We demonstrate a high-power Q-switched fiber laser system emitting 26 mJ pulse energy with sub 60 ns pulses. In combination with a repetition rate of 5 kHz an average power of more than 140 W was achieved. These results were enabled by a Large-Pitch fiber, which allows effective single-mode operation with high beam quality (M2 < 1.3) and mode field diameters exceeding 100 µm.

© 2012 Optical Society of America

PDF Article


You do not have subscription access to this journal. Citation lists with outbound citation links are available to subscribers only. You may subscribe either as an OSA member, or as an authorized user of your institution.

Contact your librarian or system administrator
Login to access OSA Member Subscription