Xi Guo, Zhikun Xing, Huabao Qin, Qizhen Sun, Deming Liu, Lin Zhang, Zhijun Yan, "Study on polarization spectrum and annealing properties of 45°-tilted fiber gratings," Chin. Opt. Lett. 17, 050601 (2019)
- Chinese Optics Letters
- Vol. 17, Issue 5, 050601 (2019)
Fig. 1. Schematic diagram of the principle of 45°-TFGs.
Fig. 2. Setup of the 45°-TFG fabrication system.
Fig. 3. Experimental setup for measuring PER of 45°-TFGs.
Fig. 4. Whole spectrum of the PER of 45°-TFGs inscribed in (a) the photosensitive fiber (SM-1500) and (b) SMF-28.
Fig. 5. Experimental setup for measuring the polarization distribution of 45°-TFGs.
Fig. 6. Polarization distribution of a 45°-TFG and pristine fiber.
Fig. 7. (a) Experimental setup for measuring the thermal influence on the PER response of 45°-TFGs. (b) Time–temperature program on the vacuum tube furnace.
Fig. 8. Thermal response on the PER of 45°-TFGs at four typical wavelengths.
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