Abstract

Experiments on tunable lasers have been presented which show the high performance of devices as well as their capability to be integrated.¹ The aim of the present paper is to discuss some of the problems which arise if they are composed to an optical frequency division multiplexing (OFDM) system based on a multistage interconnection network with regular space-frequency interconnects. There the space interconnects (links) are deflected in a regular manner and at each link a fixed number of frequency channels is assumed which also are permuted according to a certain rule which is repeated at each stage. In this way, the least number of stages is needed for the nonblocking interconnection. The general concept presented may be extended to highly regular structures (nearest-neighbour interconnects).

© 1993 Optical Society of America