True crystalline fibers: double-clad LMA design concept of Tm:YAG-core fiber and its mode simulation

Xiaodong Mu; Helmuth Meissner; Huai-Chuan Lee; Mark Dubinskii

doi:10.1117/12.910527

15 February 2012 True crystalline fibers: double-clad LMA design concept of Tm:YAG-core fiber and its mode simulation

Xiaodong Mu, Helmuth Meissner, Huai-Chuan Lee, Mark Dubinskii

Proceedings Volume 8237, Fiber Lasers IX: Technology, Systems, and Applications; 82373M (2012) https://doi.org/10.1117/12.910527
Event: SPIE LASE, 2012, San Francisco, California, United States

Abstract

We propose a sub-100 μm double-clad single-crystalline Tm:YAG square core adhesive-free bond (AFB) waveguide structure as a prototype gain medium for an LMA ~2-μm fiber laser with ~790-nm diode laser pumping and present its mode simulation. The structure uses an undoped YAG and ceramic spinel for the inner and outer claddings, respectively. The mode simulation indicates that such double-clad structure can have over 1000-μm² mode area in a 2% Tm:YAG core which will maintain a single transverse mode laser operation. The structure also has a large numerical aperture (~ 0.22) for the un-doped YAG inner cladding available for pumping.

Citation Download Citation

Xiaodong Mu, Helmuth Meissner, Huai-Chuan Lee, and Mark Dubinskii "True crystalline fibers: double-clad LMA design concept of Tm:YAG-core fiber and its mode simulation", Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82373M (15 February 2012); https://doi.org/10.1117/12.910527

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