Single-longitudinal Mode Thulium-doped Fiber Laser Based on Fabry-Pérot Fiber Bragg Grating Filter and Passive Compound Double-rings Cavity

被引：0

作者：

Han W.-G. ^{[1
]}

Yan F.-P. ^{[1
]}

Feng T. ^{[2
]}

Cheng D. ^{[1
]}

Li T. ^{[1
]}

Bai Z.-Y. ^{[1
]}

Qin Q. ^{[1
]}

Yang D.-D. ^{[1
]}

Zhang L.-N. ^{[3
]}

Guo Y. ^{[1
]}

Wang W. ^{[1
]}

Guan B. ^{[1
]}

Zhang X. ^{[1
]}

机构：

[1] Key Laboratory of All Optical Network and Advanced Telecommunication Network, Ministry of Education, Institute of Lightwave Technology, Beijing Jiaotong University, Beijing

[2] Photonics Information Innovation Center, College of Physics Science & Technology, Hebei University, Baoding

[3] Key Laboratory of Solid Laser Technology, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing

来源：

Faguang Xuebao/Chinese Journal of Luminescence | 2021年 / 42卷 / 09期

基金：

中国国家自然科学基金;

关键词：

Fiber Bragg grating; Fiber laser; Single longitudinal mode; Thulium-doped fiber;

D O I：

10.37188/CJL.20210215

中图分类号：

学科分类号：

摘要：

A single-longitudinal-mode(SLM) thulium-doped fiber laser based on an F-P narrowband filter and compound rings cavity is proposed. The compound rings incorporated in the cavity can help to achieve SLM lasing by adjusting the cavity FSR and it also plays the role of narrowband filtering. A theoretical model which can numerically calculate the transmission spectrum of the complex multi-ring sub-cavity filter is proposed. The output wavelength of the laser source is 1 941.56 nm, and the optical signal-to-noise ratio is 55.8 dB. The wavelength and power fluctuations within 70 min were less than 0.019 nm and 1.464 dB, respectively. Experimental results also show that the laser operates in a stable SLM state. The frequency noise characteristic of the proposed SLM laser was measured by a homemade unbalanced Michelson interferometer, and laser linewidth under different measurement time was estimated from the frequency noise spectra based on the β-separation line method. The calculated laser linewidth in 2 ms measurement time is 14.194 kHz. © 2021, Science Press. All right reserved.

引用

页码：1419 / 1426

页数：7

共 24 条

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