K. Jinguji, PLANAR LIGHTWAVE CIRCUITS - OPTICAL-DEVICES FOR PROCESSING OPTICAL SIGNALS AS LIGHT WITHOUT TRANSFORMING THEM INTO ELECTRICAL SIGNALS, NTT review, 7(1), 1995, pp. 80-86
Planar lightwave circuits (PLCs) are optical de vices which were creat
ed by the marriage of optical fiber fabrication and LSI microfabricati
on technology. PLCs technology is one of the key technologies for mult
imedia communications, This paper describes the development of PLCs fr
om the basic concept to recent innovations.