Abstract
An all fiber-based Mamyshev oscillators (MO) is experimentally demonstrated to achieve high energy pulse output. In this high energy MO system, the maximum single pulse energy of 153 nJ was achieved with 1.5 W average power. The pulse width could be externally compressed to < 100 fs by a pair of diffraction gratings. Considering the insertion loss of gratings, the maximum peak power was >1 MW. Meanwhile, this system is verified to have good long-term stability and can run several hours stably. This is the highest record in pulse energy from the all fiber-based ultrafast laser oscillator with picosecond/femtosecond pulse duration, to the best of our knowledge. Such a high energy oscillator could apply a promising source for laser micromachining, advanced fabrication, biomedical imaging, and other practical applications.
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