Title :
Design and fabrication of optical electroabsorption modulator for high speed and high efficiency
Author_Institution :
Dept. of Photonics, Nat. Sun Yat-sen Univ., Kaohsiung, Taiwan
Abstract :
Design for high-speed and high-extinction ratio electroabsorption modulator (EAM) has been presented and reviewed. Based on waveguide structure, reducing both parasitic capacitance and cladding impedance can enhance the microwave performance and bandwidth of EAM. With selective undercut etching active region, low optical as well as microwave loss can be attained to further improve EAM modulation. By applying high band offset ratio in quantum well, EAM active region, strong exciton and high carrier confinement enlarge the modulation efficiency.
Keywords :
capacitance; electroabsorption; etching; optical design techniques; optical fibre cladding; optical fibre communication; optical fibre fabrication; optical fibre losses; optical modulation; optical waveguide components; quantum well devices; EAM modulation improvement; cladding impedance; high carrier confinement; high-extinction EAM microwave bandwidth enhancement; high-speed EAM design performance; microwave loss; optical electroabsorption modulator fabrication; optical loss; parasitic capacitance; quantum well; undercut etching active region; waveguide structure; High-speed optical techniques; Integrated optics; Optical device fabrication; Optical modulation; Optical waveguides; Quantum well devices; Electroabsorption modulator; high extinction ratio; high speed; waveguide;
Conference_Titel :
Optical Communications and Networks (ICOCN), 2015 14th International Conference on
Conference_Location :
Nanjing
DOI :
10.1109/ICOCN.2015.7203651
