Polarisation insensitive and tuneable optical add and drop multiplexer utilising vertically stacked buried semiconductor waveguides

Author

Horita, M. ; Yazaki, T. ; Tanaka, S. ; Matsushima, Y.

Author_Institution

KDD Kamifukuoka R&D Labs., Saitama, Japan

Volume

35

Issue

20

fYear

1999

fDate

9/30/1999 12:00:00 AM

Firstpage

1733

Lastpage

1734

Abstract

A polarisation insensitive and tuneable optical add and drop multiplexer has been realised by utilising vertically stacked buried semiconductor waveguides. The difference in peak wavelength of the dropped light between the two orthogonal polarisations was as small as 0.03 nm, which is much smaller than the 3 dB bandwidth of 0.4 nm. The difference in peak power was also as small as 0.7 dB. Furthermore, the polarisation insensitivity was maintained even during wavelength tuning

Keywords

MOCVD; light polarisation; multiplexing equipment; optical communication equipment; optical directional couplers; optical fabrication; optical tuning; optical waveguide filters; semiconductor devices; sputter etching; telecommunication network routing; vapour phase epitaxial growth; wavelength division multiplexing; bandwidth; dropped light; orthogonal polarisations; peak power; peak wavelength; polarisation insensitive multiplexer; polarisation insensitivity; tuneable optical add and drop multiplexer; vertically stacked buried semiconductor waveguides; wavelength tuning;

fLanguage

English

Journal_Title

Electronics Letters

Publisher

iet

ISSN

0013-5194

Type

jour

DOI

10.1049/el:19991207

Filename

811150