Title :
20-Channel micro-optic grating demultiplexer for 1.1¿1.6 ¿m band using a small focusing parameter graded-index rod lens
Author :
Seki, M. ; Kobayashi, K. ; Odagiri, Y. ; Shikada, M. ; Tanigawa, T. ; Ishikawa, R.
Author_Institution :
Nippon Electric Co. Ltd., Opto-Electronics Research Laboratories, Kawasaki, Japan
Abstract :
A 20-channel micro-optic grating demultiplexer with a single-mode input fibre has been developed for 1.1¿1.6 ¿m band using a newly developed graded-index (Selfoc) rod lens with a small focusing parameter and an Si-etched reflection grating. Insertion losses were 1.9 to 3.5 dB. Isolation between adjacent channels was less than ¿20 dB.
Keywords :
lenses; multiplexing equipment; optical communication equipment; optical fibres; 1.1 to 1.6 microns band; 20-channel micro-optic grating demultiplexer; Selfoc rod lens; Si-etched reflection grating; optical fibre; single-mode input fibre; small focusing parameter graded-index rod lens;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19820176
