Title :
High modulation efficiency and high power 1060 nm tapered lasers with separate contacts
Author :
Michel, N. ; Odriozola, H. ; Kwok, C.H. ; Ruiz, M. ; Calligaro, M. ; Lecomte, M. ; Parillaud, O. ; Krakowski, M. ; Xia, Mingjun ; Penty, Richard V. ; White, Ian H. ; Tijero, J.M.G. ; Esquivias, Ignacio
Author_Institution :
Alcatel-Thales III-V Lab., Palaiseau
Abstract :
A high direct optical modulation amplitude of more than 1.6 W, modulation efficiencies of 20 W/A at 700 Mbit/s and 50 W/A for quasi-static modulation, and a very high optical extinction ratio of 19 dB have been demonstrated in custom-designed gain guided tapered lasers emitting at 1060 nm. The devices were fabricated with split contacts, allowing the separate injection of the ridge waveguide and tapered sections. The modulation of a large output power with low modulating current was achieved by modulating the current injected into the ridge waveguide section of the device.
Keywords :
laser beams; optical modulation; optical waveguides; ridge waveguides; bit rate 700 Mbit/s; gain 19 dB; high direct optical modulation amplitude; high modulation efficiency; high power tapered lasers; quasi-static modulation; ridge waveguide; separate contacts; very high optical extinction ratio; wavelength 1060 nm;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20093298
