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Proceedings Paper

InP-on-SOI electrically injected nanolaser diodes (Conference Presentation)
Author(s): Guillaume Crosnier; Dorian Sanchez; Paul Monnier; Isabelle Sagnes; Sophie Bouchoule; Grégoire Beaudoin; Rama Raj; Fabrice Raineri

Paper Abstract

The development of energy-efficient ultra-compact nanolaser diodes integrated in a Silicon photonic platform is of paramount importance for the deployment of optical interconnects for intra-chip communications. In this work, we present our results on InP-based electrically injected photonic crystal (PhC) nanolaser integrated on a SOI waveguide circuitry. The lasers emit at room temperature in a continuous wave regime at 1560nm and exhibit thresholds of 0.1mA at 1V. We measure more than 100μW of light coupled into the SOI waveguides giving a wall-plug efficiency greater than 10%. The principle of the lasers relies on the use of a 1D PhC nanocavity made of InP-based materials positioned on top of a SOI waveguide to enable evanescent wave coupling. More in details, the laser cavity is a 650nm-wide rib waveguide drilled with a single row of equally sized holes (radius~100nm). The distance between the holes is varied to obtain Q-factors larger than 106 for a structure fully encapsulated in silica with material volume of the order of the cubic wavelength. Vertically, the InP heterostructure is a 450nm thick NIP junction embedding 5 strained InGaAsP quantum wells emitting at 1.53μm. By smartly positioning the metallic contacts, this configuration enables the efficient electrical injection of electron-holes pairs within the cavity without inducing optical losses which led us to demonstrate the laser emission coupled ta a Si waveguide.

Paper Details

Date Published: 20 April 2017
PDF: 1 pages
Proc. SPIE 10123, Novel In-Plane Semiconductor Lasers XVI, 101230L (20 April 2017); doi: 10.1117/12.2252258
Show Author Affiliations
Guillaume Crosnier, Lab. de Photonique et de Nanostructures (France)
Dorian Sanchez, Lab. de Photonique et de Nanostructures (France)
Paul Monnier, Lab. de Photonique et de Nanostructures (France)
Isabelle Sagnes, Lab. de Photonique et de Nanostructures (France)
Sophie Bouchoule, Lab. de Photonique et de Nanostructures (France)
Grégoire Beaudoin, Lab. de Photonique et de Nanostructures (France)
Rama Raj, Lab. de Photonique et de Nanostructures (France)
Fabrice Raineri, Lab. de Photonique et de Nanostructures (France)

Published in SPIE Proceedings Vol. 10123:
Novel In-Plane Semiconductor Lasers XVI
Alexey A. Belyanin; Peter M. Smowton, Editor(s)

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