Misalignment tolerance analysis of free-space optical interconnects via statistical methods

Nur S.F. Ozkan, W. Lee Hendrick, Philippe J. Marchand, Sadik C. Esener

Research output: Contribution to journalArticlepeer-review

18 Scopus citations


System-level packaging is one of the critical issues that need to be addressed for free space optical interconnections (FSOI) to become useful in desktop systems. The performance of FSOI, e.g., in terms of system bit-error rate, is greatly affected by misalignments in the optical system. Therefore tolerancing, i.e., the ability to analyze and predict the effects of misalignments in the system, is of prime importance to system designers. We introduce an approach in which we study the effects of optical misalignments and other tolerance factors using statistical methods. We use Monte Carlo simulations, design of the experiments, and regression techniques to fit a polynomial equation that expresses the relationship between the system performance and the tolerance factors. This prediction model can be used for design, cost optimization, and quality control purposes. In addition, we perform a sensitivity analysis to determine those tolerance variables that have the greatest effect on system performance.

Original languageEnglish (US)
Pages (from-to)2686-2694
Number of pages9
JournalApplied Optics
Issue number14
StatePublished - Jan 1 2002
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics
  • Engineering (miscellaneous)
  • Electrical and Electronic Engineering


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