Title :
Realization and characterization of 8×8 resonant cavity LED arrays mounted onto CMOS drivers for POF-based interchip interconnections
Author :
Bockstaele, Ronny ; Coosemans, Thierry ; Sys, Carl ; Vanwassenhove, Luc ; Van Hove, An ; Dhoedt, Bart ; Moerman, Ingrid ; Van Daele, Peter ; Baets, Roel G. ; Annen, Richard ; Melchior, Hans ; Hall, Jon ; Heremans, Paul L. ; Brunfaut, Marnik ; Van Campenho
Author_Institution :
Dept. of Inf. Technol., Ghent Univ., Belgium
Abstract :
An 8×8 array of resonant-cavity light emitting diodes (RCLED´s) emitting at 980 nm and flip-chip mounted onto complimentary metal-oxide-semiconductor (CMOS) integrated drivers, is presented. The RCLED´s are optimized for maximal extraction efficiency into the numerical aperture of polymer optical fibers (NA=0.5) and minimal optical crosstalk. Design of the optimal cavity structure is presented, and 8×8 arrays are realized and mounted directly onto standard CMOS chips using a solder reflow technique. The CMOS integrated drivers are designed for high-speed operation and low-power consumption, and are realized in 0.8 and 0.6-μm CMOS technology. The electrooptical modules have been realized and characterized, and over 50-μW optical power coupled to POF at 3-mA drive current is reported. Open eye diagrams at operation speed up to 250 Mb/s are presented. These characteristics are compatible with CMOS integrated low-power receivers
Keywords :
CMOS integrated circuits; driver circuits; flip-chip devices; integrated optoelectronics; light emitting diodes; optical arrays; optical interconnections; optical resonators; μW optical power; 0.6 mum; 0.8 mum; 3 mA; 50 muW; 8×8 resonant cavity LED arrays; 980 nm; CMOS drivers; CMOS integrated drivers; CMOS integrated low-power receivers; POF-based interchip interconnections; complimentary metal-oxide-semiconductor integrated drivers; electrooptical modules; flip-chip mounted; low-power consumption; mA drive current; maximal extraction efficiency; minimal optical crosstalk; numerical aperture; open eye diagrams; optical receivers; optimal cavity structure design; polymer optical fibers; resonant-cavity light emitting diodes; Apertures; CMOS technology; High speed optical techniques; Light emitting diodes; Optical arrays; Optical crosstalk; Optical fibers; Optical polymers; Optical receivers; Resonance;
Journal_Title :
Selected Topics in Quantum Electronics, IEEE Journal of
DOI :
10.1109/2944.778294
