Open AccessMembrane distributed-reflector laser integrated with SiOx-based spot-size converter on Si substrate
Author(s) -
Hidetaka Nishi,
T. Fujii,
Koji Takeda,
Koichi Hasebe,
Takaaki Kakitsuka,
Tai Tsuchizawa,
Tsuyoshi Yamamoto,
Koji Yamada,
Shinji Matsuo
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.018346
Subject(s) - materials science , optics , reflector (photography) , substrate (aquarium) , modulation (music) , laser , optoelectronics , waveguide , coupling loss , optical fiber , physics , light source , oceanography , acoustics , geology
We demonstrate monolithic integration of a 50-μm-long-cavity membrane distributed-reflector laser with a spot-size converter, consisting of a tapered InP wire waveguide and an SiOx waveguide, on SiO 2 /Si substrate. The device exhibits 9.4-GHz/mA 0.5 modulation efficiency with a 2.2-dB fiber coupling loss. We demonstrate 25.8-Gbit/s direct modulation with a bias current of 2.5 mA, resulting in a low energy cost of 132 fJ/bit.