Temperature sensing in multiple zones based on Brillouin fiber ring laser

Galíndez, Carlos; Saavedra, Francisco Javier Madruga; Ullán, A.; Lopez-Amo, M.; López‐Higuera, J. M.

doi:10.1088/1742-6596/178/1/012017

Cited by 4 publications

(4 citation statements)

References 5 publications

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“…For some decades, FBGs were the predominant sensing element [7,[13][14][15][16][17][18][19]; however, other fiber laser configurations based on the Brillouin effect were demonstrated for temperature and strain [20][21][22]. Furthermore, the FBGs started being combined with Fabry-Perot [23], Sagnac [24], and Mach-Zehnder [25] interferometers to improve the fiber laser sensor performance.…”

Section: Introductionmentioning

confidence: 99%

Fiber Laser Sensor Configurations for Refractive Index, Temperature and Strain: A Review

et al. 2023

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Fiber laser sensors have been present for almost four decades as versatile sensing devices with a simple demodulation process, high sensitivity, and competitive resolution. This work discusses the most representative fiber laser sensor configurations employed for detecting critical parameters such as temperature, refractive index, and strain. However, essential information about other interesting parameters that have been measured is considered in this manuscript. Concurrently, the sensing elements and principle operation are described. Furthermore, these configurations are analyzed in terms of their principle of operation, sensitivity, gain medium, and wavelength operation range. According to the literature reviewed, fiber laser sensors offer the possibility of new interrogation techniques and simultaneous, independent detection. Considering interferometric fiber sensors, the fiber laser sensors offer high brightness, good output power, and high resolution. As a result, it is demonstrated that fiber laser sensors are a robust alternative for multiple sensing applications.

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Section: Introductionmentioning

confidence: 99%

Fiber Laser Sensor Configurations for Refractive Index, Temperature and Strain: A Review

et al. 2023

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“…These characteristics can be used for developing applications such as multiline lasers for temperature sensing [5] or gyroscopes [6]. The wavelength backward emitted corresponds to the Brillouin frequency shift ð B Þ from a given pump, in the order of ten gigahertz for 1550 nm, which is affected by physical and optical parameters of the optical fiber.…”

Section: Introductionmentioning

confidence: 99%

Pulsed Wavelength-Tunable Brillouin Fiber Laser Based on a Fourier-Domain Mode-Locking Source

Galíndez

López‐Higuera

2013

IEEE Photonics J.

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In this work, a pulsed wavelength-tunable Brillouin fiber laser based on a Fourierdomain mode-locking (FDML) source with a repetition rate of 4.2 kHz is presented. The tunable Brillouin laser is formed by a fiber-ring cavity (for the Stokes signal amplification) within a primary fiber-ring cavity for generating an FDML signal. The primary cavity is formed by an erbium-doped fiber amplifier and a fiber Fabry-Perot filter (FFP-F) as the gain medium and the tunable optical bandpass filter, respectively. A spectral laser tuning range of 2.54 nm centered in 1531 nm was achieved by adjusting the offset voltage of the FFP-F, while a variation, from 0.282 to 0.462 nm, on the Brillouin linewidth of the laser was achieved by setting the amplitude of a modulation signal applied in the FFP-F. A laser pulsewidth of 6.50 s was measured, and an output power of À7 dBm was achieved.

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“…Fiber ring lasers based on Brillouin scattering are a well known laser configuration that have been intensively studied due to their narrow linewidth, gain quality of the nonlinear effect and easy experimental configuration, among other advantages. This kind of laser also offers the possibility to use fiber spools as active mediums within the cavity laser and then integral temperature sensors can be developed 2 . On the other hand, there are fiber ring lasers that are based on a Fabry-Perot tunable filter (FFP-TF), which can be easily tuned using bias voltage tuning 3,4 .…”

Section: Introductionmentioning

confidence: 99%

Integral temperature hybrid laser sensor

et al. 2012

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An integral temperature sensor based on Brillouin laser ring that is feed by a Fourier Domain mode-locking (FDML) laser is here proposed. The source FDML laser ring emits at 1532 nm within a range of 5 nm. The working wavelength is given by tuning the offset voltage applied to a Fabry-Perot tunable filter (FFP-TF). In the present work, the FDML laser linewidth is set at 0.136 nm. This linewidth allows a more efficient Brillouin response in the optical fiber without increasing the Brillouin threshold. The FDML laser linewidth is controlled by setting the amplitude modulation of the drive signal offset applied on the FFP-TF.

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Temperature sensing in multiple zones based on Brillouin fiber ring laser

Cited by 4 publications

References 5 publications

Fiber Laser Sensor Configurations for Refractive Index, Temperature and Strain: A Review

Fiber Laser Sensor Configurations for Refractive Index, Temperature and Strain: A Review

Pulsed Wavelength-Tunable Brillouin Fiber Laser Based on a Fourier-Domain Mode-Locking Source

Integral temperature hybrid laser sensor

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