Expand this Topic clickable element to expand a topic
Skip to content
Optica Publishing Group
  • Journal of Lightwave Technology
  • Vol. 38,
  • Issue 6,
  • pp. 1536-1542
  • (2020)

Mode Selective Conversion Enabled by the Long-Period Gratings Inscribed in Elliptical Core Few-Mode Fiber

Not Accessible

Your library or personal account may give you access

Abstract

We demonstrate the fabrication of long-period fiber gratings (LPFGs) in an elliptical core few-mode fiber (e-FMF) by CO2 laser. The mode conversion from fundamental mode to high-order modes (LP11a, LP11b, and LP21a mode) can be realized by the LPFGs with high efficiency of more than 95%. The effect of bending, torsion, temperature, and strain on the resonance wavelength of the e-FMF based LPFG mode converters are experimentally investigated. The temperature and strain sensitivities of the LPFGs are characterized to be −36 pm/°C and −4.9 pm/με, and the LPFGs are found to be insensitive to the bending and torsion. Due to the existence of trench in the e-FMF, the higher-order LP02 and LP31a mode can also be stimulated by the e-FMF based LPFGs with a grating period of 515 μm and 400 μm, respectively. The proposed e-FMF based LPFGs could have a promising prospect in the application of fiber sensing and mode division multiplexing optical communication system.

PDF Article
More Like This
High-order mode conversion in a few-mode fiber via laser-inscribed long-period gratings at 1.55 µm and 2 µm wavebands

Xinyi Zhao, Yunhe Zhao, Yunqi Liu, Zuyao Liu, Chengbo Mou, Lei Shen, Lei Zhang, and Jie Luo
Appl. Opt. 59(34) 10688-10694 (2020)

Long-period fiber gratings inscribed in few-mode fibers for discriminative determination

Bing Li, Xuan Zhan, Ming Tang, Lin Gan, Li Shen, Liang Huo, Songnian Fu, Weijun Tong, and Deming Liu
Opt. Express 27(19) 26307-26316 (2019)

Femtosecond laser inscribed parallel long-period fiber gratings for multi-channel core mode conversion

Chen Jiang, Kaiming Zhou, Bing Sun, Zhiqiang Wang, Ying Wan, Yuehui Ma, Chengbo Mou, Lei Shen, Lei Zhang, Jie Luo, and Yunqi Liu
Opt. Lett. 47(13) 3207-3210 (2022)

Cited By

You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.

Contact your librarian or system administrator
or
Login to access Optica Member Subscription

Select as filters


Select Topics Cancel
© Copyright 2024 | Optica Publishing Group. All Rights Reserved