Highly efficient cladding-pumped double-clad fiber laser based on a concentrically co-grown Yb:YAG/YAG crystal structure (Conference Presentation)

Jun Zhang; Youming Chen; Shizhuo Yin; Claire Luo; Mark Dubinskii

doi:10.1117/12.2277079

19 September 2017 Highly efficient cladding-pumped double-clad fiber laser based on a concentrically co-grown Yb:YAG/YAG crystal structure (Conference Presentation)

Jun Zhang, Youming Chen, Shizhuo Yin, Claire Luo, Mark Dubinskii

Author Affiliations +

Proceedings Volume 10382, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI; 103820O (2017) https://doi.org/10.1117/12.2277079
Event: SPIE Optical Engineering + Applications, 2017, San Diego, California, United States

Abstract

We investigated double-clad (DC) optical fibers for high power laser applications, with concentrically co-grown ‘Yb:YAG/YAG’ crystal structure, for which ‘crystalline core/crystalline clad’ = CCCC = C4 fiber term was coined. The fibers were fabricated using a liquid phase epitaxial growth (LPE) of undoped single-crystalline YAG cladding around the 100 µm single-crystalline Yb:YAG core separately grown by a laser heated pedestal growth (LHPG) technique. Laser testing of the low-loss C4 fibers with direct diode-clad-pumping at 969 nm has demonstrated over 40 W of core-guided (NA ≈ 0.025) multimode laser output at 1030 nm with over 60% slope efficiency.

Conference Presentation

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Jun Zhang, Youming Chen, Shizhuo Yin, Claire Luo, and Mark Dubinskii "Highly efficient cladding-pumped double-clad fiber laser based on a concentrically co-grown Yb:YAG/YAG crystal structure (Conference Presentation)", Proc. SPIE 10382, Photonic Fiber and Crystal Devices: Advances in Materials and Innovations in Device Applications XI, 103820O (19 September 2017); https://doi.org/10.1117/12.2277079

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KEYWORDS

Crystals

Liquid phase epitaxy

Fiber lasers

Laser crystals

Liquids

Photonic crystal fibers

Fabrication

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