- Tytuł:
- 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 - Powiązania:
- https://bibliotekanauki.pl/articles/2033950.pdf
- Data publikacji:
- 2021
- Wydawca:
- Politechnika Wrocławska. Oficyna Wydawnicza Politechniki Wrocławskiej
- Tematy:
-
YOFC single-mode fiber
helically twisted long-period fiber grating
fundamental mode
cladding mode
coupled mode theory - Opis:
- 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.
- Źródło:
-
Optica Applicata; 2021, 51, 3; 407-413
0078-5466
1899-7015 - Pojawia się w:
- Optica Applicata
- Dostawca treści:
- Biblioteka Nauki
Artykuł