We have controlled the amount of spatial hole burning in a diode end-pumped Nd:YAG laser to quantitatively analyze its role in active mode locking. We demonstrate inhomogeneous broadening of the lasing bandwidth to >60 GHz, accompanied by a pulse-width reduction from 40 to 15 ps and an ~30% increase in the time–bandwidth product. Both homogeneous and inhomogeneous broadening have been included in a successful calculation of the steady-state pulse width.
© 1995 Optical Society of America
Original Manuscript: August 9, 1994
Published: January 1, 1995
C. J. Flood, D. R. Walker, and H. M. van Driel, "Effect of spatial hole burning in a mode-locked diode end-pumped Nd:YAG laser," Opt. Lett. 20, 58-60 (1995)