All fiber cladding mode stripper with uniform heat distribution and high cladding light loss manufactured by CO2 laser ablation

M. A. Jebali; E. T. Basso

doi:10.1117/12.2291955

20 February 2018 All fiber cladding mode stripper with uniform heat distribution and high cladding light loss manufactured by CO₂ laser ablation

M. A. Jebali, E. T. Basso

Author Affiliations +

Proceedings Volume 10513, Components and Packaging for Laser Systems IV; 105131Q (2018) https://doi.org/10.1117/12.2291955
Event: SPIE LASE, 2018, San Francisco, California, United States

Abstract

Cladding mode strippers are primarily used at the end of a fiber laser cavity to remove high-power excess cladding light without inducing core loss and beam quality degradation. Conventional manufacturing methods of cladding mode strippers include acid etching, abrasive blasting or laser ablation. Manufacturing of cladding mode strippers using laser ablation consist of removing parts of the cladding by fused silica ablation with a controlled penetration and shape.

We present and characterize an optimized cladding mode stripper design that increases the cladding light loss with a minimal device length and manufacturing time. This design reduces the localized heat generation by improving the heat distribution along the device. We demonstrate a cladding mode stripper written on a 400um fiber with cladding light loss of 20dB, with less than 0.02dB loss in the core and minimal heating of the fiber and coating. The manufacturing process of the designed component is fully automated and takes less than 3 minutes with a very high throughput yield.

Citation Download Citation

M. A. Jebali and E. T. Basso "All fiber cladding mode stripper with uniform heat distribution and high cladding light loss manufactured by CO₂ laser ablation", Proc. SPIE 10513, Components and Packaging for Laser Systems IV, 105131Q (20 February 2018); https://doi.org/10.1117/12.2291955

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