Integrating III-V quantum dot lasers on silicon substrates for silicon photonics

M. Liao; S. Chen; M. Tang; J. Wu; W. Li; K. Kennedy; I. Ross; A. Seeds; H. Liu

doi:10.1117/12.2249761

20 February 2017 Integrating III-V quantum dot lasers on silicon substrates for silicon photonics

M. Liao, S. Chen, M. Tang, J. Wu, W. Li, K. Kennedy, I. Ross, A. Seeds, H. Liu

Proceedings Volume 10108, Silicon Photonics XII; 101081A (2017) https://doi.org/10.1117/12.2249761
Event: SPIE OPTO, 2017, San Francisco, California, United States

Abstract

The realization of efficient III-V lasers directly grown on Si substrates is highly desirable for large-scale and low-cost silicon based optoelectronic integrated circuits. However, it has been hindered by the high threading dislocation (TD) density generated at the interface between III-V compounds and Si substrates. Introducing dislocation filter layers (DFLs) to suppress the TD propagation into the active region becomes a key factor for realising lasers with advanced performance. In this paper, optimization of InGaAs/GaAs DFLs in III-V quantum dot (QD) lasers on Si is demonstrated. Based on these optimized DFLs and other strategies, we have achieved a high performance electrically pumped QD laser on a Si substrate with threshold current density of 62.5 A cm^-2, over 105 mW output power, maximum operation temperature of 120 °C and over 100,158 h of extrapolated lifetime.

Conference Presentation

Citation Download Citation

M. Liao, S. Chen, M. Tang, J. Wu, W. Li, K. Kennedy, I. Ross, A. Seeds, and H. Liu "Integrating III-V quantum dot lasers on silicon substrates for silicon photonics", Proc. SPIE 10108, Silicon Photonics XII, 101081A (20 February 2017); https://doi.org/10.1117/12.2249761

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