5 Papers
29 Citations
Yi Liu is an academic researcher from Chinese Ministry of Education. The author has contributed to research in topics: Optical circulator & Brillouin zone. The author has an hindex of 2, co-authored 5 publications. Previous affiliations of Yi Liu include Taiyuan University of Technology.
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Papers
Triple Brillouin frequency spacing Brillouin fiber laser sensor for temperature measurement
TL;DR: In this paper, a triple Brillouin frequency spacing sensor for temperature measurement is proposed and demonstrated, where the 1st-order Stokes (S1) and 3rd-order stokes(S3) and 2nd-order STokes (2nd-Order Stokes) are generated by a triple-branching triple-Brillouin fiber laser sensor.
18
Managing Brillouin frequency spacing for temperature measurement with Brillouin fiber laser sensor
TL;DR: In this paper, the authors proposed a method to manage the Brillouin frequency spacing for temperature measurement with a three-port optical circulator with 5-km SMF and adding EDFA to obtain 3rd-order Stokes with triple frequency shift.
15
Patent
Unpumped Er-doped fiber ring-based fiber grating Brillouin fiber laser
Yi Liu,Yao Shang,Xiaogang Yi +2 more
- 23 Nov 2018
TL;DR: In this article, an unpumped Er-doped fiber ring-based fiber grating Brillouin fiber laser has been proposed, which has the advantages and beneficial effects that pumping light can only run in a cavity in one time.
2
Patent
High-accuracy distributed optical fiber sensing system based on narrow linewidth high-order Brillouin Stokes wave
Yi Liu,Yao Shang,Xiaogang Yi +2 more
- 18 Dec 2018
TL;DR: In this article, a high-accuracy distributed optical fiber sensing system based on a narrow linewidth high-order Brillouin Stokes wave was presented, which consists of an adjustable semiconductor laser (1), a single-frequency semiconductor (1b), a frequency locking device (2), a first polarization controller (3a), a second polarization controller(3b), an acousto-optic modulator (4), a one-wayoptical fiber amplifier (5a), an optical circulator (6), a multi-wavelength narrow lin
Brillouin Fiber Laser Sensors
Yi Liu,Zhaomin Tong,Yao Shang,Bingchen Han,Qing Bai,Rongrong Guo,Pengfei Chen +6 more
- 01 Jan 2020
TL;DR: In this article, a single longitudinal mode (SLM) Brillouin fiber laser with cascaded ring Fabry-Perot resonator, a SLM triple ring BFL with a saturable absorber ring (SAR) resonator and a stable multiwavelength (MW-SLM-DRBFL) are proposed and demonstrated.