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A configuration of the water-jet guided pump for the fiber laser

✍ Scribed by M. Gong; L. Huang; Y. Huang; H. Zhang; X. Yan; P. Yan

Publisher
John Wiley and Sons
Year
2008
Tongue
English
Weight
76 KB
Volume
5
Category
Article
ISSN
1612-2011

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✦ Synopsis

The water-jet guided pump (WJGP) is newly proposed to solve the serious thermal effects in high power endpumped fiber lasers. In this pumping scheme, the pumping light is coupled into the water-jet similar to an optical fiber. The light is guided by the jet and pumped into a following fiber. The experiment of WJGP double-clad fiber is carried out and the maximum coupling efficiency is 71.4%. LD Collimating lens Beam expander Focusing lens Fiber delivery Quartz window Water pump X Y Z Fiber Laser out Power meter Water Nozzle Jet Light beam w ΞΈ

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✍ Yu. L. Kalachev; V.A. Mihailov; V.V. Podreshetnikov; I.A. Shcherbakov πŸ“‚ Article πŸ“… 2011 πŸ› Elsevier Science 🌐 English βš– 499 KB

A Tm:YLF laser pumped by a Raman shifted Er-fiber laser at 1.678 ΞΌm was studied at two Tm 3+ ion concentrations equal to 1.5% and 5%. At output powers up to 460 mW the measured lasing efficiency at a wavelength of ~1.93 ΞΌm was as high as ~50%. The lasing performance was compared with that obtained u