Title :
Tunable InGaAs/AlGaInAs (de)multiplexer based on integrated asymmetric Mach-Zehnder interferometer using quantum well intermixing
Author :
Wong, H.Y. ; Tan, W.K. ; Bryce, A.C. ; Marsh, J.H. ; Arnold, J.M. ; Sorel, M.
Author_Institution :
Dept. of Electr. & Electron. Eng., Glasgow Univ., UK
Abstract :
Monolithic asymmetric Mach-Zehnder interferometers have been fabricated in InGaAs/AlGaInAs using quantum well intermixing. The devices combine low-loss waveguides, MMI couplers and phase shifters. Extinction ratio of more than 22 dB is achieved. Efficient wavelength tunability is demonstrated over a full wavelength period with injection current as low as 15 mA.
Keywords :
Mach-Zehnder interferometers; demultiplexing equipment; integrated optics; integrated optoelectronics; multiplexing equipment; optical communication equipment; optical couplers; optical fabrication; optical phase shifters; optical tuning; optical waveguides; quantum well devices; 15 mA; InGaAs-AlGaInAs; MMI couplers; asymmetric Mach-Zehnder interferometer; extinction ratio; integrated Mach-Zehnder interferometer; interferometer fabrication; low-loss waveguides; monolithic interferometers; phase shifters; quantum well intermixing; tunable demultiplexer; tunable multiplexer; wavelength tunability; Arm; Channel spacing; Conducting materials; Couplers; Indium gallium arsenide; Indium phosphide; Optical waveguides; Phase shifters; Phase shifting interferometry; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society, 2004. LEOS 2004. The 17th Annual Meeting of the IEEE
Print_ISBN :
0-7803-8557-8
DOI :
10.1109/LEOS.2004.1363163
