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LOLS research in technology for the development and application of new fiber-based sensors.

Coelho J, Nespereira M, Silva C, Rebordão J - Sensors (Basel) (2012)

Bottom Line: This paper presents the research made at the Laboratory of Optics, Lasers and Systems (LOLS) of the Faculty of Sciences of University of Lisbon, Portugal, in the field of fiber-based sensors.Three areas are considered: sensor encapsulation for natural aqueous environments, refractive index modulation and laser micropatterning.We present the main conclusions on the issues and parameters to take in consideration for the encapsulation process and results of its design and application.

View Article: PubMed Central - PubMed

Affiliation: Department of Physics, Faculty of Sciences, University of Lisbon, Lisboa, Portugal. joao.coelho@fc.ul.pt

ABSTRACT
This paper presents the research made at the Laboratory of Optics, Lasers and Systems (LOLS) of the Faculty of Sciences of University of Lisbon, Portugal, in the field of fiber-based sensors. Three areas are considered: sensor encapsulation for natural aqueous environments, refractive index modulation and laser micropatterning. We present the main conclusions on the issues and parameters to take in consideration for the encapsulation process and results of its design and application. Mid-infrared laser radiation was applied to produce long period fiber gratings and nanosecond pulses of near-infrared Q-switch laser were used for micropatterning.

No MeSH data available.


Schematic of the issues and parameters to take in consideration when projecting a sensing head to operate in natural aqueous environments.
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f1-sensors-12-02654: Schematic of the issues and parameters to take in consideration when projecting a sensing head to operate in natural aqueous environments.

Mentions: When considering this application, the project of the sensing head must address a set of issues and parameters [2]. As schematized in Figure 1, we basically have to consider three main subjects: the sensor performance, which must be defined accordingly with the expected measurement needs, the mechanical constrains, that should take in consideration the encapsulation requirements, and the filtering system, which plays an important role for the in situ measurement capability during an acceptable period of time. Although the main focus was made on encapsulating LPFG sensors, most of these issues are common to other types of fibers-based sensors.


LOLS research in technology for the development and application of new fiber-based sensors.

Coelho J, Nespereira M, Silva C, Rebordão J - Sensors (Basel) (2012)

Schematic of the issues and parameters to take in consideration when projecting a sensing head to operate in natural aqueous environments.
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3376623&req=5

f1-sensors-12-02654: Schematic of the issues and parameters to take in consideration when projecting a sensing head to operate in natural aqueous environments.
Mentions: When considering this application, the project of the sensing head must address a set of issues and parameters [2]. As schematized in Figure 1, we basically have to consider three main subjects: the sensor performance, which must be defined accordingly with the expected measurement needs, the mechanical constrains, that should take in consideration the encapsulation requirements, and the filtering system, which plays an important role for the in situ measurement capability during an acceptable period of time. Although the main focus was made on encapsulating LPFG sensors, most of these issues are common to other types of fibers-based sensors.

Bottom Line: This paper presents the research made at the Laboratory of Optics, Lasers and Systems (LOLS) of the Faculty of Sciences of University of Lisbon, Portugal, in the field of fiber-based sensors.Three areas are considered: sensor encapsulation for natural aqueous environments, refractive index modulation and laser micropatterning.We present the main conclusions on the issues and parameters to take in consideration for the encapsulation process and results of its design and application.

View Article: PubMed Central - PubMed

Affiliation: Department of Physics, Faculty of Sciences, University of Lisbon, Lisboa, Portugal. joao.coelho@fc.ul.pt

ABSTRACT
This paper presents the research made at the Laboratory of Optics, Lasers and Systems (LOLS) of the Faculty of Sciences of University of Lisbon, Portugal, in the field of fiber-based sensors. Three areas are considered: sensor encapsulation for natural aqueous environments, refractive index modulation and laser micropatterning. We present the main conclusions on the issues and parameters to take in consideration for the encapsulation process and results of its design and application. Mid-infrared laser radiation was applied to produce long period fiber gratings and nanosecond pulses of near-infrared Q-switch laser were used for micropatterning.

No MeSH data available.