Performance of optical fibers in space radiation environment

Alam, Md. Shah; Abramczyk, Jaroslaw; Manyam, Upendra H.; Farroni, J.; Guertin, Douglas

doi:10.1117/12.2308184

Cited by 6 publications

(11 citation statements)

References 6 publications

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“…A comparison of these results to the relative figures in Table 1 clearly show that the RIA in the radiation tolerant PM samples are 2 orders of magnitude below those of standard PM fiber composition. Even so, the standard PM fiber results in table 3 still show significant improvement compared to the previously reported radiation tolerance in PM fibers [14]. …”

Section: A Radiation Tolerant Pm Fibersupporting

confidence: 46%

Radiation tolerant passive and active optical fiber products for use in space environments

Hill

Hankey

Gray

2017

International Conference on Space Optics — ICSO 2014

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This paper reports the radiation performance results of several new product types designed for high radiation environments. The products tested include radiation hardened highly birefringent (HiBi) passive products for polarised applications and radiation tolerant active erbium doped fiber products for amplifiers.Radiation hardened, short beatlength HiBi fiber products have been developed for high accuracy polarisation maintaining (PM) gyros and sensors at both 1310nm and 1550nm operation in the space environment. The fibers have been tested up to 5kGy (500krad) -levels which could be expected in extreme, extra-terrestrial space environments. Results show a consistently low Radiation Induced Attenuation (RIA) of <7dB/km at 5kGy, giving a RIA value of 1.37×10-2 dB/km/krad at 1550nm for this product range.Radiation tolerant EDF AstroGain™ fibers are intended for use in multichannel amplifiers in optical intersatellite communications. The structure of the fibers have been designed to deliver an accelerated recovery of radiation damage through photo-annealing using only the residual energy already available in an amplifier using a 980nm pumping regime. These products have been tested up to 200Gy (20krad) -levels which can be expected in Earth orbit environments over a 20-30 mission lifetime. Results show up to 100% recovery under continuous use for dose rates of 0.11rad/hr. It has also been demonstrated through analysis of the optical spectral output that this effect reverses the gain tilt, or spectral narrowing, induced by radiation damage through the C and L band. These combined fiber characteristics allow performance stability of the amplifier over the lifetime of the space mission.

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Section: A Radiation Tolerant Pm Fibersupporting

confidence: 46%

Radiation tolerant passive and active optical fiber products for use in space environments

Hill

Hankey

Gray

2017

International Conference on Space Optics — ICSO 2014

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“…This fiber is declared by the manufacturer and demonstrated to be radiation tolerant4041, i.e. having a lower RIA in respect to SMF28.…”

Section: Discussionmentioning

confidence: 99%

“…This fiber is declared by the manufacturer as optically and mechanically similar to SMF28 but with improved radiation performances4041;…”

Section: Methodsmentioning

confidence: 99%

Real-time analysis of arc-induced Long Period Gratings under gamma irradiation

Esposito

Ranjan

Stăncălie

et al. 2017

Sci Rep

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In this paper, we present a comparative experimental and theoretical study on gamma radiation sensitivity of Long Period Gratings (LPGs), fabricated by electric arc discharge technique, as monitored in three single mode optical fibers supplied by different manufacturers. A real-time measurement of LPGs’ wavelength shift was performed until a total dose of 35 kGy was reached, with average dose rate of 0.18 kGy/h, the irradiation being done at room temperature. In one case, a maximum radiation sensitivity of 1.34 nm/kGy was recorded for doses up to 0.5 kGy. Moreover, by combining experimental results with numerical simulations, it was found that changes occurred in the core refractive index of the irradiated optical fibers up to 2.5 ∙ 10−5. The increase of the core thermo-optic coefficient up to 1.5 ∙ 10−8/°C was observed as well.

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“…PFBG was attributed to its inherent properties such as sensitivity to small changes, small size, passive nature and it has immunity against high voltage [5]. Others investigated the effect of the different types of ionizing radiations on the response of fiber sensors [7][8][9][10] in order to be used as radiation-dosimeters. Among those fiber sensors, the FBG has been used in applications related to fusion installations, in the telecommunications in space applications, terrestrial nuclear facilities and in nuclear reactors [10][11][12].…”

Section: Introductionmentioning

confidence: 99%

“…Others investigated the effect of the different types of ionizing radiations on the response of fiber sensors [7][8][9][10] in order to be used as radiation-dosimeters. Among those fiber sensors, the FBG has been used in applications related to fusion installations, in the telecommunications in space applications, terrestrial nuclear facilities and in nuclear reactors [10][11][12]. The main reason for choosing FBG is because it can withstand against the radiation hazards, long system-lives under electromagnetic fields and nuclear explodes [13].…”

Section: Introductionmentioning

confidence: 99%