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Authors: J. Van Campenhout, P. Rojo Romeo, P. Regreny, C. Seassal, D. Van Thourhout, S. Verstuyft, L. Di Cioccio, J.-M. Fedeli, C. Lagahe, R. Baets
Title: Electrically pumped InP-based microdisk lasers integrated with a nanophotonic silicon-on-insulator waveguide circuit
Format: International Journal
Publication date: 5/2007
Journal/Conference/Book: Optics Express
Volume(Issue): 15(11) p.6744-6749
Internal Reference: [N-614]
Download: Download this Publication (2.5MB) (2.5MB)

Abstract

A compact, electrically driven light source integrated on silicon is a key component for large-scale integration of electronic and photonic integrated circuits. Here we demonstrate electrically injected continuous-wave lasing in InP-based microdisk lasers coupled to a sub-micron silicon wire waveguide, fabricated through heterogeneous integration of InP on silicon-on-insulator (SOI). The InP-based microdisk has a diameter of 7.5 ìm and a thickness of 1 ìm. A tunnel junction was incorporated to efficiently contact the p-side of the pn-junction. The laser emits at 1.6 ìm, with a threshold current as low as 0.5 mA under continuous-wave operation at room temperature, and a threshold voltage of 1.65 V. The SOI-coupled laser slope efficiency was estimated to be 30 ìW/mA, with a maximum unidirectional output power of 10 ìW.

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