Experimental Study of Hollow-Core Photonic Crystal Fiber Optical Switching Effect in Liquid Nitrogen Environment
Abstrak
In this study, the hollow-core photonic crystal fiber (HC-PCF) optical switching effect in liquid nitrogen (LN<sub>2</sub>) environment is demonstrated and experimentally investigated. Turning off the light transmission is realized by the liquefaction of air present in the airholes of the HC-PCF when the fiber is immersed in LN<sub>2</sub>, and turning on the light transmission is realized by the evaporation of air when the fiber is taken out of LN<sub>2</sub>. The extinction ratio of the optical switching effect is found to be ∼50 dB; furthermore, the turn-on and turn-off time of the optical switching effect can reach ∼8 s and ∼3 s, respectively. Thus, optical switching effect in a HC-PCF in LN<sub>2</sub> environment can be easily realized, which is beneficial in building all-fiber in-line low-frequency optical-switching systems that can be potentially applied in areas such as fiber sensors.
Topik & Kata Kunci
Penulis (5)
Ningfang Song
Yunhao Zhu
Xiaobin Xu
Shijie Xu
Fuyu Gao
Akses Cepat
- Tahun Terbit
- 2020
- Sumber Database
- DOAJ
- DOI
- 10.1109/JPHOT.2020.2987965
- Akses
- Open Access ✓