Erbium-doped fluoride glass waveguides (2008)
Waldmann, M., Caspary, R., Wortmann, D., Gottmann, J., Kowalsky, W.
Low-threshold polymeric distributed feedback lasers with metallic contacts (2004)
Reufer, M., Riechel, S., Lupton, J.M., Feldmann, J., Lemmer, U., Schneider, D., ...
Optical losses in waveguides comprising metallic contacts are thought to be a major hurdle to the realization of organic laser diodes. We demonstrate here that careful tuning of the waveguide mode in...
Laser Modes in Organic Solid-State Distributed Feedback Lasers (2000)
Riechel, S., Lemmer, U., Feldmann, J., Benstem, T., Kowalsky, W., Scherf, Ullrich, ...
Waveguide-integrated PIN photodiode on InP (1987)
Bornholdt, C., Doldissen, W., Fiedler, F., Kaiser, R., Kowalsky, W.
An InGaAs PIN photodiode was vertically integrated with an inverted optical rib waveguide in InGaAsP. Guided light was transferred to and absorbed by the photodiode at a rate of 0.07 dB/ mu m. For...