Title :
Design and Experimental Evaluation of Active-Passive Integrated Microring Lasers: Threshold Current and Spectral Properties
Author :
Kapsalis, Alexandros ; Stamataki, Ioanna ; Mesaritakis, Charis ; Syvridis, Dimitris ; Hamacher, Michael ; Heidrich, Helmut
Author_Institution :
Dept. of Inf. & Telecommun., Univ. of Athens, Athens, Greece
Abstract :
The relation between the structural parameters and the operating characteristics of microring lasers is examined through theoretical estimations, waveguiding simulations, and experimental measurements. The effects of ring radius, waveguide profile, and overall geometry on the coupling efficiency and subsequently on threshold and spectral characteristics are thoroughly investigated. Coupling efficiency is calculated through 3-D finite difference in time domain methods. Fabricated devices consist of active microrings integrated with passive bus waveguides using wafer bonding techniques.
Keywords :
finite difference time-domain analysis; microcavity lasers; optical waveguides; ring lasers; wafer bonding; 3D finite difference time domain methods; active microrings; active-passive integrated microring laser; coupling efficiency; operating characteristics; passive bus waveguides; spectral properties; structural parameter; threshold current; wafer bonding technique; Finite difference methods; Laser modes; Ring lasers; Spectral analysis; Threshold current; Wafer bonding; Waveguide lasers; 3-D–finite-difference time-domain; active-passive integration; microring lasers; short external cavity; threshold current; wafer bonding; wavelength tuning;
Journal_Title :
Quantum Electronics, IEEE Journal of
DOI :
10.1109/JQE.2011.2175480
