Analysis of temperature dependence for a ratiometric wavelength measurement system using SMS fiber structure based edge filters

A. M. Hatta*, Y. Semenova, G. Rajan, P. Wang, J. Zheng, G. Farrell

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

9 Citations (Scopus)

Abstract

Temperature dependence of an edge filter based on singlemode-multimode-singlemode (SMS) fiber structure is investigated numerically and experimentally. The experimental results and numerical results are in good agreement within an operational temperature range from 10 °C to 40 °C. It is found that the thermo-optic coefficient (TOC) has a more significant effect on the temperature dependence of an SMS edge filter compared to the thermal expansion coefficient (TEC). In the ratiometric wavelength measurement using two SMS edge filters, a small temperature variation can induce the ratio variation and in turn the wavelength measurement error. It is found the SMS edge filter's response to both wavelength and temperature is linear. It is proposed that self-monitoring of temperature can be carried out using an updated ratiometric scheme. Self-monitoring of the temperature reduces temperature induced wavelength error to ±0.7 pm at 1545 nm, regardless of the ambient temperature variation.

Original languageEnglish
Pages (from-to)1291-1295
Number of pages5
JournalOptics Communications
Volume283
Issue number7
DOIs
Publication statusPublished - 1 Apr 2010
Externally publishedYes

Keywords

  • Edge filter
  • Multimode fiber
  • Temperature dependence

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