Abstract
We produced transform-limited pulses as short as 130 fs with 160 mW average output power from a Kerr-shift-mode-locked (KSM) Nd:glass laser. With this result we have demonstrated for the first time that an intracavity semiconductor A-FPSA1 can continuously start Kerr induced passive modelocking without degrading the stability of the steady-state femtosecond pulse train. In addition, we introduce a new modelocking mechanism, which we call Kerr-shift-mode-locking (KSM).
© 1993 Optical Society of America
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