We report on the generation of 94-fs pulses with 12.5-W average output power from an 80-MHz Yb3+:CaGdAlO4(Yb:CALGO) oscillator with pulse energies and peak power levels higher than 150-nJ and 1.45-MW, respectively. To the
best of our knowledge, this is the highest average power ever reported for a sub-100-fs bulk oscillator. Average output
power levels higher than 10-W were also achieved in lower repetition rate oscillators at 23.7 MHz and 42.5 MHz with
pulse durations ranging from 141-fs to 323-fs and corresponding pulse energies as high as 0.42 μJ. In all experiments
stable and self-starting mode-locking with transform-limited pulses and beam quality factors better than M2<1.1 were
achieved. Continuous tunability in mode-locked operation between 1026-nm and 1052-nm was also demonstrated. We
believe that shorter pulses at higher average output powers should be possible and - combined with extended cavities -
such laser systems could reach the μJ pulse energy level with peak powers in the 10-MW regime.
Access to the requested content is limited to institutions that have purchased or subscribe to SPIE eBooks.
You are receiving this notice because your organization may not have SPIE eBooks access.*
*Shibboleth/Open Athens users─please
sign in
to access your institution's subscriptions.
To obtain this item, you may purchase the complete book in print or electronic format on
SPIE.org.
INSTITUTIONAL Select your institution to access the SPIE Digital Library.
PERSONAL Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.