Fabrication of precision fiber-optic time delays with in situ monitoring for subpicosecond accuracy

Koo I. Kang, Kung L. Deng, Steffen D. Koehler, Ivan Glesk, Paul R. Prucnal

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We have developed a technique to produce precise fiber-optic time delays with subpicosecond accuracy and <0.1-dB loss by heating and stretching optical fiber in a fusion splicer. A fiber Mach-Zehnder interferometer allows in situ measurement of these precise delays using a simple alignment process and requiring only a weak optical signal. To demonstrate this capability, we assembled a six-stage feed-forward delay line that can be used to generate 64 optical pulses with 9.5 ± 0.8-ps pulse spacings and 4.8-dB total insertion loss.

Original languageEnglish
Pages (from-to)2533-2536
Number of pages4
JournalApplied Optics
Volume36
Issue number12
DOIs
Publication statusPublished - 20 Apr 1997

Keywords

  • feed-forward delay line
  • fiber
  • Mach-Zehnder
  • time delay

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