Referenced in: none

Automatically associated channels: Slo1

Title: Guided continuous-wave and graphene-based Q-switched lasers in carbon ion irradiated Nd:YAG ceramic channel waveguide.

Authors: Yang Tan, Shavkat Akhmadaliev, Shengqiang Zhou, Shangqian Sun, Feng Chen

Journal, date & volume: Opt Express, 2014 Feb 10 , 22, 3572-7

PubMed link: http://www.ncbi.nlm.nih.gov/pubmed/24663647

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.