Broadband generation by multiple four-wave mixing process due to ASE Q-switching in high-power double-clad ytterbium-doped fiber amplifier

2014 ◽  
Author(s):  
Sourav D. Chowdhury ◽  
Nishant Shekhar ◽  
Maitreyee Saha ◽  
Ranjan Sen ◽  
Mrinmay Pal
Keyword(s):  
High Power ◽  
Fiber Amplifier ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Process ◽  
Q Switching ◽  
Broadband Generation

scholarly journals Monochromatic Conical IR Emission from Decaying KrF Laser Filaments in Xenon as Coherent Stimulated Four-Wave Mixing Process

Photonics ◽  
2021 ◽  
Vol 8 (2) ◽  
pp. 47
Author(s):  
Igor V. Smetanin ◽  
Alexey V. Shutov ◽  
Nikolay N. Ustinovskii ◽  
Vladimir D. Zvorykin ◽  
Anna V. Bogatskaya ◽  
...  
Keyword(s):  
Transverse Relaxation Time ◽  
Four Wave Mixing ◽  
Theoretical Background ◽  
Wave Mixing ◽  
Mixing Process ◽  
Optical Phenomenon ◽  
Coherent Interaction ◽  
Conical Emission ◽  
Krf Laser ◽  
Ir Emission

We develop theoretical background for the new nonlinear optical phenomenon of narrowly directed monochromatic IR conical emission which has been recently observed when 248-nm UV filaments propagate in xenon (V. D. Zvorykin, et al., Laser Phys. Lett. 13, 125404 (2016)). We treat it as coherent stimulated four-wave mixing process in which two pump KrF laser photons are converted into the coupled pair of resonance IR(828 nm) and VUV (147 nm) photons through 5p5(2P3/2)6p[1/2]0→5p5(2P3/2)6s[3/2]1o and 5p5(2P3/2)6s[3/2]1o→1S0 transitions. We explore the coherent interaction regime which proceeds at a time scale shorter than transverse relaxation time T2. The momentum and energy conservation laws determine the characteristic angle of conical emission. We find that the threshold of this coherent process is determined by the KrF laser pump pulse area.

scholarly journals High-power widely tunable ps source in the visible light based on four wave mixing in optimized photonic crystal fibers

2018 ◽  
Vol 26 (9) ◽  
pp. 11265 ◽  
Author(s):  
Jean-Christophe Delagnes ◽  
Romain Royon ◽  
Jérôme Lhermite ◽  
Giorgio Santarelli ◽  
Hector Muñoz ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Visible Light ◽  
High Power ◽  
Photonic Crystal Fibers ◽  
Four Wave Mixing ◽  
Wave Mixing ◽  
Crystal Fibers

scholarly journals Four-wave-mixing process in secondary cores of a microstructured fiber

2008 ◽  
Vol 57 (9) ◽  
pp. 5973
Author(s):  
Ji Ling-Ling ◽  
Lu Pei-Xiang ◽  
Chen Wei ◽  
Dai Neng-Li ◽  
Zhang Ji-Huang ◽  
...  
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Process ◽  
Microstructured Fiber

Total Stokes or Anti-Stokes Conversion from Four-Wave Mixing Process (FWMP) in Para-H 2

1986 ◽  
Vol 2 (9) ◽  
pp. 695-699 ◽  
Author(s):  
M Bernardini ◽  
M Giorgi ◽  
A Palucci ◽  
S Ribezzo ◽  
S Marchetti
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Process ◽  
Anti Stokes

Four-wave mixing effect on high-power continuous-wave all-fiber lasers

2018 ◽  
Vol 32 (23) ◽  
pp. 1850275
Author(s):  
Jinkun Zheng ◽  
Wei Zhao ◽  
Baoyin Zhao ◽  
Zhe Li ◽  
Gang Li ◽  
...  
Keyword(s):  
High Power ◽  
Fiber Lasers ◽  
Continuous Wave ◽  
Beam Quality ◽  
Matching Condition ◽  
Four Wave Mixing ◽  
Theoretical Description ◽  
Phase Matching ◽  
Wave Mixing ◽  
Mixing Effect

A four-wave mixing effect on high-power continuous-wave fiber lasers has been demonstrated theoretically and experimentally. Detailed theoretical description of phase matching is presented and we found that the phase matching condition is satisfied at the frequency shift of 5.16 THz. While the intensity in fiber core region is more than about 394 MW/cm2, the four-wave mixing products of 1100 nm and 1060 nm were also observed in high-power all-fiber laser. The comparison shows that the experiment result is in good agreement with the simulation result. In addition, the beam quality deterioration for the laser is caused by the four-wave mixing effect and the mode instability. The [Formula: see text] factor measured at maximal intensity of 478 MW/cm2 is 2.80.

Study of Airy Beams Generated via Four-Wave Mixing Process in a Homogeneous Atomic Medium

2015 ◽  
Vol 52 (8) ◽  
pp. 081406
Author(s):  
李莉 Li Li ◽  
李姝丽 Li Shuli ◽  
张云哲 Zhang Yunzhe ◽  
李院院 Li Yuanyuan ◽  
徐可为 Xu Kewei
Keyword(s):  
Four Wave Mixing ◽  
Wave Mixing ◽  
Mixing Process ◽  
Atomic Medium ◽  
Airy Beams
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