Total Ionizing Dose and Displacement Damage Effects in a Tunable Laser Diode Based Fiber Optic Sensing System

Roner, Markus; Putzer, Philipp; Hurni, Andreas; Schweyer, Sebastian; Lemke, Nathan D.

doi:10.1109/radecs.2015.7365688

Cited by 4 publications

(3 citation statements)

References 1 publication

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“…The MG-Y (Modulated-Grating Y-branch) laser was tested by subjecting it to gamma radiation and neutron displacement damage test (100krad and 1E12 neutrons/cm²) based on the worst case simulation test for a 15 year in orbit use [5]. The test results showed a shift up to 50pm after 100krad, and 1E12 neutrons/cm² on certain fixed laser output wavelength points that were set by driving the laser sections with fixed currents stored in a look up table.…”

Section: Radiation Testing For Interrogator Componentsmentioning

confidence: 99%

Design challenges of a tunable laser interrogator for geo-stationary communication satellites

Ibrahim¹,

Honniball²,

Todd³

et al. 2017

International Conference on Space Optics — ICSO 2016

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Recently optical sensing solutions based on fiber Bragg grating (FBG) technology have been proposed for temperature monitoring in telecommunication satellite platforms with an operational life time beyond 15 years in geo-stationary orbit. Developing radiation hardened optical interrogators designed to be used with FBG sensors inscribed in radiation tolerant fibers offer the capabilities of multiplexing multiple sensors on the same fiber and reducing the overall weight by removing the copper wiring harnesses associated with electrical sensors. Here we propose the use of a tunable laser based optical interrogator that uses a semiconductor MG-Y type laser that has no moving parts and sweeps across the C-band wavelength range providing optical power to FBG sensors and optical wavelength references such as athermal Etalons and Gas Cells to guarantee stable operation of the interrogator over its targeted life time in radiation exposed environments. The MG-Y laser was calibrated so it remains in a stable operation mode which ensures that no mode hops occur due to aging of the laser, and/or thermal or radiation effects. The key optical components including tunable laser, references and FBGs were tested for radiation tolerances by emulating the conditions on a geo-stationary satellite including a Total Ionizing Dose (TID) radiation level of up to 100 krad for interrogator components and 25 Mrad for FBGs. Different tunable laser control, and signal processing algorithms have been designed and developed to fit within specific available radiation hardened FPGAs to guarantee operation of a single interrogator module providing at least 1 sample per second measurement capability across >20 sensors connected to two separate optical channels. In order to achieve the required temperature specifications of ±0.5°C across a temperature range of -20°C to +65°C using femtosecond inscribed FBGs (fs-FBG), a polarization switch is used to mitigate for the polarization dependent frequency shift (PDFS) induced from fs-FBG which could be in the order of > 20 pm causing > 2°C error in the measurement. Also special transducers were designed to isolate the strain from the FBGs to reduce any strain influence on the FBG temperature measurements while ensuring high thermal conductivity.In this paper we demonstrate the operation of an optical FBG interrogator as part of a hybrid sensor bus (HSB) engineering model system developed in the frame of an ESA-ARTES program and is planned to be deployed as a flight demonstrator on-board the German Heinrich Hertz geo-stationary satellite.

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Section: Radiation Testing For Interrogator Componentsmentioning

confidence: 99%

Design challenges of a tunable laser interrogator for geo-stationary communication satellites

Ibrahim¹,

Honniball²,

Todd³

et al. 2017

International Conference on Space Optics — ICSO 2016

Self Cite

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“…Optoelectronic devices are very sensitive to the displacement effects caused by neutrons [2]. When a neutron hits the solid lattice of the active region, the resulting recoil energy (elastic interaction) forms a Frenkel pair or a cascade of atoms displaced from the lattice sites [3][4][5]. The atoms displaced in this way become additional recombination centers, which leads to a decrease of minority carriers lifetime electrical resistance, and carrier mobility.…”

Section: Resultsmentioning

confidence: 99%

Research of Quantum Well Laser Diode’s and Heterostructural P-I-N Photodiode’s of Fiber-Optic Modules Radiation Hardness to Gamma-ray and Neutron Irradiation

Mozhaev¹,

Cherniak²

2018

KEn

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“…As the core element of the scanning laser interrogator for an optical fiber Bragg grating (FBG) sensor system, it has been used in a wide range of research and a wavelength resolution of about 1 pm and precision of about 2 pm has been achieved [8,9]. However, this performance does not completely satisfy the requirements of high-precision interrogators, and the performance of the MG-Y laser may degrade due to environmental changes, cosmic radiation, etc [10][11][12]. This degradation effect will lead to a tuned wavelength drift and resuts in interrogator accuracy deterioration.…”

Section: Introductionmentioning

confidence: 99%

High-resolution wavelength tuning technique for a widely tunable MG-Y lasers

Zhao

Xiao

Lin

et al. 2020

Meas. Sci. Technol.

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The wavelength tuning characteristics of a widely tunable modulated grating Y-branch laser operating in a large temperature range was investigated experimentally. The linear fine-tuning was realized by sweeping the phase region current, and the fine lookup table was created with a high resolution of less than 0.1 pm. We found experimentally that the tuned wavelength has an excellent linear correspondence and there are small intercepts among the parallel tuning lines of different temperatures. Based on this special characteristic, an online simple wavelength re-calibration method of ‘one-wavelength bias pick-up and full wavelength range re-calibration’ was proposed and verified experimentally. The verification experiments proved its feasibility, and a high-tuned wavelength precision and accuracy of ∼0.1 pm within a temperature range of −25 °C to +75 °C was achieved. The tuning accuracy improvement is about two orders for magnitude.

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Total Ionizing Dose and Displacement Damage Effects in a Tunable Laser Diode Based Fiber Optic Sensing System

Cited by 4 publications

References 1 publication

Design challenges of a tunable laser interrogator for geo-stationary communication satellites

Design challenges of a tunable laser interrogator for geo-stationary communication satellites

Research of Quantum Well Laser Diode’s and Heterostructural P-I-N Photodiode’s of Fiber-Optic Modules Radiation Hardness to Gamma-ray and Neutron Irradiation

High-resolution wavelength tuning technique for a widely tunable MG-Y lasers

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