Mode locking of high-power neodymium:yttrium aluminum garnet lasers at ultrahigh repetition rates

Abstract

A high‐power lamp‐pumped Nd:YAG laser has been harmonically mode locked using a specially fabricated GaP mode locker at repetition rates of 0.25, 0.5, and 1 GHz. At these ultrahigh mode‐locking frequencies the pulse duration is reduced as well. Stable 31 ps pulses have been produced with 4 W of average output power.