A fiber laser temperature sensor based on SMF core-offset structure

Hao, Xia; Tong, Zhengrong; Zhang, Weihua; Cao, Ye

doi:10.1016/j.optcom.2014.08.065

Cited by 46 publications

(19 citation statements)

References 18 publications

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“…A number of different strategies have been successfully applied in order to obtain feasible and reliable temperature sensing, e.g., by exploiting the temperature dependence of integrated systems and/or single elements based on fiber Bragg gratings (FBGs), long period gratings (LPGs), Fabry-Perot (FP) cavity lasers, Sagnac loops, interferometers, off-set spliced fibers, etc . [ 1 , 2 , 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 , 19 ]. Intrinsic FP fiber-optic temperature sensors can be obtained by employing the variation with temperature of the reflectivity exhibited by a fiber splice.…”

Section: Introductionmentioning

confidence: 99%

“…The central wavelength shift of the ring cavity laser including the core-offset structure is proportional to the temperature change. By following this strategy, a sensitivity of 0.0449 nm/°C in the range of 30–270 °C was demonstrated [ 2 ]. In [ 3 ] the FP cavity was formed by splicing a side-hole microstructured fiber (MF) and a solid SMF on a fuse-silica tube; a high gas pressure was obtained inside the FP cavity through the MF holes.…”

Section: Introductionmentioning

confidence: 99%

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Electromagnetic Modelling of Fiber Sensors for Low-Cost and High Sensitivity Temperature Monitoring

Scarcia

Palma

Falconi

et al. 2015

Sensors

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An accurate design of an innovative fiber optic temperature sensor is developed. The sensor is based on a cascade of three microstructured optical fibers (MOFs). In the first one a suitable cascade of long period gratings is designed into the core. A single mode intermediate and a rare-earth activated Fabry-Perot optical cavity are the other two sensor MOF sections. An exhaustive theoretic feasibility investigation is performed employing computer code. The complete set-up for temperature monitoring can be obtained by utilizing only a low cost pump diode laser at 980 nm wavelength and a commercial optical power detector. The simulated sensitivity S = 315.1 μW/°C and the operation range ΔT = 100 °C is good enough for actual applications.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Electromagnetic Modelling of Fiber Sensors for Low-Cost and High Sensitivity Temperature Monitoring

Scarcia

Palma

Falconi

et al. 2015

Sensors

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“…Taking advantage of the spectral tunability, wavelength tunable fiber laser has been proved as a potential seed laser source benefiting numerous applications in optical communication [173], optical sensing [174], materials processing [175], spectroscopy [176] and signal processing [177]. Generally, a tunable spectral filter is required to achieve the lasing wavelength tuning ability such as Fabry-Perot interferometer (FPI) [178,179], Mach-Zehnder interferometer (MZI) [180], graphene-coated filter [181], chirped FBG [182], W-shape LPG [183] and fiber birefringence filter [184,185].…”

Section: Wavelength Tunable Mode-locked Fiber Laser Via Aomcmentioning

confidence: 99%

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

Shi

et al. 2020

Nanophotonics

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The burgeoning advances of spatial mode conversion in few-mode fibers emerge as the investigative hotspot in novel structured light manipulation, in that, high-order modes possess a novel fundamental signature of various intensity profiles and unique polarization distributions, especially orbital angular momentum modes carrying with phase singularity and spiral wave front. Thus, control of spatial mode generation becomes a crucial technique especially in fiber optics, which has been exploited to high capacity space division multiplexing. The acousto-optic interactions in few-mode fibers provide a potential solution to tackle the bottleneck of traditional spatial mode conversion devices. Acousto-optic mode conversion controlled by microwave signals brings tremendous new opportunities in spatial mode generation with fast mode tuning and dynamic switching capabilities. Besides, dynamic mode switching induced by acousto-optic effects contributes an energy modulation inside a laser cavity through nonlinear effects of multi-mode interaction, competition, which endows the fiber laser with new functions and leads to the exploration of new physical mechanism. In this review, we present the recent advances of controlling mode switch and generation employing acousto-optic interactions in few-mode fibers, which includes acousto-optic mechanisms, optical field manipulating devices and novel applications of spatial mode control especially in high-order mode fiber lasers.

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“…In consequence, the influence of the grating dispersion on mode locking operation is negligible. Also, taking the general conditions of DS into account, the net dispersion is managed to be + 0.05 ps 2 .…”

Section: Characterization Of Polarizing Fiber Grating and Laser Confimentioning

confidence: 99%

“…Recently, wavelength-tunable mode locked fiber laser has emerged as a candidate light seed for diverse applications, e.g. material processing [1], fiber senor [2], spectroscopy [3], optical signal processing [4] as well as optical communication [5]. Especially, from the perspective of applications in term of optical communication, the L-band (1565 nm~1625 nm) is playing a great role at present due to the demanding requirement of communication capacity [6].…”

Section: Introductionmentioning

confidence: 99%

23 MHz widely wavelength-tunable L-band dissipative soliton from an all-fiber Er-doped laser

et al. 2019

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Via careful choice of Er-doped fiber length in the cavity, a widely wavelengthtunable L-band dissipative soliton all-fiber Er-doped laser incorporating a L-band optimized polarizing fiber grating device is experimentally demonstrated. The laser delivers 15.38 ps dissipative soliton pulses centered at 1597.34 nm with 3 dB bandwidth of 34.6 nm under 622 mW pump power. The pulse repetition rate is 23 MHz. After using single mode fiber at external cavity, the pulse duration is compressed to 772 fs. With nonlinear polarization rotation-based intracavity comb filter, the central wavelength of the generated dissipative soliton can be tuned from 1567 nm to 1606 nm with a spectral tuning range of 39 nm, which, to the best of our knowledge, is the widest tuning range yet reported for a dissipative soliton fiber laser working in communication band.

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A fiber laser temperature sensor based on SMF core-offset structure

Cited by 46 publications

References 18 publications

Electromagnetic Modelling of Fiber Sensors for Low-Cost and High Sensitivity Temperature Monitoring

Electromagnetic Modelling of Fiber Sensors for Low-Cost and High Sensitivity Temperature Monitoring

Recent progress of dynamic mode manipulation via acousto-optic interactions in few-mode fiber lasers: mechanism, device and applications

23 MHz widely wavelength-tunable L-band dissipative soliton from an all-fiber Er-doped laser

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