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.
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M. A. Jebali, 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);