Analysis of crosstalk penalty in dense optical chip interconnects using single-mode waveguides

Author

Li, Chung-Sheng ; Olsen, C. Michael ; Messerschmitt, David G.

Author_Institution

IBM Thomas J. Watson Res. Center, Yorktown Heights, NY, USA

Volume

9

Issue

12

fYear

1991

fDate

12/1/1991 12:00:00 AM

Firstpage

1693

Lastpage

1701

Abstract

A crosstalk model to analyze the impact of crosstalk on the system parameters is developed. The following light source scenarios are investigated: (1) weakly coherent and uncorrelated, (2) weakly coherent and correlated, and (3) strongly coherent and correlated. Using a 1-dB power penalty criterion at a bit-error-rate of 10^-15, it is shown that the crosstalk between neighboring waveguides must be smaller than -12 dB if the wavelength spacing or the linewidth of the sources is much larger than the receiver bandwidth. In the worst case, where the channels share the same monochromatic light source, the maximum crosstalk level declines to -25 dB. In a practical realization, where the sampling level is not optimized, the allowable crosstalk is reduced to -32 dB

Keywords

crosstalk; integrated optoelectronics; light coherence; light sources; optical correlation; optical interconnections; optical waveguide theory; bit-error-rate; crosstalk model; crosstalk penalty; dense optical chip interconnects; light coherence; light correlation; light source; monochromatic light source; power penalty; receiver bandwidth; sampling level; single-mode waveguides; source linewidth; wavelength spacing; Bandwidth; Laser theory; Light sources; Optical arrays; Optical crosstalk; Optical interconnections; Optical receivers; Optical waveguides; Planar waveguides; Sampling methods;

fLanguage

English

Journal_Title

Lightwave Technology, Journal of

Publisher

ieee

ISSN

0733-8724

Type

jour

DOI

10.1109/50.108714

Filename

108714