scholarly journals High-Power Large-Energy Raman Soliton Generations Within a Mode-Locked Yb-Doped Fiber Laser Based on High-Damage-Threshold CVD-MoS2 as Modulator

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1305
Author(s):  
Pengfei Ma ◽  
Wei Lin ◽  
Huanian Zhang ◽  
Shanhui Xu ◽  
Zhongmin Yang
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Damage Threshold ◽  
Single Pulse ◽  
Large Energy ◽  
Two Dimensional ◽  
Average Output ◽  
Two Dimensional Materials ◽  
Maximum Average Output Power ◽  
First Time

In our work, based on a high-damage-threshold MoS2 saturable absorber (SA), high-power intra-cavity Raman solitons within a passively mode-locked Yb-doped fiber laser were demonstrated successfully for the first time. The damage threshold of the MoS2 SA was as high as ~0.48 J/cm2. By adjusting the polarization states, stable single- or dual-pulse Raman soliton operations were obtained. The maximum average output power for single-pulse and dual-pulse Raman soliton operations was 80.11 and 89.33 mW, respectively. Our experiment results show significant enhancement in comparison with previous works, which provides fundamental guidance for future designs of high-power, large-energy, intra-cavity Raman soliton generations based on two-dimensional materials as SAs.

scholarly journals Passively Q-switched Yb-doped all-fiber laser based on Ag nanoplates as saturable absorber

Nanophotonics ◽  
2020 ◽  
Vol 9 (12) ◽  
pp. 3873-3880
Author(s):  
Bo Fu ◽  
Pan Wang ◽  
Yan Li ◽  
Marcello Condorelli ◽  
Enza Fazio ◽  
...  
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Saturable Absorber ◽  
Modulation Depth ◽  
Single Pulse ◽  
Average Output ◽  
Saturable Absorbers ◽  
Maximum Average Output Power ◽  
Easy Integration ◽  
First Time

AbstractWe report on a Q-switched Yb-doped all-fiber laser based on a solution-processed Ag nanoplates saturable absorber. Optical deposition procedure is implemented to transfer the Ag nanoplates onto the fiber core area through the thermal effect. The saturable absorber is sandwiched between two fiber connectors, providing simplicity, flexibility, and easy integration into the laser oscillator. The modulation depth and saturation incident fluence are measured to be ~5.8% and ~106.36 μJ/cm2 at 1-μm region, respectively. Self-started stable Q-switched operation is achieved for a threshold pump power of 180 mW. The repetition rates of the pulse trains range from 66.6 to 184.8 kHz when the pump power scales from 210 to 600 mW. The maximum average output power is 10.77 mW, corresponding to the single-pulse energy of 58.3 nJ and minimum pulse duration of ~1.01 μs. To the best of our knowledge, it is the first time that the Ag nanoplates saturable absorbers are utilized in the 1-μm Yb-doped Q-switched fiber laser.

scholarly journals High-Power Large-Energy Rectangular Mode-Locked Er-Doped Fiber Laser Based on High-Damage-Threshold MoS2 Saturable Absorber

2019 ◽  
Vol 11 (5) ◽  
pp. 1-12
Author(s):  
Pengfei Ma ◽  
Wei Lin ◽  
Huanian Zhang ◽  
Shanhui Xu ◽  
Zhongmin Yang
Keyword(s):  
Fiber Laser ◽  
Saturable Absorber ◽  
High Power ◽  
Damage Threshold ◽  
Large Energy ◽  
Er Doped

scholarly journals Improved Laser Damage Threshold of In2Se3 Saturable Absorber by PVD for High-Power Mode-Locked Er-Doped Fiber Laser

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1216 ◽  
Author(s):  
Han ◽  
Zhang ◽  
Jiang ◽  
Zhang ◽  
Li ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Output Power ◽  
Saturable Absorber ◽  
High Power ◽  
Average Output Power ◽  
Damage Threshold ◽  
Laser Damage Threshold ◽  
Average Output ◽  
Highly Nonlinear ◽  
Er Doped

In this study, a double-end pumped high-power passively mode-locked erbium-doped fiber laser (EDFL) was realized by employing a few-layered In2Se3 flakes as a saturable absorber (SA). Herein, the uniform large-scale In2Se3 flakes were synthesized by the physical vapor deposition (PVD) method. The PVD-In2Se3 SA exhibited a remarkable damage threshold of higher than 24 mJ/cm2. Meanwhile, the PVD-In2Se3 SA had a modulation depth and saturable intensity of 18.75% and 6.8 MW/cm2, respectively. Based on the In2Se3 SA, the stable bright pulses emitting at 1559.4 nm with an average output power/pulse energy/pulse duration of 122.4 mW/5.8 nJ/14.4 ns were obtained successfully. To our knowledge, 122.4 mW was the new major breakthrough of mode-locked Er-doped fiber lasers. In addition, this is the first demonstration of the dark-bright pulse pair generation based on In2Se3 SA. The maximum average output power of the dark-bright pulse reached 121.2 mW, which also showed significant enhancement in comparison with previous works. Our excellent experiment results fully prove the superiority of our experimental design scheme and indicate that the PVD-In2Se3 could operate as a promising highly-nonlinear photonic material for a high-power fiber laser.

scholarly journals Enhancement of microwave absorption bandwidth of MXene nanocomposites through macroscopic design

2020 ◽  
Vol 7 (8) ◽  
pp. 200456 ◽  
Author(s):  
Pritom J. Bora ◽  
T. R. Suresh Kumar ◽  
Daniel Q. Tan
Keyword(s):  
Microwave Absorption ◽  
Polymer Nanocomposites ◽  
Reflection Loss ◽  
The Other ◽  
Two Dimensional ◽  
Absorption Bandwidth ◽  
Hybrid Matrix ◽  
New Family ◽  
Two Dimensional Materials ◽  
First Time

MXene, the new family of two-dimensional materials having numerous nanoscale layers, is being considered as a novel microwave absorption material. However, MXene/functionalized MXene-loaded polymer nanocomposites exhibit narrow reflection loss (RL) bandwidth (RL less than or equal to −10 dB). In order to enhance the microwave absorption bandwidth of MXene hybrid-matrix materials, for the first time, macroscopic design approach is carried out for TiO 2 -Ti 3 C 2 T x MXene and Fe 3 O 4 @TiO 2 -Ti 3 C 2 T x MXene hybrids through simulation. The simulated results indicate that use of pyramidal meta structure of MXene can significantly tune the RL bandwidth. For optimized MXene hybrid-matrix materials pyramid pattern, the bandwidth enhances to 3–18 GHz. Experimental RL value well matched with the simulated RL. On the other hand, the optimized Fe 3 O 4 @TiO 2 -Ti 3 C 2 T x hybrid exhibits two specific absorption bandwidths (minimum RL value - −47 dB). Compared with other two-dimensional nanocomposites such as graphene or Fe 3 O 4 -graphene, MXene hybrid-matrix materials show better microwave absorption bandwidth in macroscopic pattern.

High-Power and Large-Energy Dissipative Soliton Resonance in a Compact Tm-Doped All-Fiber Laser

2019 ◽  
Vol 31 (5) ◽  
pp. 381-384 ◽  
Author(s):  
Zhiyuan Dou ◽  
Bin Zhang ◽  
Xuan He ◽  
Zehua Xu ◽  
Jing Hou
Keyword(s):  
Fiber Laser ◽  
High Power ◽  
Dissipative Soliton ◽  
Large Energy ◽  
Soliton Resonance

All-fiber all-normal-dispersion passively mode-locked neodymium-doped fiber laser operation at 1064 nm

Laser Physics ◽  
2022 ◽  
Vol 32 (2) ◽  
pp. 025102
Author(s):  
Liwei Xu ◽  
Xiaohan Chen ◽  
Ming Li ◽  
Bin Zhang ◽  
Qiongyu Hu ◽  
...  
Keyword(s):  
Pump Power ◽  
Fiber Laser ◽  
Average Output Power ◽  
Laser Operation ◽  
Polarization Rotation ◽  
Nonlinear Polarization ◽  
Average Output ◽  
Normal Dispersion ◽  
Maximum Average Output Power ◽  
Nonlinear Polarization Rotation

Abstract In this work, we report an all-fiber Nd-doped passively mode-locked fiber laser based on nonlinear polarization rotation mechanism operating in the 1.06 μm region. When the pump power was 300 mW, a pulse with a maximum average output power of 0.63 mW, a narrowest pulse duration of 1.22 ps and a pulse repetition rate of 14.25 MHz was obtained.

Experimental observation of a cyclic dynamics of solitons in a fiber laser

2019 ◽  
Vol 28 (02) ◽  
pp. 1950014
Author(s):  
D. Mallek-Bouras ◽  
D. Boukhaoui ◽  
D. Amroun-Aliane ◽  
R. Becheker ◽  
A. Kellou
Keyword(s):  
Fiber Laser ◽  
Experimental Observation ◽  
Single Pulse ◽  
Pumping Power ◽  
Cyclic Transition ◽  
Soliton Dynamics ◽  
Erbium Doped ◽  
Cyclic Dynamics ◽  
First Time ◽  
Singular Soliton

We report an experimental observation of a singular soliton dynamics in a mode-locked erbium doped fiber laser. This is the first time, to our knowledge, that output intensity exhibits a cyclic transition from a single-pulse to a multi-pulse regime for a fixed value of both pumping power and polarization controllers orientation. Moreover, the pulse duration of the single- and multi-pulse regimes is the same, in contrast with what is usually observed.

Unveiling two-dimensional TiS2 as an insertion host for the construction of high energy Li-ion capacitors

2017 ◽  
Vol 5 (19) ◽  
pp. 9177-9181 ◽  
Author(s):  
Apoorva Chaturvedi ◽  
Peng Hu ◽  
Vanchiappan Aravindan ◽  
Christian Kloc ◽  
Srinivasan Madhavi
Keyword(s):  
Activated Carbon ◽  
High Power ◽  
High Energy ◽  
Two Dimensional ◽  
Li Ion ◽  
First Time

Herein, we report, for the first time, the possibility of using TiS2 as an insertion host for the fabrication of high energy and high power Li-ion capacitors with commercial activated carbon.

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