Ratiometric wavelength monitor based on "X-type spectral response" using two edge filters

Agus Muhamad Hatta, Ginu Rajan, Gerald Farrell, Yuliya Semenova

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

9 Citations (Scopus)


The performance of an all-fiber ratiometric wavelength measurement system is compared for the case of two edge filters and the case of one edge filter. The two fiber edge filters are used with overlapping and opposite slope spectral responses, a so called "X-type spectral response", each based on singlemode-multimode-singlemode (SMS) fiber structures. Noise and polarization dependent loss (PDL) are the two parameters that determine the resolution and an accuracy of the system. It is demonstrated that the use of two SMS edge filters for a ratiometric wavelength measurement system can increase the resolution and the accuracy when compared with a system using only one edge filter.

Original languageEnglish
Title of host publicationOptical Sensors 2009
Publication statusPublished - 2009
Externally publishedYes
EventOptical Sensors 2009 - Prague, Czech Republic
Duration: 20 Apr 200922 Apr 2009

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X


ConferenceOptical Sensors 2009
Country/TerritoryCzech Republic


  • Edge filter
  • Fiber optics
  • Multimode interference
  • Wavelength monitor


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