Sen, Ranjan and Saha, M and Pal, A and Pal, Mrinmay and Leich, M and Kobelke, J (2014) High power laser fiber fabricated through vapor phase doping of Ytterbium. Laser Physics Letters, 11 (8). Article No.-085105. ISSN 1612-202X

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We present the characteristics of an ytterbium-doped alumino-silicate fiber, fabricated through vapor phase doping of aluminum and ytterbium in the core, along with silica and in conjunction with the modified chemical vapor deposition process. The vapor phase doping of rare-earths provides the opportunity to fabricate large core active fibers with a uniform distribution of dopants. The fibers fabricated exhibited low OH- content, negligible center dip and good optical properties. Lasing performance was tested up to output power of 105 W, with a slope efficiency of 77% with respect to launched pump power. The linear variation of the laser power with a pump shows its potentiality for further power scaling.

Item Type: Article
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 20 Nov 2014 12:18
Last Modified: 25 Nov 2014 09:34

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