Title :
Investigation on butt-coupling of VCSEL into PCB integrated waveguides
Author :
Hormanski, Piotr ; Nieweglowski, Krzysztof ; Wolter, Klaus-JÜrgen ; Patela, Sergiusz
Author_Institution :
Fac. of Microsystems Electron. & Photonics, Wroclaw Univ. of Technol., Poland
Abstract :
Optical interconnections on printed circuit boards are a promising approach to increase the bandwidth in future links. Polymer waveguides are one possible solution for creating such optical connections. The coupling of a light source into such a structure is a crucial point in optical interconnection to obtain low transmission loss. The paper shows the butt-coupling conditions between a vertical cavity surface emitting laser (VCSEL) and a highly multimode PCB integrated waveguide realized using "waveguides-in-copper" technology. Two types of VCSELs are used - a lensed one and a naked laser chip without any optics. The influence of lateral and axial laser displacement on coupling efficiency is demonstrated. One the basis of this experiment, the optimal mutual position of the laser and the waveguide can be found for acceptable quality of transmission.
Keywords :
integrated optics; optical interconnections; optical waveguides; printed circuit accessories; surface emitting lasers; PCB integrated waveguides; axial displacement; butt-coupling; lateral displacement; lensed VCSEL; optical interconnections; polymer waveguides; printed circuit boards; transmission loss; vertical cavity surface emitting laser; waveguides-in-copper technology; Bandwidth; Optical coupling; Optical interconnections; Optical polymers; Optical waveguides; Printed circuits; Stimulated emission; Surface emitting lasers; Vertical cavity surface emitting lasers; Waveguide lasers;
Conference_Titel :
Electronics Technology: Meeting the Challenges of Electronics Technology Progress, 2004. 27th International Spring Seminar on
Print_ISBN :
0-7803-8422-9
DOI :
10.1109/ISSE.2004.1490399
