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We demonstrate a fiber-based, high-power, high-repetition rate chirped pulse amplification system operating at 1560 nm. The system is seeded by a graphene mode-locked Er-doped fiber laser with 50 MHz repetition rate. The all-fiber amplifier chain consists of three stages, out of which the last stage utilizes a large-mode area Er/Yb co-doped fiber. In order to reduce the complexity of the...