Higher-order Femtosecond Solitons Generation in a Hybrid Mode-locked Tm-doped Fibre Laser

2014 ◽  
Author(s):  
Maria A. Chernysheva ◽  
Alexander A. Krylov ◽  
Chengbo Mou ◽  
Raz N. Arif ◽  
Alex Rozhin ◽  
...  
Keyword(s):  
Higher Order ◽  
Fibre Laser ◽  
Hybrid Mode

Higher-Order Soliton Generation in Hybrid Mode-Locked Thulium-Doped Fiber Ring Laser

2014 ◽  
Vol 20 (5) ◽  
pp. 425-432 ◽  
Author(s):  
Maria A. Chernysheva ◽  
Alexander A. Krylov ◽  
Chengbo Mou ◽  
Raz N. Arif ◽  
Alex G. Rozhin ◽  
...  
Keyword(s):  
Ring Laser ◽  
Higher Order ◽  
Hybrid Mode ◽  
Fiber Ring Laser ◽  
Fiber Ring ◽  
Soliton Generation

Uni- and bidirectional hybrid mode-locked erbium-doped isolator-free fibre laser

2016 ◽  
Author(s):  
Maria Chernysheva ◽  
Mohammed Al Araimi ◽  
Sergei Sukhanov ◽  
Raz Arif ◽  
Aleksey Rozhin
Keyword(s):  
Fibre Laser ◽  
Hybrid Mode ◽  
Erbium Doped

scholarly journals Double-Wall Carbon Nanotube Hybrid Mode-Locker in Tm-doped Fibre Laser: A Novel Mechanism for Robust Bound-State Solitons Generation

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Maria Chernysheva ◽  
Anastasia Bednyakova ◽  
Mohammed Al Araimi ◽  
Richard C. T. Howe ◽  
Guohua Hu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Bound State ◽  
Fibre Laser ◽  
Hybrid Mode ◽  
Double Wall

scholarly journals Numerical model of hybrid mode-locked Tm-doped all-fibre laser

2020 ◽  
Vol 10 (1) ◽  
Author(s):  
Aleksandr Donodin ◽  
Vasilii Voropaev ◽  
Daniil Batov ◽  
Dmitrii Vlasov ◽  
Vladimir Lazarev ◽  
...  
Keyword(s):  
Numerical Model ◽  
Average Power ◽  
Spectral Width ◽  
Mode Locking ◽  
Experimental Results ◽  
Fibre Laser ◽  
Model Parameters ◽  
Hybrid Mode ◽  
Fibre Lasers ◽  
Laser Systems

Abstract Ultrafast Tm-doped fibre lasers have been actively studied for the last decade due to their potential applications in precise mid-IR spectroscopy, LIDARs, material processing and more. The majority of research papers is devoted to the comparison between a numerical modelling and experimental results; however, little attention is being paid to the comprehensive description of the mathematical models and parameters of the active and passive components forming cavities of Tm-doped all-fibre lasers. Thus, here we report a numerical model of a stretched-pulsed Tm-doped fibre laser with hybrid mode-locking and compare it with experimental results. The key feature of the developed numerical model is employment of the experimentally measured dispersion coefficients and optimisation of some model parameters, such as the bandwidth of the spectral filter spectral filtering and the saturation power of the active fibre, for a conformity with the experiment. The developed laser emits 331.7 fs pulses with a 23.8 MHz repetition rate, 6 mW of average power, 0.25 nJ of pulse energy, and a 21.66 nm spectral bandwidth at a peak wavelength of 1899.5 nm. The numerical model characteristics coincide with experimentally achieved spectral width, pulse duration, and average power with inaccuracy of 4.7%, 5.4%, and 22.9%, respectively. Moreover, in the discussion of the work the main possible reasons influencing this inaccuracy are highlighted. Elimination of those factors might allow to increase accuracy even more. We show that numerical model has a good agreement with the experiment and can be used for development of ultrafast Tm-doped fibre laser systems.

Pulse repetition rate multiplication in fibre laser using higher-order passive modelocking

2008 ◽  
Vol 44 (21) ◽  
pp. 1240 ◽  
Author(s):  
T. Sylvestre ◽  
J. Schroeder ◽  
S. Coen ◽  
Ph. Emplit ◽  
M. Haelterman
Keyword(s):  
Repetition Rate ◽  
Pulse Repetition Rate ◽  
Higher Order ◽  
Pulse Repetition ◽  
Fibre Laser

Dual systems for all: Higher-order, role-based relational reasoning as a uniquely derived feature of human cognition

2019 ◽  
Vol 42 ◽  
Author(s):  
Daniel J. Povinelli ◽  
Gabrielle C. Glorioso ◽  
Shannon L. Kuznar ◽  
Mateja Pavlic
Keyword(s):  
Temporal Reasoning ◽  
Higher Order ◽  
Important Case ◽  
Human Cognition ◽  
Relational Reasoning ◽  
Dual Systems ◽  
First Order ◽  
Reasoning System ◽  
Role Based

Abstract Hoerl and McCormack demonstrate that although animals possess a sophisticated temporal updating system, there is no evidence that they also possess a temporal reasoning system. This important case study is directly related to the broader claim that although animals are manifestly capable of first-order (perceptually-based) relational reasoning, they lack the capacity for higher-order, role-based relational reasoning. We argue this distinction applies to all domains of cognition.

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