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Bend radius

About: Bend radius is a research topic. Over the lifetime, 3303 publications have been published within this topic receiving 35415 citations. The topic is also known as: minimum bend radius.


Papers
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Journal ArticleDOI
TL;DR: In this paper, the design of a simple large-mode area photonic crystal fiber (LMA-PCF) with low bending loss and low non-linearity is described.
Abstract: In this paper we characterize the design of a simple large-mode area photonic crystal fiber (LMA-PCF) with low bending loss and low non-linearity. The finite element method (FEM) with perfectly matched boundary layer (PML) is used to investigate the guiding properties. According to simulation the characterized four ring fluorine doped triangular core LMA-PCF achieves 1500 µm 2 effective mode area with a low bending loss of 10 -5 dB/km at the wavelength of 1.064 µm and at a bending radius of 40 cm which is suitable for high power fiber laser.

18 citations

Patent
05 Nov 2001
TL;DR: In this paper, a bend radius control member for controlling the bend radius of an optical fiber cable including a deformation resistant heat shrunk outer jacket wrapped around the optical fiber is presented.
Abstract: A bend radius control member for controlling the bend radius of an optical fiber cable including a deformation resistant heat shrunk outer jacket wrapped around the optical fiber cable. The heat shrunk outer jacket has a desired bend radius curvature.

18 citations

Patent
10 Jul 1995
TL;DR: In this article, at the exit openings of cable ducts guiding devices are provided and configured such that they prevent falling below the critical bending radius and that they widen in the direction of exit and are rounded.
Abstract: A device for the protection of cables laid in switch cabinets, other equipment or the like, in order to prevent bends below a minimum bending radius at the exits of cable ducts or similar equipment and that prevents corresponding damages. At the exit openings of cable ducts guiding devices are provided and configured such that they prevent falling below the critical bending radius and that they widen in the direction of exit and are rounded.

17 citations

Patent
26 Apr 1993
TL;DR: In this paper, a high energy coaxial cable is disclosed which is flexible to the extent of allowing a bend radius as short as 11 1/2 inches and is reinforced to resist the high magnetic forces within the cable caused by the high current conducted.
Abstract: A high energy coaxial cable is disclosed which is flexible to the extent of allowing a bend radius as short as 11 1/2 inches. The cable will conduct up to 500 kiloamperes and is reinforced to resist the high magnetic forces within the cable caused by the high current conducted. The cable is therefore useful in coupling high current between parts which experience relative movement such as a stationary power supply and a recoiling gun breech.

17 citations

Journal ArticleDOI
TL;DR: Numerical results show that effective single-mode operation can be ensured with a mode area as large as 1530 μm2 at bend state with a bend radius of 30 cm and the proposed photonic crystal optical fiber with such a large mode area can have potential applications in compact high-power delivery devices such as high- power fiber lasers and amplifiers.
Abstract: The asymmetrical structure of photonic crystal fiber has been reported for a large mode area with the single-mode operation. The design works on the principle of bend-induced mode filtering. The proposed structure can be designed (i) by introducing down-doped material rods in place of nine air holes of the inner ring near the core of the structure and (ii) by increasing the diameter of the rest of the three air holes of the same ring in the direction of bending. These three air holes together with nine down-doped material rods control the mode field inside the core region and hence the bending losses of the modes. The single-mode operation is ensured by introducing high bend loss for the first higher order mode and very low bend loss for the fundamental mode. The finite-element-method-based anisotropic perfectly matched layer boundary condition has been applied for accurate analysis of bend loss of the structure. Numerical results show that effective single-mode operation can be ensured with a mode area as large as 1530 μm2 at bend state with a bend radius of 30 cm. The proposed photonic crystal optical fiber with such a large mode area can have potential applications in compact high-power delivery devices such as high-power fiber lasers and amplifiers.

17 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
202365
2022172
202181
2020112
2019135
2018153