First Demonstration of Co-Pumped Single-Frequency Raman Fiber Amplifier With Spectral-Broadening-Free Property Enabled by Ultra-Low Noise Pumping

被引：13

作者：

Miao, Yu ^{[1
]}

Ma, Pengfei ^{[1
,2
,3
]}

Liu, Wei ^{[1
]}

Zhang, Hanwei ^{[1
,2
,3
]}

Zhou, Pu ^{[1
,2
,3
]}

机构：

[1] Natl Univ Def Technol, Coll Adv Interdisciplinary Studies, Changsha 410073, Hunan, Peoples R China

[2] State Key Lab Pulsed Power Laser Technol, Changsha 410073, Hunan, Peoples R China

[3] Hunan Prov Key Lab High Energy Laser Technol, Changsha 410073, Hunan, Peoples R China

来源：

IEEE ACCESS | 2018年 / 6卷

基金：

中国国家自然科学基金;

关键词：

Fiber lasers; optical amplifiers; Raman scattering; RIN TRANSFER; LASER; POWER; NM; EFFICIENCY;

D O I：

10.1109/ACCESS.2018.2882395

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

Single-frequency Raman fiber amplifier (RFA) has great potential applications in many regimes. Traditionally, counter-pumped manner is widely employed for its spectral linewidth broadening suppressing and maintaining single frequency property. In this paper, we propose the first demonstration of a co-pumped single-frequency RFA without linewidth broadening by applying the fiber laser with stable intensity as the pump source. The pump source with stable intensity is generated by cascaded power amplifying of a low noise, phase-modulated single-frequency seed laser. In this case, experimental results show that single frequency property of the RFA could be effectively maintained in the co-pumped manner. The contrast experiment is given with a conventional multi-longitudinal mode fiber oscillator as a pump source, and the linewidth is gradually broadened along with power scaling.

引用

页码：71988 / 71993

页数：6

共 30 条

[1] Continuous-wave pumping in the anomalous- and normal-dispersion regimes of nonlinear fibers for supercontinuum generation [J].