title: Guided continuous-wave and graphene-based Q-switched lasers in carbon ion irradiated Nd:YAG ceramic channel waveguide.
abstract: We demonstrate the lasing performance in the Nd:YAG ceramic channel waveguide produced by the carbon ion irradiation, including the continuous-wave (cw) and graphene Q-switched configurations. The highest slope efficiency of 56% and the lowest threshold of 40 mW have been obtained for the cw waveguide laser. With graphene as a saturable absorber, the Q-switched laser produces stable pulses with 57 ns pulse duration and 77 nJ pulse energy, respectively. Under the variation of the pumping power, the repetition of the pulse laser could be modified from 1.5 MHz to 4.1 MHz.
authors.forename: Yang
authors.initials: Y
authors.lastname: Tan
authors.forename: Shavkat
authors.initials: S
authors.lastname: Akhmadaliev
authors.forename: Shengqiang
authors.initials: S
authors.lastname: Zhou
authors.forename: Shangqian
authors.initials: S
authors.lastname: Sun
authors.forename: Feng
authors.initials: F
authors.lastname: Chen