A Switchable Erbium Doped Fiber Ring Laser System for Temperature Sensors Multiplexing

Rota-Rodrigo, Sergio; Rodŕıguez-Cobo, Luis; Quintela, M. A.; López‐Higuera, J. M.; Lopez-Amo, M.

doi:10.1109/jsen.2013.2253093

Cited by 10 publications

(4 citation statements)

References 18 publications

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“…Among them, the fiber laser sensors based on electrical domain detection through fiber lasers beating frequency technology have attracted a lot of attention recently. There are several reported structures, such as fiber laser sensors based on erbium-doped fiber lasers (EDFLs) with fiber Bragg grating (FBG) for transverse force [12], ultrasonic [13], strain [14], vibration [15], liquid-level [16] and temperature [17] sensing, and based on Brillouin fiber lasers (BFLs) for temperature sensing [18], [19]. As for practical applications of the Brillouin fiber laser sensors, high and tunable sensitivity are of important performances which should be taken into consideration.…”

Section: Introductionmentioning

confidence: 99%

Multiwavelength Brillouin–Erbium Fiber Laser Temperature Sensor With Tunable and High Sensitivity

Zhang

2015

IEEE Photonics J.

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A multiwavelength Brillouin-erbium fiber laser (MBEFL) temperature sensor with high and tunable sensitivity has been developed and experimentally demonstrated in this paper. Owing to rigid Brillouin frequency shift spacing of MBEFLs, MBEFLs are very suitable for temperature sensing and can be used to realize high and tunable sensing sensitivity. By monitoring the center frequency shift of the beat signal spectrum of the two same-order Brillouin Stokes waves coming from the sensing MBEFL and the reference one, the high and tunable sensitivity has been realized. The proposed tunable temperature sensor realizes a finer tuning step. It shows a high stability and provides a sensing sensitivity of 13.08 MHz= C and a tuning step of 1.09 MHz= C. At 12th-order sensitivity, the temperature error is about 0:23 C ðAE0:115 CÞ, and the temperature resolution is about 0.765 C.

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Section: Introductionmentioning

confidence: 99%

Multiwavelength Brillouin–Erbium Fiber Laser Temperature Sensor With Tunable and High Sensitivity

Zhang

2015

IEEE Photonics J.

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“…One of the most advanced fiber optic sensor systems is based on fiber Bragg gratings (FBGs). Because of their highly linear responses to temperature, strain, pressure, and vibration, these types of sensors are frequently utilized in the structural health monitoring industry [11][12][13]. Bragg grating components, such as FBGs, are usually applied as wavelength-selected parts in a dual-or multi-wavelength laser.…”

Section: Introductionmentioning

confidence: 99%

“…The employment of EDF lasers based on FBGs reflectors for monitoring wavelength variations in the optical domain is one of the most widespread. These systems exhibit a high sensitivity reaction to changes in temperature resulting in a very small wavelength variation that cannot be monitored with wavelength detectors [13].…”

Section: Introductionmentioning

confidence: 99%

Responsiveness of temperature using tunable dual-wavelength Q-switched fiber laser

Zamri¹,

Zalkepali²,

Awang³

et al. 2023

Laser Phys.

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In this paper, a responsiveness temperature based on a tunable dual-wavelength Q-switched fiber laser has been proposed and experimentally demonstrated. Experiments have been carried out with tunable dual-wavelength Q-switched fiber laser by using graphite as a saturable absorber, which is incorporated in the two fiber Bragg gratings (FBG) as a sensing element. Both FBG 1 and FBG 2 have a central wavelength of 1550 nm and 1551 nm, respectively. The optical spectral and RF signals are proven observed during the temperature change. The results from optical spectra demonstrate the measured temperature has good linearity, where the slope of the graph is thus the temperature sensitivity of 1550 nm FBG. The R2 value of the graph is 0.965 and the value of temperature sensitivity is 0.0064 nm °C−1. For FBG 2 as the sensing element, the R2 value of the graph is 0.9751 and the value of temperature sensitivity is 0.0068 nm °C−1. In addition, the repetition rate is almost linear with the temperature change, giving the correlation factor of R2 value of FBG 1 and FBG 2 are 0.8118 and 0.9046, respectively. The experimental results prove the feasibility of the proposed temperature sensor.

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“…Recently, numerous optical temperature sensors have been proposed using various techniques. For instance, temperature sensors based on Long Period Gratings (LPG) [2], fiber tapers [3][4], multimode interference [5] and Fiber Bragg Gratings (FBG) [6][7][8][9][10][11][12][13]. To the best of the authors' knowledge, FBG is one of the most renowned optical temperature sensors.…”

Section: Introductionmentioning

confidence: 99%

Design of fiber bragg grating (FBG) temperature sensor based on optical frequency domain reflectometer (OFDR)

Naim

Sudin

Sarnin

et al. 2020

IJECE

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In this paper, the simulation of Fiber Bragg Grating (FBG) as a temperature sensor is conducted. The FBG temperature sensor is designed based on Optical Frequency Domain Reflectometer (OFDR) concept. A continuous wave (CW) laser is used as the optical source and it is transmitted to two FBGs. The two FBGs reflection spectra will produce a beat frequency that can be detected using a Radio Frequency (RF) Spectrum Analyzer. Any temperature change will shift Bragg wavelength, thus produce a shift for the beat frequency. In this work, an FBG with temperature sensitivity 10 pm/˚C is employed. It is found that by using this technique, a high-resolution temperature sensor can be designed with temperature resolution of 0.1˚C.

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A Switchable Erbium Doped Fiber Ring Laser System for Temperature Sensors Multiplexing

Cited by 10 publications

References 18 publications

Multiwavelength Brillouin–Erbium Fiber Laser Temperature Sensor With Tunable and High Sensitivity

Multiwavelength Brillouin–Erbium Fiber Laser Temperature Sensor With Tunable and High Sensitivity

Responsiveness of temperature using tunable dual-wavelength Q-switched fiber laser

Design of fiber bragg grating (FBG) temperature sensor based on optical frequency domain reflectometer (OFDR)

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