Dual-parameter sensing characterisitics of long period fiber grating cascaded with fiber MZ structure fabricated by CO<sub>2</sub> laser

Chao, 刘 超 Liu; Wen, 张 雯 Zhang; Mingli, 董明利 Dong; Xiaoping, 娄小平 Lou; Lianqing, 祝连庆 Zhu

doi:10.3788/irla201746.0922001

Cited by 2 publications

(1 citation statement)

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“…The light being leaked at the incident end will be transmitted in the cladding and be converted into heat, so that the head of the optical fiber would be damaged; if the light is absorbed by the coating layer during the transmission process, it will also be converted into heat, so that the optical fiber would be damaged. At present quartz endcap fused at input end is the most common methods for the improvement of power limit of optical fiber coupling [1][2][3][4], but which can't strip out the stray light.…”

Section: Introductionmentioning

confidence: 99%

The new method of fiber coupling for high power laser

Song,

Kun

2023

Third International Computing Imaging Conference (CITA 2023)

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We verify its advantage for fiber coupling through experiments base on large clad fiber, and which core/clad diameter is 196.5/788 μm. The coupling fiber with core/clad diameter of 200/220 μm was fused behind the large clad fiber, and which diameter of the fiber core is bigger than or equal to the diameter of the fiber core of the large clad fiber. The output laser power is 528 W at the incident power 600 W, and the corresponding fiber coupling efficiency is 88%.

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Section: Introductionmentioning

confidence: 99%

The new method of fiber coupling for high power laser

Song,

Kun

2023

Third International Computing Imaging Conference (CITA 2023)

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Application of MZI Symmetrical Structure With Fiber Balls and Seven-Core Fiber in Microdisplacement Measurement

Zhao

Song

et al. 2018

Photonic Sens

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An optical fiber microdisplacement sensor based on symmetric Mach-Zehnder interferometer (MZI) with a seven-core fiber and two single-mode fiber balls is proposed. The rationality and manufacturing process of the MZI sensing structure are analyzed. The fabrication mechanism of the Mach-Zehnder sensor by CO2 laser is described in detail. Experimental results show that temperature sensitivities of the two dips are 98.65 pm/ and 89.72pm/ ℃ ℃ , respectively. The microdisplacement sensitivities are 2017.71 pm/mm and 2457.92 pm/mm, respectively. The simultaneous measurement of temperature and microdisplacement is demonstrated based on the sensitive matrix. The proposed Mach-Zehnder interference sensor exhibits the advantages of compact structure, simple manufacturing process, and high reliability.

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Dual-parameter sensing characterisitics of long period fiber grating cascaded with fiber MZ structure fabricated by CO₂ laser

Cited by 2 publications

References 0 publications

The new method of fiber coupling for high power laser

The new method of fiber coupling for high power laser

Application of MZI Symmetrical Structure With Fiber Balls and Seven-Core Fiber in Microdisplacement Measurement

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Dual-parameter sensing characterisitics of long period fiber grating cascaded with fiber MZ structure fabricated by CO2 laser

Cited by 2 publications

References 0 publications

The new method of fiber coupling for high power laser

The new method of fiber coupling for high power laser

Application of MZI Symmetrical Structure With Fiber Balls and Seven-Core Fiber in Microdisplacement Measurement

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Product

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Dual-parameter sensing characterisitics of long period fiber grating cascaded with fiber MZ structure fabricated by CO₂ laser