Abstract

Vertical-cavity surface-emitting lasers (VC-SELs) are very attractive and promising for application to optical interconnections. In fiber-based interconnections, a simple and efficient fiber coupling is required. Assistance of planar microoptics was proposed as an elegant solution,¹ while high coupling efficiency was demonstrated in direct coupling owing to narrow beam divergence of the SEL.² In this paper, we demonstrate a direct fiber coupling to a SEL with a backside guiding hole. By inserting a fiber to the hole, comparable coupling efficiency is ob­tained to the coupling to a lasing SEL.

© 1995 IEEE