title: Effects of annealing on performances of 1.3-μm InAs-InGaAs-GaAs quantum dot electroabsorption modulators.
abstract: In this work, we investigated the effects of quantum dot (QD) annealing (as-grown, 600°C-annealed, and 750°C-annealed) on the preliminary performances of 1.3-μm InAs-InGaAs-GaAs quantum dot electroabsorption modulators (QD-EAMs). Both extinction ratio and insertion loss were found to vary inversely with the annealing temperature. Most importantly, the 3-dB response of the 750°C-annealed lumped-element QD-EAM was found to be 1.6 GHz at zero reverse bias voltage - the lowest reverse bias voltage reported. We believe that this work will be beneficial to researchers working on on-chip integration of QD-EAMs with other devices since energy consumption will be an important consideration.
authors: Division of Microelectronics, School of Electrical and Electronic Engineering, Nanyang Technological University, 50 Nanyang Avenue, S1-B2c-21, Singapore, 639798, Singapore. sylee@ntu.edu.sg.
authors: Shuh Ying
authors: SY
authors: Lee
authors: Soon Fatt
authors: SF
authors: Yoon
authors: Andrew Cy
authors: AC
authors: Ngo
authors: Tina
authors: T
authors: Guo
references: Nanoscale Res Lett. 2008 Dec;3(12):486-90
references: 20596370