Simultaneous Measurement of Temperature and Relative Humidity Using a Dual-Wavelength Erbium-Doped Fiber Ring Laser Sensor

Mądry, Mateusz; Alwis, Lourdes S. M.; Binetti, Leonardo; Pajewski, L.; Bereś-Pawlik, E.

doi:10.1109/jsen.2019.2922041

Cited by 27 publications

(5 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It is important to note that the PMF responds simultaneously to temperature and refractive index after being tapered. As a result, there is a cross-sensitivity phenomenon that can be resolved by establishing a dual parameter matrix for dual-wavelength lasers by cascading FBG with our created structure [35]. Here, we concentrate on creating extremely high SNR and narrow bandwidth laser sensing devices.…”

Section: Working Principle and Experimental Setupmentioning

confidence: 99%

Adaptive Fiber Ring Laser Based on Tapered Polarization Maintaining Fiber in Sagnac Loop for Temperature and Salinity Sensing

et al. 2023

View full text Add to dashboard Cite

An optical fiber ring laser (FRL) cavity-based sensitive temperature and salinity sensor is proposed and experimentally demonstrated. The sensor consists of a Sagnac loop with a waist of 15 µm and a total length of 30 cm made of tapered polarization-maintaining fiber (PMF). Sagnac loop dual parameter sensing was theoretically modeled and presented. The salinity sensitivity of 0.173 nm/‰ was made possible by the efficient interaction between the tapered PMF cladding mode and the external refractive index. In addition, temperature sensitivity of 0.306 nm/°C was achieved through ultrahigh birefringence of PMF. Apart from that, the previous sensing system used a broadband light source (BBS) as the input light, resulting in a wide bandwidth and a poor signal-to-noise ratio (SNR). The Sagnac loop integrated into the FRL system can achieve a high SNR of approximately 50 dB and a narrow bandwidth of 0.15 nm while serving as the filter and sensor head. Additionally, the developed sensor has the advantages of simple design, low cost, and easy fabrication. It can also extend sensing distance indefinitely within a given range, which is anticipated to have positive effects on the testing of marine environments in laboratories.

show abstract

Section: Working Principle and Experimental Setupmentioning

confidence: 99%

Adaptive Fiber Ring Laser Based on Tapered Polarization Maintaining Fiber in Sagnac Loop for Temperature and Salinity Sensing

et al. 2023

View full text Add to dashboard Cite

show abstract

“…However, the designed structure requires photoelectric detectors and oscilloscopes to perform photoelectric conversion, which reduces the system efficiency. Mateusz et al realized the simultaneous measurement of humidity and temperature by using a cascaded fiber Bragg grating (FBG) [ 32 ]. However, due to the inherent properties of the FBG, the detection sensitivity obtained is particularly low.…”

Section: Introductionmentioning

confidence: 99%

In-Line Mach Zehnder Interferometer Based on Ytterbium Doped Fiber with Up-Taper Structure in Fiber Ring Laser and Its Application in Sensing

Lin

Liu

Shum

et al. 2022

Sensors

View full text Add to dashboard Cite

We report an ytterbium (Yb) doped fiber Mach Zehnder interferometer (MZI) based on the up-taper fiber structure in a fiber ring laser (FRL) cavity. Different from the traditional FRL sensing system, in which additional filters are required, the designed structure simultaneously acts as a filter, sensor and gain medium. Furthermore, thanks to the high thermal–optical coefficient of Yb doped fiber, the temperature sensitivity of 0.261 nm/°C can be achieved in the range of 10–50 °C. In addition, benefiting from the unique characteristics of the laser system itself, the designed structure has a narrower linewidth (−0.2 nm) and a higher signal-to-noise ratio (SNR) (−40 dB) than the sensor system based on a broadband light source (BBS). Meanwhile, the refractive index (RI) response and stability of the system are measured. The RI sensitivity is up to 151 nm/RIU, and the wavelength fluctuation range within two hours is less than 0.2 nm. Therefore, the designed structure is expected to play a significant role in human life safety monitoring, aircraft engine temperature monitoring, etc.

show abstract

“…In order to overcome these shortcomings and obtain good sensing performance, fiber ring laser has been widely studied in recent years. Various types of Interferometer Fiber structures are embedded in the FRL to form a sensing system to measure biomolecules [14], magnetic field [15], electric field [16], stress [17], curvature [8], and environmental humidity [18]. In the sensing system, the interferometer plays a role of filtering, and its passband is affected by the exotic environment.…”

Section: Introductionmentioning

confidence: 99%

In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser

Lin¹,

Zhou

Shao

et al. 2021

IEEE Access

View full text Add to dashboard Cite

It is demonstrated that in this paper a peanut shaped structure cascaded with up-taper fiber structure can realize the inter mode interference between the Erbium doped fiber (EDF) core mode and cladding modes in fiber ring laser (FRL). A simple and inexpensive Mach-Zehnder interferometer (MZI) based on this structure is proposed. Shown from experimental results, the optical intensity of the core mode can be coupled into the cladding modes in the first peanut-shaped structure. Then, the light in the cladding modes can be recoupled into the core mode in the up-taper structure. A high-quality interference spectrum with a signal to noise ratio about 50 dB was observed. Besides, the structure exhibits good mechanical stability when compared to MZIs based on taper or offset structure. The temperature sensitivity of the FRL sensor is 301 pm/℃ and the RI sensitivity is 156 nm/RIU. This kind of MZI will have potential applications in remote sensing technique and the development of life and health.

show abstract

Simultaneous Measurement of Temperature and Relative Humidity Using a Dual-Wavelength Erbium-Doped Fiber Ring Laser Sensor

Cited by 27 publications

References 40 publications

Adaptive Fiber Ring Laser Based on Tapered Polarization Maintaining Fiber in Sagnac Loop for Temperature and Salinity Sensing

Adaptive Fiber Ring Laser Based on Tapered Polarization Maintaining Fiber in Sagnac Loop for Temperature and Salinity Sensing

In-Line Mach Zehnder Interferometer Based on Ytterbium Doped Fiber with Up-Taper Structure in Fiber Ring Laser and Its Application in Sensing

In-Fiber Mach–Zehnder Interferometer Based on Er Doped Up-Taper and Peanut-Shaped Fiber Structure in Fiber Ring Laser

Contact Info

Product

Resources

About