Open AccessHybrid III–V/silicon laser with laterally coupled Bragg grating
Author(s) -
Yulian Cao,
Xiaonan Hu,
Xianshu Luo,
Junfeng Song,
Yujie Cheng,
Chengming Li,
Chongyang Liu,
Hong Wang,
Tsung-Yang Liow,
GuoQiang Lo,
Qijie Wang
Publication year - 2015
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.23.008800
Subject(s) - materials science , silicon on insulator , optics , silicon , laser , grating , optoelectronics , waveguide , fiber bragg grating , hybrid silicon laser , wavelength , substrate (aquarium) , silicon photonics , physics , oceanography , geology
In this paper, we demonstrate a compact electrically pumped distributed-feedback hybrid III-V/silicon laser with laterally coupled Bragg grating for the first time to the best of our knowledge. The hybrid laser structure consists of AlGaInAs/InP multi-quantum-well gain layers on top of a laterally corrugated silicon waveguide patterned on a silicon on insulator (SOI) substrate. A pair of surface couplers is integrated at the two ends of the silicon waveguide for the optical coupling and characterization of the ouput light. Single wavelength emission of ~1.55µm with a side-mode-suppression- ratio larger than 20dB and low threshold current density of 1.54kA/cm(2) were achieved for the device under pulsed operation at 20 °C.