Suspended-core Fabry-Perot temperature sensor interrogation through a dual wavelength Raman fiber laser

Pinto, A. M. R.; Frazão, Orlando; Santos, J. L.; Lopez-Amo, M.; Kobelke, Jens; Schuster, Kay

doi:10.1117/12.863540

Cited by 21 publications

(25 citation statements)

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“…These include the use of multiple ring-cavities 8 , saturable absorbers 9 , the use of FBGs as self-injection feedback elements 10 , fiber distributed feedback lasers, fiber ring lasers or Sagnac configurations 10,11 with different ring cavity topologies. Because of their stability, multiwavelength SLM fiber lasers are therefore particularly appealing for sensors, even in its dual wavelength version 12 . In this work, we experimentally demonstrate a dual-wavelength erbium-doped fiber-ring laser operating in SLM.…”

Section: Introductionmentioning

confidence: 99%

Stable dual-wavelength erbium fiber laser for temperature measurements

Díaz

Lopez-Amo

2015

SPIE Proceedings

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In this work, a new stable dual-wavelength erbium fiber ring laser is proposed and experimentally demonstrated. This configuration is made by creating two symmetrical laser cavities with similar optical power. This topology allows the performance of two laser emission lines in single-longitudinal mode and with a power instability lower than 0.23 dB, and an optical signal-to-noise ratio higher than 40 dB for all the emitted wavelengths. The sensing capability of the FBGs enables this source to be also used as sensor-network multiplexing scheme. The system offers a better stability and higher optical signal to noise ratios than similar configurations.

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Section: Introductionmentioning

confidence: 99%

Stable dual-wavelength erbium fiber laser for temperature measurements

Díaz

Lopez-Amo

2015

SPIE Proceedings

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“…As for the applications, the unique features of RFL make it very promising in the fields of fiber-optic communication [17] and sensing [18][19][20][21][22][23]. Recently, we have studied the characteristics of RFL-based 2 nd -order distributed Raman amplification (DRA) [17].…”

Section: Introductionmentioning

confidence: 99%

154.4km BOTDA based on hybrid distributed Raman amplifications

et al. 2014

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Ultra-long-distance distributed fiber-optic sensing based on Brillouin optical time-domain analysis (BOTDA) is achieved by using a proposed configuration of hybrid distributed Raman amplification (H-DRA), that is realized by incorporating random fiber laser (RFL) based 2nd-order pump and low-noise laser-diode (LD) based 1st-order pump. A repeater-less sensing distance of up to 154.4km with 5m spatial resolution and ~±1.4°C temperature uncertainty is successfully demonstrated, which is the longest repeater-less BOTDA reported to date.

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“…The noise level of random DFB fiber lasers could be lower than of conventional lasers 18 making them attractive for telecom applications. Random DFB fiber lasers are also applied for sensor applications [19][20][21] .…”

Section: Introductionmentioning

confidence: 99%

NLSE-based model of a random distributed feedback fiber laser

Smirnov

Churkin

2014

SPIE Proceedings

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In this work we propose a NLSE-based model of power and spectral properties of the random distributed feedback (DFB) fiber laser. The model is based on coupled set of non-linear Schrödinger equations for pump and Stokes waves with the distributed feedback due to Rayleigh scattering. The model considers random backscattering via its average strength, i.e. we assume that the feedback is incoherent. In addition, this allows us to speed up simulations sufficiently (up to several orders of magnitude). We found that the model of the incoherent feedback predicts the smooth and narrow (comparing with the gain spectral profile) generation spectrum in the random DFB fiber laser. The model allows one to optimize the random laser generation spectrum width varying the dispersion and nonlinearity values: we found, that the high dispersion and low nonlinearity results in narrower spectrum that could be interpreted as four-wave mixing between different spectral components in the quasi-mode-less spectrum of the random laser under study could play an important role in the spectrum formation. Note that the physical mechanism of the random DFB fiber laser formation and broadening is not identified yet. We investigate temporal and statistical properties of the random DFB fiber laser dynamics. Interestingly, we found that the intensity statistics is not Gaussian. The intensity auto-correlation function also reveals that correlations do exist. The possibility to optimize the system parameters to enhance the observed intrinsic spectral correlations to further potentially achieved pulsed (mode-locked) operation of the mode-less random distributed feedback fiber laser is discussed.

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Suspended-core Fabry-Perot temperature sensor interrogation through a dual wavelength Raman fiber laser

Cited by 21 publications

References 0 publications

Stable dual-wavelength erbium fiber laser for temperature measurements

Stable dual-wavelength erbium fiber laser for temperature measurements

154.4km BOTDA based on hybrid distributed Raman amplifications

NLSE-based model of a random distributed feedback fiber laser

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