Optimization of Hybrid Silicon Microring Lasers

Author

Liang, D. ; Fiorentino, M. ; Srinivasan, S. ; Todd, S.T. ; Kurczveil, G. ; Bowers, J.E. ; Beausoleil, R.G.

Author_Institution

Intell. Infrastruct. Lab., Hewlett-Packard Labs., Palo Alto, CA, USA

Volume

3

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

580

Lastpage

587

Abstract

In this paper, we review the recent optimization work in hybrid silicon microring lasers. Device structure and fabrication procedures are discussed first, followed by two major improvements in carrier injection and thermal management. A simple, well-controlled quantum well undercut leads to about 20% enhancement of injection efficiency. A silicon-on-diamond (SOD) substrate is demonstrated to fundamentally solve the device heating issue for silicon-on-insulator (SOI)-based active devices. SOD rib waveguides show low propagation loss of 0.74 dB/cm, which is 0.2 dB/cm higher than SOI counterparts. More than 22× reduction of device heating in hybrid silicon microring lasers is projected by simulations.

Keywords

diamond; elemental semiconductors; micro-optics; optical waveguides; optimisation; quantum well lasers; rib waveguides; silicon; silicon-on-insulator; C; SOD rib waveguides; Si; carrier injection; device heating; hybrid silicon microring lasers; optimization; propagation loss; silicon-on-diamond substrate; silicon-on-insulator; simple quantum well; thermal management; well-controlled quantum well; Fabrication; Optical interconnections; Semiconductor lasers; Semiconductor lasers; fabrication and characterization; optical interconnects;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2011.2146244

Filename

6058716