (FM) and the higher-order modes (HOMs) but also improves the electric field distribution of the FM to be flat. By taking these advantages of the high-index-ring-assisted core, the effective single-mode (SM) operation is achieved in the proposed fiber bent in any orientation, which makes up the defect of the conventional RR-SCF that the SM output is affected by the bending orientation. Meanwhile, the mode area is enlarged. Furthermore, the effects of the heat load, duty cycle, bending, and operation wavelength on the fiber performance are analyzed. The results show single-mode operation in all bending orientations with a mode area larger than 824 μm 2 can be achieved at a tight bending radius of 15 cm to 16 cm when the operating wavelength ranges from 1.06 μm to 1.76 μm. This fiber shows great potential in high-power fiber lasers.

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Section: Fabrication Feasibilitymentioning

confidence: 99%

Segmented Cladding Fiber With a High-Index Ring in Core for Wideband Single-Mode Operation in Any Bending Orientation

Guo

Ning

et al. 2021

IEEE Photonics J.

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“…A ratio of 20 dB is considered sufficient to strip off the HOMs [16]. The leakage loss and effective SM length can be calculated by the following formula [21,22]:…”

Section: Theory and Structurementioning

confidence: 99%

Design and analysis of a modified segmented cladding fiber with parabolic-profile core

Ma¹,

Ning²,

Li³

et al. 2018

Laser Phys. Lett.

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A novel segmented cladding fiber structure is proposed in this paper for large-mode area properties. In this structure, a parabolic-profile core is surrounded by segmented cladding. It is called parabolic-profile core segmented-cladding fiber. The novel fiber has a better single-mode operation than segmented-cladding fiber. A large effective area of 980 µm2 is achieved. It is found that the effective-mode area does not vary with the changing of the bending radius. The bending performance does not change with varying the bending orientation.

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“…Previously, SCFs have been fabricated using materials such as poly (methyl methacrylate) [24][25][26] and other types of polymer composites [27]. Silica-based glass SCF fabrication with four segments, in which the interfaces of segments with undoped and doped material bubbles have been generated, has been reported [28]. A hexagonal-wing SCF fabricated with silica by applying the PIT technique [19] with alumina and silica powder has also been reported.…”

Section: Introductionmentioning

confidence: 99%

The Optimization of a Segmented Cladding Fiber via the Response Surface Methodology Approach for a Large Mode Area

et al. 2023

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In this work, we have proposed and optimized a segmented cladding fiber (SCF) with a large mode area (LMA) consisting of a uniform core and a double cladding. The outer cladding of the SCF consisted of a periodic alternation of high- and low-refractive-index segments, while the inner cladding consisted of a resonant layer of rods surrounded by high-refractive-index rings. The three geometrical parameters chosen as design variables were the (a) doped rod refractive index differences, (b) refractive index differences of rings, and (c) ring thickness. Using the Box–Behnken approach, we selected thirteen different design cases and modeled them numerically using the finite element method (FEM). In order to optimize the features of the proposed fiber, such as the effective mode area (EMA), we applied response surface methodology (RSM). The EMA of the optimal SCF was significantly improved and markedly enlarged to about 706 µm2 at a wavelength of 1.550 µm. Different properties of the optimized double-cladding octo-wing SCF (DC-OW-SCF), such as confinement losses in the core mode and the first higher-order mode, were studied. The DC-OW-SCF offers the advantages of feasibility in fabrication using the powder-in-tube (PIT) method and provides the possibility of utilization in compact amplifier devices and high-power fiber lasers.

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Segmented cladding fiber fabricated in silica-based glass

Cited by 20 publications

References 6 publications

Segmented Cladding Fiber With a High-Index Ring in Core for Wideband Single-Mode Operation in Any Bending Orientation

Segmented Cladding Fiber With a High-Index Ring in Core for Wideband Single-Mode Operation in Any Bending Orientation

Design and analysis of a modified segmented cladding fiber with parabolic-profile core

The Optimization of a Segmented Cladding Fiber via the Response Surface Methodology Approach for a Large Mode Area

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