title: Continuous-wave Nd-doped polymer lasers.
abstract: Continuous-wave laser operation at 1060.2 nm was demonstrated in polymer channel waveguides doped with a Nd complex above an absorbed pump threshold of 50 mW. The highest slope efficiency of 2.15% was obtained with 5% outcoupling, resulting in a maximum output power of 0.98 mW. Lasing was also achieved on the quasi-three-level 878 nm transition above a threshold of 74.5 mW. A slope efficiency of 0.35% and an output power of 190 microm were obtained with 2.2% outcoupling. Long-term, stable cw laser operation over at least 2 h was demonstrated, indicating the durability of the polymer gain medium.
authors.affiliation: Integrated Optical Micro Systems, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands. chg@orc.soton.ac.uk
authors.forename: Christos
authors.initials: C
authors.lastname: Grivas
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
authors.forename: Mart B J
authors.initials: MB
authors.lastname: Diemeer
authors.forename: Alfred
authors.initials: A
authors.lastname: Driessen
authors.forename: Markus
authors.initials: M
authors.lastname: Pollnau