scholarly journals Modulated fiber ring laser and its application in high-sensitivity temperature sensors

2016 ◽  
Author(s):  
R. A. Perez-Herrera ◽  
S. Tainta ◽  
M. J. Erro ◽  
M. Lopez-Amo
Keyword(s):  
Ring Laser ◽  
High Sensitivity ◽  
Temperature Sensors ◽  
Fiber Ring Laser ◽  
Fiber Ring

High-sensitivity sucrose erbium-doped fiber ring laser sensor

2017 ◽  
Vol 56 (2) ◽  
pp. 026116 ◽  
Author(s):  
Wurood Abdulkhaleq Khaleel ◽  
Abdul Hadi M. Al-Janabi
Keyword(s):  
Ring Laser ◽  
High Sensitivity ◽  
Laser Sensor ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Erbium Doped

scholarly journals Liquid Crystal-Embedded Hollow Core Fiber Temperature Sensor in Fiber Ring Laser

2021 ◽  
Vol 11 (15) ◽  
pp. 7103
Author(s):  
Weihao Lin ◽  
Shengjie Zhou ◽  
Yibin Liu ◽  
Mang I. Vai ◽  
Liyang Shao
Keyword(s):  
Liquid Crystal ◽  
Temperature Variation ◽  
Temperature Sensor ◽  
Ring Laser ◽  
High Sensitivity ◽  
Microbial Culture ◽  
Hollow Core ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Core Fiber

An optical fiber temperature sensor based on Mach–Zehnder interferometer and thermo-optic effect of the liquid crystal (LC) in fiber ring laser (FRL) system is proposed and experimentally demonstrated. The LC is infiltrated into the core of hollow core fiber, and the resonant wavelength is more sensitive to temperature variation due to the interaction between the incident light and the cavity infiltrating liquid crystal with high thermal light coefficient. Meanwhile, the FRL system was further used to make the sensor have good performance in the case of high signal-to-noise ratio (∼35 dB), narrow half-height width (FWHM = 0.15 nm), and high sensitivity in the temperature range from 20 °C to 50 °C, with the maximum sensitivity of 1.318 nm/°C. As far as we know, in the FRL system, the liquid crystal material has a better temperature sensing performance than the previous fiber. Nevertheless, the system has the advantages of good repeatability, low cost, simple production, small volume, high sensitivity. In marine microbial culture and detection, it is necessary to carry out high sensitivity measurement within a small temperature variation range. This reliable and excellent temperature performance has a potential application prospect.

scholarly journals A Switchable Erbium Doped Fiber Ring Laser System for Temperature Sensors Multiplexing

2013 ◽  
Vol 13 (6) ◽  
pp. 2279-2283 ◽  
Author(s):  
Sergio Rota-Rodrigo ◽  
Luis Rodriguez-Cobo ◽  
Maria Angeles Quintela ◽  
Jose Miguel Lopez-Higuera ◽  
Manuel Lopez-Amo
Keyword(s):  
Ring Laser ◽  
Laser System ◽  
Temperature Sensors ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Erbium Doped

scholarly journals A Fiber Ring Laser Sensor with a Side Polished Evanescent Enhanced Fiber for Highly Sensitive Temperature Measurement

Micromachines ◽  
2021 ◽  
Vol 12 (5) ◽  
pp. 586
Author(s):  
Weihao Lin ◽  
Yibin Liu ◽  
Liyang Shao ◽  
Mang I. Vai
Keyword(s):  
Temperature Sensor ◽  
Ring Laser ◽  
High Sensitivity ◽  
Laser Cavity ◽  
Single Mode ◽  
Laser Sensor ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Highly Sensitive ◽  
Side Polished Fiber

We demonstrate a highly sensitive and practical fiber-based temperature sensor system. The sensor is constructed based on a fiber ring laser (FRL) as well as a side-polished fiber filled with isopropanol. The laser cavity of the sensing part fiber is polished by the wheel fiber polishing system with residual thickness (RT) is selected to detect the temperature in the FRL. Thanks to the high thermo-optic coefficient of isopropanol, the sensitivity of the proposed temperature sensor could be effectively improved by filling isopropanol in the cost-less side polished single mode fiber. Refractive index (RI) of isopropanol changes with the surrounding temperature variation allowing high-sensitivity temperature sensing. Experimental results demonstrate that the side polished fiber can efficiently excite high-order cladding modes which enhance the modular interference increase the interaction between the evanescent wave and the isopropanol. Besides, the results show that the sensitivity can be as high as 2 nm/°C in the temperature range of 25 °C–35°C.

scholarly journals Temperature sensor based on Er-doped Cascaded-Peanut Taper Structure in-line interferometer in fiber ring laser

2021 ◽  
pp. 1-1
Author(s):  
Weihao Lin ◽  
Fang Zhao ◽  
Li-Yang Shao ◽  
Mang I Vai ◽  
Perry Ping Shum ◽  
...  
Keyword(s):  
Temperature Sensor ◽  
Ring Laser ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Er Doped

In-Fiber Macau Zehnder Interferometer Sensor Based on Er doped Fiber Peanut Structure in Fiber Ring Laser

2021 ◽  
pp. 1-1
Author(s):  
Weihao Lin ◽  
Liyang Shao ◽  
Mang I Vai ◽  
Perry Ping Shum ◽  
Liu Shuaiqi ◽  
...  
Keyword(s):  
Ring Laser ◽  
Zehnder Interferometer ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Er Doped

Optical Comb Peculiarities of High-energy Chirped-pulse Erbium-doped All-fiber Ring Laser

2020 ◽  
Author(s):  
Dmitriy A. Dvoretskiy ◽  
Ilya O. Orekhov ◽  
Stanislav G. Sazonkin ◽  
Yan Zh. Ososkov ◽  
Anton O. Chernutsky ◽  
...  
Keyword(s):  
Ring Laser ◽  
High Energy ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Chirped Pulse ◽  
Erbium Doped
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