| Literature DB >> 26561171 |
Daisuke Inoue, Takuo Hiratani, Kai Fukuda, Takahiro Tomiyasu, Tomohiro Amemiya, Nobuhiko Nishiyama, Shigehisa Arai.
Abstract
The direct modulation characteristics of a membrane distributed feedback (DFB) laser on a silicon substrate were investigated. Enhancement of the optical confinement factor in the membrane structure facilitates the fabrication of a strongly index-coupled (κ(I) = 1500 cm(-1)) DFB laser with the cavity length of 80 µm and a threshold current of 270 µA. Small-signal modulation measurements yielded a -3dB bandwidth of 9.5 GHz at 1.03-mA bias current, with modulation efficiency of 9.9 GHz/mA(1/2), which is, to the best of our knowledge, the highest value among those reported for DFB lasers.Year: 2015 PMID： 26561171 DOI： 10.1364/OE.23.029024
Source DB: PubMed Journal: Opt Express ISSN： 1094-4087 Impact factor: 3.894