Analysis of coating temperature increase in fibers under high power and tight bending

Bigot-Astruc, Marianne; Sillard, Pierre; Gauchard, S.; Roux, P. Le; Brandon, E.

doi:10.1109/ofc.2006.216000

Cited by 12 publications

(11 citation statements)

References 5 publications

(9 reference statements)

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“…Failures at bends are caused by the light that leaks from the core when the fiber is accidentally tightly bent under high power [3,[28][29][30][31][32][33][34][35][36][37]. The fiber coating absorbs the leaked light and its temperature increases, and a failure occurs at the bend.…”

Section: Open Accessmentioning

confidence: 99%

Optical Fiber for High-Power Optical Communication

Kurokawa

2012

Crystals

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Abstract:We examined optical fibers suitable for avoiding such problems as the fiber fuse phenomenon and failures at bends with a high power input. We found that the threshold power for fiber fuse propagation in photonic crystal fiber (PCF) and hole-assisted fiber (HAF) can exceed 18 W, which is more than 10 times that in conventional single-mode fiber (SMF). We considered this high threshold power in PCF and HAF to be caused by a jet of high temperature fluid penetrating the air holes. We showed examples of two kinds of failures at bends in conventional SMF when the input power was 9 W. We also observed the generation of a fiber fuse under a condition that caused a bend-loss induced failure. We showed that one solution for the failures at bends is to use optical fibers with a low bending loss such as PCF and HAF. Therefore, we consider PCF and HAF to be attractive solutions to the problems of the fiber fuse phenomenon and failures at bends with a high power input.

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Section: Open Accessmentioning

confidence: 99%

Optical Fiber for High-Power Optical Communication

Kurokawa

2012

Crystals

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“…Namely, the correlation of temperature and fibre time failure (Davis et al, 2005), the definition of the safety bending limits . Recently, this topic was also studied in the new bend insensitive fibres (G.657), showing that the maximum power that can be injected safely in these fibres without coating risk is > 3 W (Bigot-Astruc et al, 2008).…”

Section: Literature Reviewmentioning

confidence: 99%

Thermal Effects in Optical Fibres

André¹,

Rocha²,

Domingues³

et al. 2011

Developments in Heat Transfer

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“…1 W). Bigot-Astruc et al clearly identified this discrepancy for high optical power and suggest that above a critical value the received energy on the coating is used for other mechanisms than thermal oxidation [7].…”

Section: Experimentmentioning

confidence: 99%