Design of large mode area, mode selection fiber

Liang Jin; Li Xu; He Zhang; Yonggang Zou; Ye Ding; Xiaohui Ma

doi:10.1117/12.2071085

9 December 2014 Design of large mode area, mode selection fiber

Liang Jin, Li Xu, He Zhang, Yonggang Zou, Ye Ding, Xiaohui Ma

Proceedings Volume 9294, International Symposium on Optoelectronic Technology and Application 2014: Development and Application of High Power Lasers; 929405 (2014) https://doi.org/10.1117/12.2071085
Event: International Symposium on Optoelectronic Technology and Application 2014, 2014, Beijing, China

Abstract

The paper study on the effect of index distribution on the mode field and calculated the mode distribution in various index profiles. A single mode gaussian hybrid multicore fiber with 19 hexagonally arranged high index quartz rods is designed and investigated. Theoretical and simulative results are presented and compared to the conventional large mode area double clad fiber, the fundamental mode (FM) area can be reached 694.28 μm², the confinement loss of FM and high order modes (HOMs) are 0.186 dB/m and 1.48 dB/m respectively with the bending radius of 20 cm at 1.064 μm wavelength, moreover, the index distribution can resistant the mode field distortion, which caused by fiber bending. So the FM delivery can be formed and the beam quality can be improved.

Citation Download Citation

Liang Jin, Li Xu, He Zhang, Yonggang Zou, Ye Ding, and Xiaohui Ma "Design of large mode area, mode selection fiber", Proc. SPIE 9294, International Symposium on Optoelectronic Technology and Application 2014: Development and Application of High Power Lasers, 929405 (9 December 2014); https://doi.org/10.1117/12.2071085

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