Abstract
We report the first demonstration, to our knowledge, of the femtosecond laser operation by using a new alloyed Yb:GYSO crystal as the gain medium. With a -doped sample and chirped mirrors for dispersion compensation, we obtained pulses as short as at the center wavelength of . The average mode-locking power is , and the pulse repetition frequency is .
© 2008 Optical Society of America
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