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17 February 2010 Self-starting passive mode-locked ytterbium fiber laser with variable pulse width
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Abstract
We report a scheme for controlling pulse width in a robust self-starting mode-locked ytterbium fiber laser using a semiconductor saturable absorber mirror (SESAM). We demonstrate that the pulse width in a mode-locked laser made of all-normal-dispersive fiber can be adjusted by changing ump power to the laser or by adjusting the axial position of the SESAM with respect to a focusing beam. We have obtained optical pulse width of 7.4 ps and the adjustable range was 2 ps without dispersion compensators in the all-normal-dispersive cavity and provides a high reliability of turn-key operation. We have explained that the principle of position dependent pulse width change in a mode-locked laser with a SESAM and verified with numerical simulations.
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Seung Bum Cho, Hoseong Song, Sangyoun Gee, and Dug Young Kim "Self-starting passive mode-locked ytterbium fiber laser with variable pulse width", Proc. SPIE 7580, Fiber Lasers VII: Technology, Systems, and Applications, 75802C (17 February 2010); https://doi.org/10.1117/12.841629
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