Study on polarization spectrum and annealing properties of 45°-tilted fiber gratings

Xi Guo; Zhikun Xing; Huabao Qin; Qizhen Sun; Deming Liu; Lin Zhang; Zhijun Yan

doi:10.3788/COL201917.050601

Study on polarization spectrum and annealing properties of 45°-tilted fiber gratings

Xi Guo
, Zhikun Xing
, Huabao Qin
, Qizhen Sun
, Deming Liu
, Lin Zhang
, Zhijun Yan^*

^*Corresponding author for this work

Huazhong University of Science and Technology

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

We have investigated the whole polarization-extinction-ratio (PER) spectrum and annealing properties of 45°-tilted fiber gratings (45°-TFGs). Experimental results show the PER spectrum of 45°-TFGs is a Gaussianlike profile and covers a 540 nm bandwidth from 1260 to 1800 nm, in which the bandwidth with PER greater than 10 dB is over 250 nm. The output polarization distribution of 45°-TFGs was analyzed by employing a bulk linear polarizer, and the results show a perfect figure "8", which indicates that the 45°-TFG is a type of linear polarizer. Moreover, the annealing property of 45°-TFGs was measured up to 700℃, in which the PER of the grating started to decrease at 300℃ and reached the minimum at 700℃. Based on these results, the 45°-TFGs can be used as an ultra-wide bandwidth in-fiber polarizing device.

Original language	English
Article number	050601
Journal	Chinese Optics Letters
Volume	17
Issue number	5
DOIs	https://doi.org/10.3788/COL201917.050601
Publication status	Published - 20 May 2019

Funding

This work was supported by the National Natural Science Foundation of China (No. 61505244), the Fundamental Research Funds for the Central Universities (No. HUST:2017KFYXJJ033), the Science Fund for Creative Research Groups of the Natural Science Foundation of Hubei (No. 2018CFA004), and the Major Projects of Technical Innovation of Hubei (No. 2018AAA040).

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abstract = "We have investigated the whole polarization-extinction-ratio (PER) spectrum and annealing properties of 45°-tilted fiber gratings (45°-TFGs). Experimental results show the PER spectrum of 45°-TFGs is a Gaussianlike profile and covers a 540 nm bandwidth from 1260 to 1800 nm, in which the bandwidth with PER greater than 10 dB is over 250 nm. The output polarization distribution of 45°-TFGs was analyzed by employing a bulk linear polarizer, and the results show a perfect figure {"}8{"}, which indicates that the 45°-TFG is a type of linear polarizer. Moreover, the annealing property of 45°-TFGs was measured up to 700℃, in which the PER of the grating started to decrease at 300℃ and reached the minimum at 700℃. Based on these results, the 45°-TFGs can be used as an ultra-wide bandwidth in-fiber polarizing device.",

author = "Xi Guo and Zhikun Xing and Huabao Qin and Qizhen Sun and Deming Liu and Lin Zhang and Zhijun Yan",

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T1 - Study on polarization spectrum and annealing properties of 45°-tilted fiber gratings

AU - Guo, Xi

AU - Xing, Zhikun

AU - Qin, Huabao

AU - Sun, Qizhen

AU - Liu, Deming

AU - Zhang, Lin

AU - Yan, Zhijun

PY - 2019/5/20

Y1 - 2019/5/20

N2 - We have investigated the whole polarization-extinction-ratio (PER) spectrum and annealing properties of 45°-tilted fiber gratings (45°-TFGs). Experimental results show the PER spectrum of 45°-TFGs is a Gaussianlike profile and covers a 540 nm bandwidth from 1260 to 1800 nm, in which the bandwidth with PER greater than 10 dB is over 250 nm. The output polarization distribution of 45°-TFGs was analyzed by employing a bulk linear polarizer, and the results show a perfect figure "8", which indicates that the 45°-TFG is a type of linear polarizer. Moreover, the annealing property of 45°-TFGs was measured up to 700℃, in which the PER of the grating started to decrease at 300℃ and reached the minimum at 700℃. Based on these results, the 45°-TFGs can be used as an ultra-wide bandwidth in-fiber polarizing device.

AB - We have investigated the whole polarization-extinction-ratio (PER) spectrum and annealing properties of 45°-tilted fiber gratings (45°-TFGs). Experimental results show the PER spectrum of 45°-TFGs is a Gaussianlike profile and covers a 540 nm bandwidth from 1260 to 1800 nm, in which the bandwidth with PER greater than 10 dB is over 250 nm. The output polarization distribution of 45°-TFGs was analyzed by employing a bulk linear polarizer, and the results show a perfect figure "8", which indicates that the 45°-TFG is a type of linear polarizer. Moreover, the annealing property of 45°-TFGs was measured up to 700℃, in which the PER of the grating started to decrease at 300℃ and reached the minimum at 700℃. Based on these results, the 45°-TFGs can be used as an ultra-wide bandwidth in-fiber polarizing device.

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Study on polarization spectrum and annealing properties of 45°-tilted fiber gratings

Abstract

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