Single and multi-passband broadband Moiré filters from dual exposure of uniform-period and chirped phase masks

Kate Sugden, Lorna A. Everall, John A.R. Williams, Ian Bennion

Research output: Contribution to journalConference article

1 Citation (Scopus)

Abstract

In-fiber chirped Moiré resonators are excellent filters in terms of fiber compatibility, and can potentially provide wide stopbands, narrow passbands and high rejection levels. This paper describes the realization of chirped Moire in- fiber filters written using phase mask techniques. The filters described here were fabricated both from the dual exposure of a uniform-pitch phase mask followed by a third refractive index profiling scan and from the dual exposure of chirped phase masks. These techniques produce filters that replicate the broad bandwidths associated with holographic techniques and have the advantage of the good reproducibility associated with the use of phase masks.

Original languageEnglish
Pages (from-to)29-34
Number of pages6
JournalProceedings of SPIE - The International Society for Optical Engineering
Volume2998
Early online date23 Jan 1997
DOIs
Publication statusPublished - 1 Dec 1997
Externally publishedYes
EventPhotosensitive Optical Materials and Devices - San Jose, CA, United States
Duration: 12 Feb 199712 Feb 1997

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Keywords

  • Bandpass filter
  • Fibre Bragg grating
  • Moiré grating
  • Phase mask

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering

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