The fundamental and dynamic properties of InGaAs-InGaAsP lasers, where emission wavelengths were blue-shifted by quantum-well intermixing through ion implantation and annealing, were investigated to assess possible degradation by intermixing. It was found that the fundamental properties such as threshold current and slope efficiency were largely unchanged even after as much as 120 nm of wavelength shift. Meanwhile, the dynamic properties such as modulation efficiency and K factor were degraded after just a moderate degree of intermixing, but the degradation was not worsened by further intermixing. Provided the finite degradation of dynamic properties is tolerable, the present intermixing technique will be very useful for the fabrication of photonic integrated circuits. © 2006 IEEE.
Bibliographical noteKAUST Repository Item: Exported on 2020-10-01
Acknowledgements: Manuscript received February 18, 2010; revised March 28, 2010; accepted April 4, 2010. Date of current version July 23, 2010. This work was supported in part by the U.S. National Science Foundation, under Grant 0725647US, and the U.S. Army Research Laboratory, under Cooperative Agreement No. W911NF-07-2-0064. This paper was recommended by Associate Editor L.J. Mawst.
ASJC Scopus subject areas
- Atomic and Molecular Physics, and Optics
- Electrical and Electronic Engineering
- Condensed Matter Physics