Abstract

Pulse compression and pedestal suppression can be realized simultaneously by employing an unbalanced nonlinear optical loop mirror (NOLM). Only if the optimal conditions of soliton compression for the pulse with high initial power in the NOLM are satisfied and the asymmetrical attenuation in the NOLM is optimized can the transform-limited and pedestal-free narrow pulse be obtained. Utilizing this technique, nearly transform-limited and pedestal-free ∼3 ps pulses with 2.5 GHz repetition rate were obtained experimentally. The experimental results verified the optimization criteria of the NOLM compressor.

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