24 October 2017 Estimation of mode instability threshold based on local thermal load
Author Affiliations +
Proceedings Volume 10457, AOPC 2017: Laser Components, Systems, and Applications; 104571R (2017) https://doi.org/10.1117/12.2284476
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
The behavior of the mode instability (MI) threshold in the double cladding Yb-doped fiber amplifier when the amplifier with different local heat load is studied theoretically and experimentally. A theoretical model is constructed, and the effects of different laser parameters on the local thermal load of the gain fiber are analyzed theoretically, such as pump direction, pump linewidth, thermal conductivity of cooling medium. An experimental structure is described. The effects of different local heat load on the MI threshold when the fiber amplifier have the same total or average heat load is studied. The theoretical and experimental results reveal that the MI threshold can be estimated by the local heat load of the gain fiber.
© (2017) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yanshan Wang, Yanshan Wang, Weiwei Ke, Weiwei Ke, Yinhong Sun, Yinhong Sun, Qinyong Liu, Qinyong Liu, Wanjing Peng, Wanjing Peng, Congwen Zha, Congwen Zha, Tenglong Li, Tenglong Li, Yi Ma, Yi Ma, Chun Tang, Chun Tang, } "Estimation of mode instability threshold based on local thermal load", Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 104571R (24 October 2017); doi: 10.1117/12.2284476; https://doi.org/10.1117/12.2284476

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