Broadband photonic switching using guided-wave fabrics

Author

Ailawadi, Narinder K. ; Alferness, R.C. ; Bergland, Glenn D. ; Thompson, Richard A.

Author_Institution

AT&T Bell Lab., Holmdel, NJ, USA

Volume

2

Issue

2

fYear

1991

fDate

5/1/1991 12:00:00 AM

Firstpage

38

Lastpage

43

Abstract

Photonic switches based on guided-wave lithium niobate technology are considered and one of the first applications, the distributed switching with centralized optics (DiSCO) experimental switching system, is described. This system interconnects commercial private branch exchanges (PBXs) through an 8*8 lithium niobate time-multiplexed switching network. It is shown that the dilated Benes architecture provides a switching network that is not limited by crosstalk. In addition, signal loss does not significantly constrain the switch size when an optical amplifier is used. It is suggested that with the use of the dilated Benes architecture and the solution of the clock-synchronization problem guided-wave photonic switching is ideally suited for high-bandwidth services, such as broadband integrated services digital network (BISDN), that are likely to be offered in the future.<>

Keywords

ISDN; broadband networks; optical switches; private telephone exchanges; time division multiplexing; BISDN; LiNbO/sub 3/; PBX; broadband integrated services digital network; broadband photonic switching; centralized optics; clock-synchronization; crosstalk; dilated Benes architecture; distributed switching; experimental switching system; guided-wave fabrics; high-bandwidth services; optical amplifier; photonic switches; private branch exchanges; switch size; time-multiplexed switching network; Fabrics; Lithium niobate; Optical crosstalk; Optical interconnections; Optical losses; Optical switches; Photonics; Semiconductor optical amplifiers; Stimulated emission; Switching systems;

fLanguage

English

Journal_Title

LTS, IEEE

Publisher

ieee

ISSN

1055-6877

Type

jour

DOI

10.1109/80.93287

Filename

93287