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19 August 2011 Preparation, package, and high-power fiber laser experiment of large mode-area fiber grating
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Abstract
The inscription method of FBGs on large-mode-area double-clad fibers (LMA-DCFs) with phase mask technique was described. A pair of LMA FBGs was prepared and the center wavelengths of them were both around 1076nm with 3 dB bandwidths of about 0.5nm. The reflectivities of them are 99% and 10% in the fundamental mode, respectively. In order to be protected and to withstand high-power laser, the FBGs were metally packaged, and then applied to an Yb3+-doped LMA-DCF laser as the laser cavity. An output power of 314 W centered at 1075.71 nm with a slope efficiency of 60% was achieved.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yuan-yuan Fan, Jun Zhou, Bing He, Ji-tuo Zheng, Hou-kang Liu, Xi-jia Gu, and Qi-hong Lou "Preparation, package, and high-power fiber laser experiment of large mode-area fiber grating", Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81922C (19 August 2011); https://doi.org/10.1117/12.900574
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