Gamma Radiation Measurements using an Optical Fiber Laser

Pérez-Herrera, Rosa Ana; Stăncălie, Andrei; Cabezudo, Pablo; Sporea, Dan; Neguţ, Daniel; Lopez-Amo, M.

doi:10.1364/ofs.2018.wf37

Cited by 3 publications

(1 citation statement)

References 5 publications

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“…1 illustrates the results and, as expected, a random reflectance under 5 % was measured throughout the entire spectral range under study. Secondly, backscattered optical power along the length of the ACBFR was also analyzed by using an optical backscatter reflectometer (OBR; Luna OBR 4600) which achieves an ultrahigh spatial resolution of 0.1 mm under its time-domain acquisition mode, as reported in [23]. It is noteworthy that the OBR employed performs the desired measurement over almost the entire spectral range under study (1545 to 1588 nm).…”

Section: Working Principle: Inscription Processmentioning

confidence: 99%

High Performance Fiber Laser Resonator for Dual Band (C and L) Sensing

Sanchez-Gonzalez

Pérez-Herrera

Roldán-Varona

et al. 2022

J. Lightwave Technol.

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This work presents an experimental analysis and comparison of the performance of quasi-randomly distributed reflectors inscribed into a single-mode fiber as a sensing mirror both in C-and L-band. Single-wavelength emission has been obtained in either band when using these artificially controlled backscattering fiber reflectors in a ring-cavity fiber laser. Singlelongitudinal mode operation with an optical signal to noise ratio (OSNR) of 47 dB and an output power instability as low as 0.04 dB have been measured when employing a C-band optical amplifier. When replaced by an L-band optical amplifier, a singlelongitudinal mode behavior has also been obtained, showing an OSNR of 44 dB and an output power instability of 0.09 dB. Regarding their performance as fiber-laser sensing systems, very similar temperature and strain sensitivities have been obtained in both bands, comparable to fiber Bragg grating sensors in the case of temperature and one order of magnitude higher in the case of strain variations.

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Section: Working Principle: Inscription Processmentioning

confidence: 99%

High Performance Fiber Laser Resonator for Dual Band (C and L) Sensing

Sanchez-Gonzalez

Pérez-Herrera

Roldán-Varona

et al. 2022

J. Lightwave Technol.

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Optical fiber lasers assisted by microdrilled optical fiber tapers

Pérez-Herrera

Pallarés-Aldeiturriaga

Judez

et al. 2019

Opt. Lett.

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Gamma Radiation-Induced Effects over an Optical Fiber Laser: Towards New Sensing Applications

Pérez-Herrera

Stăncălie

Cabezudo

et al. 2020

Sensors

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In the present work, the effect of gamma radiation on the performance of different types of erbium-doped fibers (EDFs) when they are used in a fiber ring cavity (FRC) configuration is studied. Several pieces of commercial EDF are gamma-ray irradiated with different doses to evaluate the output power variations over time. The influence of different doses, from 150 Gy to 1000 Gy, over the output power level measurement and their amplified spontaneous emission (ASE) are experimentally evaluated both in the C and L bands. By using an FRC configuration we can detect the presence of gamma radiation. We can also estimate the irradiation doses applied to EDFs by measuring the slope of the short-term emission power.

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Gamma Radiation Measurements using an Optical Fiber Laser

Abstract: A fiber ring laser cavity configuration was used to analyze the effect of gamma-irradiation over the performance of different types of erbium doped fibers. Preliminary results validates this method to monitor gamma-radiation in real time.

Cited by 3 publications

References 5 publications

High Performance Fiber Laser Resonator for Dual Band (C and L) Sensing

High Performance Fiber Laser Resonator for Dual Band (C and L) Sensing

Optical fiber lasers assisted by microdrilled optical fiber tapers

Gamma Radiation-Induced Effects over an Optical Fiber Laser: Towards New Sensing Applications

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