Passively mode-locked ytterbium fiber laser utilizing chirped-fiber-Bragg-gratings for dispersion control |
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Authors: | Ori Katz Yoav Sintov Yehuda Nafcha Yaakov Glick |
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Institution: | Nonlinear Optics Group, Electro-Optics Division, Soreq NRC, Yavne 81000, Israel |
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Abstract: | A robust, self-starting picosecond pulse source based on ytterbium (Yb3+) doped fiber laser is described. Utilizing a chirped-fiber-Bragg-grating (C-FBG) for dispersion control, solitary mode-locking is obtained without bulk dispersion compensation elements. A semiconductor saturable absorber (SESAM) is used for stable self-starting. 3.6 ps pulses are produced, with 45 MHz basic repetition-rate and mW scale average output power at 1060 nm. Detailed numerical simulations based on the modified nonlinear Schrödinger equation agree well with the experimental results and are used as a design tool for the solitary mode-locked picosecond laser. The presented design can be simply employed in an all-fiber environmentally-stable system. |
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Keywords: | Mode-locked lasers Optical fiber lasers Semiconductor devices Ytterbium |
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