Helically twisted long-period fiber gratings of YOFC single-mode fiber with optical fiber welding machine

• Autorzy: Bai Yunfeng , He Zelong , Bai Jiyuan , Dang Suihu

Identyfikatory

DOI

10.37190/oa210308

• Języki publikacji: EN

Abstrakty

EN

The single-mode fiber provided by YOFC inc is employed for spiral processing by commercial welding machine. It can clearly see the periods structure under the light, but there is no obvious deformation of the fiber core, cladding and surface morphology under a microscope. There is an obvious resonant peak near 1560 nm, half peak width is about 25 nm, the depth of the resonant peak closed to –26 dB, when the period is about 411 μm. It agrees with theoretical calculation results according to the long-period fiber grating coupled-mode theory. The resonance wavelength is caused by coupling between the fundamental mode and the LP₁₄ mode. The responsivities of the helically twisted long-period fiber gratings (H-LPFG) for the temperature is measured, the resonance wavelength is linear with temperature, the slope is 86 pm/°C. Because it is easy to inscribe by commercial welding machine, and has a strong resonance peak, it has potential applications as the temperature sensor.

Słowa kluczowe

EN

YOFC single-mode fiber; helically twisted long-period fiber grating; fundamental mode; cladding mode; coupled mode theory

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Optica Applicata
• Rocznik: 2021
• Tom: Vol. 51, nr 3
• Strony: 407--413
• Opis fizyczny: Bibliogr. 21 poz., rys.

Twórcy

autor

Bai Yunfeng

• Key Laboratory of Micro Nano Optoelectronic Devices and Intelligent Perception Systems, School of Electronic Information and Engineering, Yangtze Normal University, Chongqing, 408100, China

autor

He Zelong

• Key Laboratory of Micro Nano Optoelectronic Devices and Intelligent Perception Systems, School of Electronic Information and Engineering, Yangtze Normal University, Chongqing, 408100, China

autor

Bai Jiyuan

• Key Laboratory of Micro Nano Optoelectronic Devices and Intelligent Perception Systems, School of Electronic Information and Engineering, Yangtze Normal University, Chongqing, 408100, China

autor

Dang Suihu

• Key Laboratory of Micro Nano Optoelectronic Devices and Intelligent Perception Systems, School of Electronic Information and Engineering, Yangtze Normal University, Chongqing, 408100, China

Bibliografia

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