Title :
Novel optical switches based on carrier injection in three and five waveguide couplers: TIC and SIC
Author :
Acklin, B. ; Schienle, Meinrad ; Weiss, Benjamin ; Stoll, L. ; Muller, Gunter
Author_Institution :
Corp. Res. & Dev., Siemens AG, Munich
fDate :
2/3/1994 12:00:00 AM
Abstract :
Two novel optical switches using the plasma effect in InGaAsP/InP are proposed and demonstrated. They combine mode evolution and two mode interference in multi-waveguides. Three guide switches using transverse index compensation (TIC) show a crosstalk of -25 dB at 3 mA current. Five-guide switches with symmetrical injection compensation (SIC) exhibit a `digital´ characteristic with a crosstalk below -15 dB at 12 mA current
Keywords :
III-V semiconductors; crosstalk; electro-optical devices; gallium arsenide; indium compounds; integrated optics; optical couplers; optical switches; optical waveguides; solid-state plasma; 12 mA; 3 mA; InGaAsP-InP; InGaAsP/InP; SIC; TIC; carrier injection; crosstalk; digital characteristic; five waveguide couplers; mode evolution; multi-waveguides; optical switches; plasma effect; symmetrical injection compensation; three waveguide couplers; transverse index compensation; two mode interference;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19940171
