Optimization of distributed resistive metal film heaters in thermally tunable dispersion compensators for high-bit-rate communication systems

Paul Steinvurzel*, Robert A. MacHarrie, Kirk W. Baldwin, Charles W. Van Hise, Benjamin J. Eggleton, John A. Rogers

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

Tunable dispersion compensators are an essential component for optical networks operating at 40 Gbits/s and beyond. One fiber-based tunable dispersion compensator that has proved to be effective consists of a chirped fiber Bragg grating tuned by a thin-film distributed resistive heating element. We describe several modifications to the heater design that minimize temperature-induced higher-order dispersion, eliminate the need for a second stabilization heater when the device is operated at constant ambient temperature, and significantly lower its maximum operating temperature. We demonstrate a tunable dispersion compensator with a single thin-film heater that provides over 500 ps/nm of tunable dispersion over a fixed 100-GHz bandwidth with a maximum operating temperature of less than 125°C above ambient.

Original languageEnglish (US)
Pages (from-to)2782-2791
Number of pages10
JournalApplied optics
Volume44
Issue number14
DOIs
StatePublished - May 10 2005

ASJC Scopus subject areas

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

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