Abstract
An optimized polymer-based fiber cladding mode stripper (CMS) is presented experimentally. A unique partial fiber stripping method is introduced in CMS fabrication to enable distributed power extraction and temperature along the length of the CMS. The designed CMS based on a 400µm double-clad fiber (DCF) extracts 300W of inner cladding power, with an attenuation coefficient of 18.8dB along with a temperature gradient of 0.17°C/watt. The fabricated CMS is used to develop an all-fiber 150W thulium fiber laser at 1.94µm.
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