Polarization maintaining, narrow linewidth fiber laser with >1kW output power using a novel dual sine and noise modulation for enhanced SBS suppression

2021 ◽  
Author(s):  
Roopa Prakash ◽  
B. S. Vikram ◽  
V. R. Supradeepa
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Narrow Linewidth ◽  
Polarization Maintaining

scholarly journals Monolithic high-average-power linearly polarized nanosecond pulsed fiber laser with near-diffraction-limited beam quality

2018 ◽  
Vol 6 ◽  
Author(s):  
Long Huang ◽  
Pengfei Ma ◽  
Daren Meng ◽  
Lei Li ◽  
Rumao Tao ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Linear Polarization ◽  
Beam Quality ◽  
Average Power ◽  
Narrow Linewidth ◽  
High Average Power ◽  
Maximal Output Power ◽  
Maximal Output ◽  
Pulsed Fiber Laser

An all-fiberized high-average-power narrow linewidth ns pulsed laser with linear polarization is demonstrated. The laser system utilizes a typical master oscillator power amplifier (MOPA) configuration. The stimulated Brillouin scattering (SBS) is effectively suppressed due to the short fiber length and large mode area in the main amplifier, combined with the narrow pulse duration smaller than the phonon lifetime of SBS effect. A maximal output power of 466 W is obtained with a narrow linewidth of ${\sim}$203.6 MHz, and the corresponding slope efficiency is ${\sim}$80.3%. The pulse duration is condensed to be ${\sim}$4 ns after the amplification, corresponding to the peak power of 8.8 kW and the pulse energy of $46.6~\unicode[STIX]{x03BC}\text{J}$. Near-diffraction-limited beam quality with an $M^{2}$ factor of 1.32 is obtained at the output power of 442 W and the mode instability (MI) is observed at the maximal output power. To the best of our knowledge, this is the highest average output power of the all-fiberized narrow linewidth ns pulsed fiber laser with linear polarization and high beam quality, which is a promising source for the nonlinear frequency conversion, laser lidar, and so on.

31 kW Narrow-Linewidth Linearly Polarized Nanosecond Polarization-Maintaining All-Fiber Laser

2018 ◽  
Vol 45 (4) ◽  
pp. 0401015
Author(s):  
李川 Li Chuan ◽  
韩一平 Han Yiping ◽  
赵文娟 Zhao Wenjuan
Keyword(s):  
Fiber Laser ◽  
Narrow Linewidth ◽  
Linearly Polarized ◽  
Polarization Maintaining

Frequency modulated and polarization maintaining fiber laser with narrow linewidth

2007 ◽  
Vol 274 (2) ◽  
pp. 392-395 ◽  
Author(s):  
Renjie Zhang ◽  
Benli Yu ◽  
Zhigang Cao ◽  
Shenglai Zhen ◽  
Jun Zhu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Narrow Linewidth ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining

550-mW Output Power From a Narrow Linewidth All-Phosphate Fiber Laser

2013 ◽  
Vol 31 (5) ◽  
pp. 756-760 ◽  
Author(s):  
Peter Hofmann ◽  
Christian Voigtlander ◽  
Stefan Nolte ◽  
N. Peyghambarian ◽  
Axel Schulzgen
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Narrow Linewidth

scholarly journals A 20 W, Less-Than-1-kHz Linewidth Linearly Polarized All-Fiber Laser

2018 ◽  
Vol 8 (12) ◽  
pp. 2593 ◽  
Author(s):  
Mingyuan Xue ◽  
Cunxiao Gao ◽  
Linquan Niu ◽  
Shaolan Zhu ◽  
Chuandong Sun ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Continuous Wave ◽  
Fiber Amplifiers ◽  
Average Output ◽  
Linearly Polarized ◽  
Polarization Maintaining Fiber ◽  
Polarization Maintaining ◽  
Mode Area ◽  
High Output

We report a continuous-wave high-output power and narrow-linewidth all-fiber laser at 1550 nm with the master oscillator power amplifier (MOPA) configuration. An all-fiber distributed feedback seed laser was boosted by three cascaded fiber amplifiers. In the experiment, we adopted a large-mode-area (LMA) Er3+:Yb3+-co-doped polarization-maintaining fiber to increase nonlinear thresholds and avoided the broadening of the laser linewidth. A linear-polarization fiber laser with average output power of 20 W, linewidth of 0.88 kHz, and power jitter less than 2% was finally achieved.

Narrow-linewidth high power fiber laser with output power of 334 W in all-fiber MOPA format

2011 ◽  
Vol 23 (8) ◽  
pp. 1996-1997 ◽  
Author(s):  
杜文博 Du Wenbo ◽  
肖虎 Xiao Hu ◽  
王小林 Wang Xiaolin ◽  
冷进勇 Leng Jinyong ◽  
周朴 Zhou Pu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
High Power ◽  
Narrow Linewidth

scholarly journals kW-level, narrow-linewidth linearly polarized fiber laser with excellent beam quality through compact one-stage amplification scheme

2017 ◽  
Vol 5 ◽  
Author(s):  
Man Jiang ◽  
Pengfei Ma ◽  
Long Huang ◽  
Jiangming Xu ◽  
Pu Zhou ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Beam Quality ◽  
Scale Up ◽  
Single Mode ◽  
Narrow Linewidth ◽  
Seed Laser ◽  
One Stage ◽  
Linearly Polarized

In this manuscript, we demonstrate high-power, narrow-linewidth linearly polarized fiber laser with excellent beam quality through compact one-stage amplification scheme. By employing a single-mode–multimode–single-mode structure seed laser, a linearly polarized Yb-doped fiber laser with narrow linewidth and high output power is achieved. This laser, when used as a master oscillator, can be capable of suppressing the ASE in the process of power amplification. Thus, only one-stage amplification structure is used to scale up the laser power, and linearly polarized output with a polarization extinction ration of 14 dB, a narrow linewidth of 0.3 nm and an output power of 1018 W are achieved. Moreover, due to the good beam quality of seed laser and the well-designed amplifier stage, the beam quality of the output laser is near-diffraction-limited with $M_{x}^{2}\sim 1.18$ and $M_{y}^{2}\sim 1.24$ at the maximum power, and without mode instability occurring.

Monolithic narrow linewidth polarization-maintaining thulium fiber laser using femtosecond laser written fiber Bragg gratings

2011 ◽  
Author(s):  
Christina C. C. Willis ◽  
Joshua D. Bradford ◽  
R. Andrew Sims ◽  
Lawrence Shah ◽  
Martin Richardson ◽  
...  
Keyword(s):  
Femtosecond Laser ◽  
Fiber Laser ◽  
Fiber Bragg Gratings ◽  
Bragg Gratings ◽  
Narrow Linewidth ◽  
Polarization Maintaining ◽  
Thulium Fiber Laser
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