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

Sanchez-Gonzalez, Arturo; Pérez-Herrera, Rosa Ana; Roldán-Varona, Pablo; Rodŕıguez-Cobo, Luis; López‐Higuera, J. M.; Lopez-Amo, M.

doi:10.1109/jlt.2022.3170124

Cited by 4 publications

(2 citation statements)

References 33 publications

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“…SLM operation persisted in both cases, discarding any notions that this behavior was due to mode competition and mode hopping annihilation by means of inter-channel seed light interaction [22]. Instead, the SLM lasing seemed to be exclusively due to the random nature of the reflector, as suggested by previous studies [23].…”

Section: Laser Performancesupporting

confidence: 53%

A Dual-Wavelength Fiber Laser Sensor with Temperature and Strain Discrimination

Sanchez-Gonzalez

Pérez-Herrera

Roldán-Varona

et al. 2022

Sensors

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This work presents a dual-wavelength C-band erbium-doped fiber laser assisted by an artificial backscatter reflector. This fiber-based reflector, inscribed by femtosecond laser direct writing, was fabricated into a single mode fiber with a length of 32 mm. The dual-wavelength laser obtained, centered at 1527.7 nm and 1530.81 nm, showed an optical signal-to-noise ratio over 46 dB when pumped at 150 mW. Another feature of this laser was that the power difference between the two channels was just 0.02 dB, regardless of the pump power, resulting in a dual emission laser with high equalization. On the other hand, an output power level and a central wavelength instability as low as 0.3 dB and 0.01 nm were measured, in this order for both channels. Moreover, the threshold pump power was 40 mW. Finally, the performance of this dual-wavelength fiber laser enhanced with a random reflector for sensing applications was studied, achieving the simultaneous measurement of strain and temperature with sensitivities around 1 pm/με and 9.29 pm/°C, respectively.

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Section: Laser Performancesupporting

confidence: 53%

A Dual-Wavelength Fiber Laser Sensor with Temperature and Strain Discrimination

Sanchez-Gonzalez

Pérez-Herrera

Roldán-Varona

et al. 2022

Sensors

Self Cite

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“…Fuente: (Sánchez et al, 2010) Cada factor que influya sobre el arreglo espacial afecta su porosidad y en consecuencia su Densidad aparente, por ende los suelos con mayor proporción de poros presentan menor DA que aquéllos que están más compactados. De allí que la DA de un suelo da una idea de su grado de compactación.…”

Section: Método Del Cilindro Fundamentounclassified

EL SUELO Principios y Análisis

Rivera¹,

Sampedro²,

Altamirano³

et al. 2023

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Random Raman Fiber Laser as a Liquid Refractive Index Sensor

Han,

Ma,

et al. 2023

Photonic Sens

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In this paper, a new concept of forward-pumped random Raman fiber laser (RRFL)-based liquid refractive index sensing is proposed for the first time. For liquid refractive index sensing, the flat fiber end immersed in the liquid can act as the point reflector for generating random fiber lasing and also as the sensing head. Due to the high sensitivity of the output power of the RRFL to the reflectivity provided by the point reflector in the ultralow reflectivity regime, the proposed RRFL is capable of achieving liquid refractive index sensing by measuring the random lasing output power. We theoretically investigate the effects of the operating pump power and fiber length on the refractive index sensitivity for the proposed RRFL. As a proof-of-concept demonstration, we experimentally realize high-sensitivity half-open short-cavity RRFL-based liquid refractive index sensing with the maximum sensitivity and the sensing resolution of–39.88W/RIU and 2.5075×10−5 RIU, respectively. We also experimentally verify that the refractive index sensitivity can be enhanced with the shorter fiber length of the RRFL. This work extends the application of the random fiber laser as a new platform for highly-sensitive refractive index sensing in chemical, biomedical, and environmental monitoring applications, etc.

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

Cited by 4 publications

References 33 publications

A Dual-Wavelength Fiber Laser Sensor with Temperature and Strain Discrimination

A Dual-Wavelength Fiber Laser Sensor with Temperature and Strain Discrimination

EL SUELO Principios y Análisis

Random Raman Fiber Laser as a Liquid Refractive Index Sensor

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