scholarly journals Highly stable MXene (V2CTx)-based harmonic pulse generation

Nanophotonics ◽  
2020 ◽  
Vol 9 (8) ◽  
pp. 2577-2585 ◽  
Author(s):  
Weichun Huang ◽  
Chunyang Ma ◽  
Chao Li ◽  
Ye Zhang ◽  
Lanping Hu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
High Performance ◽  
Modulation Depth ◽  
High Harmonic ◽  
Pulse Generation ◽  
Harmonic Order ◽  
Ambient Conditions ◽  
Harmonic Mode ◽  
Practical Applications ◽  
Er Doped

AbstractMXene as a novel two-dimensional (2D) material exhibits a lot of advantages in nonlinear optics. However, the common MXene, Ti3C2Tx and Ti2CTx nanosheets, easily suffer from degradation under ambient conditions, greatly limiting their practical applications. Here, we demonstrated one of MXene compounds, V2CTx, which has a strong modulation depth (nearly 50%), can serve as an excellent saturable absorber (SA) in passively mode-locked (PML) fiber lasers. More importantly, 206th harmonic order has been successfully generated in Er-doped mode-locked fiber laser, exhibiting maximum repetition rate of 1.01 GHz and pulse duration of 940 fs, which to the best of our knowledge, is the highest harmonic mode-locked fiber laser from the MXene SA so far. In addition, the high harmonic order mode-locked operation can maintain at least 24 h without any noticeable change, suggesting MXene V2CTx nanosheets have excellent stability in this mode-locked fiber laser. It is anticipated that the present work can pave the way to new design for MXene-based heterostructures for high-performance harmonic mode-locked lasers.

Passively mode-locked in Er-doped fiber laser based on semi-metallic InBi saturable absorber

2021 ◽  
Author(s):  
Jianwei Hu ◽  
Rong Huang ◽  
Ziqiao Wei ◽  
Minru Wen ◽  
Fugen Wu ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Modulation Depth ◽  
Mode Locking ◽  
Nodal Line ◽  
Saturable Absorption ◽  
Optical Nonlinearities ◽  
Passive Mode ◽  
Central Wavelength ◽  
Two Dimensional Materials ◽  
Er Doped

Abstract Two-dimensional materials have drawn great interest for their applications in mode-locking owning to their unique optical nonlinearities. However, most of these 2D materials are semi-conductor. In this study, a new kind of semimetal Indium bismuth (InBi) is reported which is a topological nodal-line semimetal with exotic physical properties. The InBi nanomaterials was prepared through liquid phase exfoliation method with average thickness of 32.8 nm. The saturable absorption property was measured and passive mode-locking operation was achieved successfully in Er-doped fiber laser. It exhibits a modulation depth of 3.21%, a saturable intensity of 100 MW/cm2, and a pulse width about 859.97 fs corresponding to the central wavelength of 1562.27 nm and 3-dB bandwidth of 2.98 nm. The experimental results open a new avenue for the use of semimetals InBi nanomaterials in lasers and photonics applications.

Nonlinearity management in a passively harmonic mode locked Er-doped fiber laser based on carbon nanotubes film

2021 ◽  
Author(s):  
Qianqian Huang ◽  
dai lilong ◽  
Alex Rozhin ◽  
Chengbo Mou ◽  
Mohammed Al Arami
Keyword(s):  
Carbon Nanotubes ◽  
Fiber Laser ◽  
Harmonic Mode ◽  
Nonlinearity Management ◽  
Er Doped

scholarly journals L-Band GHz Femtosecond Passively Harmonic Mode-Locked Er-Doped Fiber Laser Based on Nonlinear Polarization Rotation

2019 ◽  
Vol 11 (4) ◽  
pp. 1-7 ◽  
Author(s):  
Yuanda Ling ◽  
Qianqian Huang ◽  
Chuanhang Zou ◽  
Zhikun Xing ◽  
Zhijun Yan ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Polarization Rotation ◽  
Harmonic Mode ◽  
Nonlinear Polarization ◽  
Nonlinear Polarization Rotation ◽  
L Band ◽  
Er Doped

scholarly journals Ternary chalcogenide Ta2NiS5 nanosheets for broadband pulse generation in ultrafast fiber lasers

Nanophotonics ◽  
2019 ◽  
Vol 9 (8) ◽  
pp. 2341-2349
Author(s):  
Mengyuan Ma ◽  
Jiantian Zhang ◽  
Yao Zhang ◽  
Xiaoli Wang ◽  
Junli Wang ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Laser Pulses ◽  
Mode Locking ◽  
Pulse Generation ◽  
Ultrafast Laser ◽  
Transition Metal Dichalcogenide ◽  
Ultrafast Laser Pulses ◽  
Ternary Chalcogenide ◽  
Cavity Structure ◽  
Er Doped

AbstractIn this article, a high-quality saturable absorber (SA) based on a two-dimensional ternary chalcogenide Ta2NiS5 nanosheet has been successfully fabricated and used in 1- and 1.5-μm spectral regions to generate ultrafast laser pulses. The Ta2NiS5-based SA is fabricated by mechanical exfoliation and sandwiched between two fiber ferrules to form a fiber-compatible SA. On the basis of the twin-detector technique, nonlinear optical absorption of the Ta2NiS5-SA is characterized by 64.7% and 11.95% modulation depths with 1.3 and 0.72 MW/cm2 saturation intensities at 1028 and 1570 nm, respectively. When Ta2NiS5-SA is integrated into Yb- and Er-doped fiber laser cavities, stable self-starting Q-switched pulses are observed. Furthermore, by adjusting the cavity structure and optimizing dispersion in the cavity, we obtain hybrid mode-locking and mode-locking fiber laser operation at 1029 and 1569 nm, respectively. These results validate the performance of Ta2NiS5 as a broadband SA for the generation of ultrafast laser pulses, offering new opportunities of ternary transition-metal dichalcogenide alloys in future photonic devices.

scholarly journals 250-GHz Passive Harmonic Mode-Locked Er-Doped Fiber Laser by Dissipative Four-Wave Mixing With Silicon-Based Micro-Ring

2013 ◽  
Vol 5 (5) ◽  
pp. 1502107-1502107 ◽  
Author(s):  
Siao-Shan Jyu ◽  
Ling.-Gang Yang ◽  
Chi-Yan Wong ◽  
Chien-Hung Yeh ◽  
Chi-Wai Chow ◽  
...  
Keyword(s):  
Fiber Laser ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Harmonic Mode ◽  
Er Doped ◽  
Silicon Based
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