Continuous-wave Nd-doped polymer lasers.
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.
Grivas
Christos
C
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
Yang
Jing
J
Diemeer
Mart B J
MB
Driessen
Alfred
A
Pollnau
Markus
M