Liu Liu, Günther Roelkens, et al.
Journal of Nanoscience and Nanotechnology
We report on the performance of a compact multiwavelength laser (MWL) source heterogeneously integrated with and coupled to a silicon-on-insulator (SOI) waveguide circuit. The MWL consists of four InP-based microdisk lasers, coupled to a common SOI wire waveguide. The microdisk lasers operate in continuous-wave regime at room temperature, with a threshold current around 0.9 mA and a waveguide-coupled slope efficiency of up to 8 μW/mA, for a microdisk diameter of 7.5 μm. The output spectrum contains four laser peaks uniformly distributed within the free-spectral range of a single microdisk. While thermal crosstalk is negligible, laser peak output powers vary up to 8 dB for equal microdisk drive currents, as a result of loss due to coupling with higher order modes supported by the 1-μm-thick microdisks. This nonuniformity could be eliminated by reducing the microdisk thickness. © 2008 IEEE.
Liu Liu, Günther Roelkens, et al.
Journal of Nanoscience and Nanotechnology
Gunther Roelkens, Utsav Dave, et al.
GFP 2014
Joris Van Campenhout, William M. J. Green, et al.
CLEO/QELS 2010
Liu Liu, Joris Van Campenhout, et al.
Applied Physics Letters