(PDF) Random Distributed Feedback Fiber Laser - ResearchGate .. - random distributed feedback fiber laser ,Fig.. 1.. Principle of operation of random distributed feedback fiber laser.. The numerically calculat ed laser power distribution (solid line) and.. Raman gain (dashed line) are shown on the to p ..Spectral correlations in a random distributed feedback fibre .. Random distributed feedback fibre lasers belong to the class of random lasers, where the feedback is provided by amplified Rayleigh scattering on sub-micron refractive index inhomogenities randomly distributed over the fibre length.. Despite the elastic nature of Rayleigh scattering, the feedback mechanism has been insofar deemed incoherent ..
Random distributed feedback fiber Raman lasers, where the feedback mechanism is provided by Rayleigh backscattering, have attracted a good deal of attention since they were first introduced in 2010..
Random Distributed Feedback Fiber Laser.. Sergei K.. Turitsyn, Sergey A.. Babin, Atalla E.. El-Taher, Paul Harper, Dmitriy V.. Churkin, Sergey I.. Kablukov, Juan Diego Ania-Castañón, Vassilis Karalekas and Evgenii V.. Podivilov.. Become a member or log in to view the full text of this article..
Random distributed feedback fiber Raman lasers, where the feedback mechanism is provided by Rayleigh backscattering, have attracted a good deal of attention since they were first introduced in 2010..
DOI: 10..1016/J..PHYSREP..2014..02..011 Corpus ID: 120770063 Random distributed feedback fibre lasers @article{Turitsyn2014RandomDF, title={Random distributed feedback fibre lasers}, author={Sergei K.. Turitsyn and Sergey A.. Babin and Dmitry V.. Churkin and ..
In summary, we implemented an ultra-low-threshold random distributed feedback fiber laser (RDFB-FL) by utilizing a piece of highly nonlinear fiber (HNLF).. Results show that the RDFB-FL with a half-open cavity structure had a threshold of 2..517 W, 2..158 W, 1..224 W, 0..944 W, and 0..408 W respectively when the length of the HNLF was 250 m, 350 m, 600 m, 700 m and 850 m..
We design a 1053 nm Yb 3+ -doped random fiber laser (YRFL) based on the combination of Yb 3+ -doped fiber (YDF) and single mode fiber (SMF), in which the YDF pr Impact Statement: This work comprehensively studies the random distributed feedback fiber laser based on Ytterbium-doped fiber and single mode fiber.. ..
Fiber random lasers generally employ the Rayleigh scattered light from an optical fiber as feedback mechanism.. In some cases, the gain medium is distributed over the feedback fiber [1, 2] or ..
7..2..1 Gain and Feedback Mechanisms in Random Fiber Lasers.. The basic scheme of the random distributed feedback (DFB) fiber laser is very simple comprising only a pump laser and a piece of a passive fiber playing the role of both gain medium and a cavity.. Here and further in this section, we focus on the properties of the random DFB fiber laser ..
Random Distributed Feedback Fiber Laser Sergei K.. Turitsyn, Sergey A.. Babin, Atalla E.. El-Taher, Paul Harper, Dmitriy V.. Churkin, Sergey I.. Kablukov, Juan Diego Ania-Castañón, Vassilis Karalekas, and Evgenii V.. Podivilov Find other works by these authors ..
We demonstrate a random distributed feedback fiber laser at 2..1 μm.. A high-power pulsed Tm-doped fiber laser operating at 1..94 μm with a temporal duty ratio of 30% was employed as a pump laser to increase the equivalent incident pump power.. A piece of 150 m highly GeO2-doped silica fiber that provides a strong Raman gain and random distributed feedbacks was used to act as the gain medium ..
Random distributed feedback fibre lasers belong to the class of random lasers, where the feedback is provided by amplified Rayleigh scattering on sub-micron refractive index inhomogenities randomly distributed over the fibre length.. Despite the elastic nature of Rayleigh scattering, the feedback mechanism has been insofar deemed incoherent ..
We presented a random distributed feedback (RDFB) fiber laser with widely tunable range that covers both C- and L-band.. It is formed by a half-open cavity with forward pumping scheme.. The hybrid gain from erbium-doped fiber (EDF) and single-mode fiber (SMF) enables the fiber laser to oscillate with not only a broadband tunability, but also a low laser threshold.. The proposed fiber laser can be ..
Random distributed feedback fiber laser (RDF-FL) based on combination of Er-doped fiber (EDF) and single-mode fiber (SMF) is proposed in this paper.. Through pumping of both the EDF (i..e.., 1480 nm pump) and the SMF (i..e.., 1455 nm pump), random lasing is obtained.. With increase of pump powers, different transitions between chaotic and stable status of the output spectrum are observed.. Especially ..
7..2..1 Gain and Feedback Mechanisms in Random Fiber Lasers.. The basic scheme of the random distributed feedback (DFB) fiber laser is very simple comprising only a pump laser and a piece of a passive fiber playing the role of both gain medium and a cavity.. Here and further in this section, we focus on the properties of the random DFB fiber laser ..
We demonstrate a random fiber laser of ultimate efficiency.. More than 2 Watts are generated from 0..5W of pump excess over the generation threshold.. At higher power, an optical efficiency corresponds to the quantum limit..
The concept of random lasers exploiting multiple scattering of photons in an amplifying disordered medium in order to generate coherent light without a traditional laser resonator has attracted a great deal of attention in recent years.. This research area lies at the interface of the fundamental theory of disordered systems and laser science.. The idea was originally proposed in the context of ..
Random distributed feedback fiber laser Abstract: I will overview our recent results on ultra-long lasers and will discuss the concept of a fiber laser with an open cavity that operates using random distributed feedback provided by Rayleigh scattering amplified through the Raman effect..
We demonstrate a random distributed feedback fiber laser at 2..1 μm.. A high-power pulsed Tm-doped fiber laser operating at 1..94 μm with a temporal duty ratio of 30% was employed as a pump laser to increase the equivalent incident pump power.. A piece of 150 m ..
Random distributed feedback fiber laser Abstract: I will overview our recent results on ultra-long lasers and will discuss the concept of a fiber laser with an open cavity that operates using random distributed feedback provided by Rayleigh scattering amplified through the Raman effect..
