Title :
Monolithic integration of an all-optical Mach-Zehnder demultiplexer using an asymmetric twin-waveguide structure
Author :
Studenkov, P.V. ; Gokhale, M.R. ; Lin, Weisi ; Glesk, Ivan ; Prucnal, Paul R. ; Forrest, Stephen R.
Author_Institution :
Dept. of Electr. Eng., Princeton Univ., NJ, USA
fDate :
6/1/2001 12:00:00 AM
Abstract :
We demonstrate monolithic integration of a twin-waveguide Mach-Zehnder terahertz optical asymmetric demultiplexer (MZ-TOAD). The InGaAsP-InP device operates at 1.55 μm wavelength and has two semiconductor optical amplifiers in the asymmetric MZ interferometer configuration with a single control input and a built-in switching delay. A 28-ps full-width at half-maximum (FWHM) switching window with high contrast ratio for a range of control powers is obtained using a counter-propagating optical signal and control pulses.
Keywords :
III-V semiconductors; Mach-Zehnder interferometers; demultiplexing equipment; gallium arsenide; indium compounds; integrated optics; optical communication equipment; optical waveguides; semiconductor optical amplifiers; 1.55 mum; InGaAsP-InP; InGaAsP-InP device; MZ-TOAD; all-optical Mach-Zehnder demultiplexer; asymmetric MZ interferometer configuration; asymmetric twin-waveguide structure; control input; control powers; control pulses; counter-propagating optical signal; monolithic integration; semiconductor optical amplifiers; switching delay; switching window; twin-waveguide Mach-Zehnder terahertz optical asymmetric demultiplexer; Integrated optics; Monolithic integrated circuits; Optical control; Optical interferometry; Optical pulses; Power semiconductor switches; Propagation delay; Pulse amplifiers; Semiconductor optical amplifiers; Stimulated emission;
Journal_Title :
Photonics Technology Letters, IEEE
