Mechanical lifetime model for optical fibers in harsh environments

Griffioen, W.

doi:10.1117/12.163770

Cited by 6 publications

(6 citation statements)

References 2 publications

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“…The force should increase linearly as function of extension and should not show any irregular shapes. Different pull speeds can be used to perform a reliability analysis [21].…”

Section: Fibresmentioning

confidence: 99%

The versatile link, a common project for super-LHC

et al. 2009

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A common project to develop a bi-directional, radiation tolerant, high speed (4.8 Gb/s) optical link for future high energy physics experiments is described. Due to be completed in 2012, it targets the upgrade programs of detectors installed at CERN's Large Hadron Collider (LHC). The development of radiation and magnetic field tolerant opto-electronic devices, fibre and connectors is described. Both Single-Mode and Multi-Mode versions of the system operating respectively at 850 nm and 1310 nm wavelength are proposed. First results at component and system level are presented, based mostly on commercially available devices.

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“…The force should increase linearly as function of extension and should not show any irregular shapes. Different pull speeds can be used to perform a reliability analysis [21].…”

Section: Fibresmentioning

confidence: 99%

The versatile link, a common project for super-LHC

et al. 2009

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“…Our previous studies were based on dynamic fatigue, using axial pull testing. The theory of fibre mechanical reliability is reviewed in our previous publication [7] and is discussed in detail in [9] and [10]. A brief summary of the main points of this theory are summarized here for convenience.…”

Section: Methodsmentioning

confidence: 99%

Further studies of the effect of radiation on the mechanical strength of optical fibres

2013

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Studies were performed of the mechanical reliability of optical fibre, before and after radiation, to a dose expected for tracking detectors at HL-LHC of 500 kGy(Si). The studies used a 2-point bend test system and were able to determine the fibre stress corrosion susceptibility parameter, n. The comparison of the radiation-induced changes in the n-value allowed us to determine if there was any deterioration in mechanical reliability of the two fibre types tested. The measured n-values for two multi-mode fibres showed some evidence for an increase after radiation which implies that the mechanical reliability of these fibres will not be compromised by radiation to the expected doses at the HL-LHC.

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“…An additional condition B << fft/_2 however, must be fulfilled in order not to make estimates that are too conservative with Eq. (7). But in any case C =0 can be used as the worst case.…”

Section: Derivation Of the Basic Lifetime Equationmentioning

confidence: 96%

“…Modified versions of the presented models, for use in more harsh environments (high temperature or humidity, but no water), such as in aerial cables or splice boxes, are presented in Ref. 7. The recipe for the proposed power law-based lifetime model (1) can later also be used if a better model than the power law is found to explain phenomena that are not yet understood.…”

Section: Crack Growthmentioning

confidence: 98%