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Polymeric long-period waveguide gratings

  • H. C. Tsoi
  • , W. H. Wong
  • , E. Y.B. Pun*
  • *Corresponding author for this work
  • City University of Hong Kong

Research output: Contribution to journalArticlepeer-review

Abstract

Long-period waveguide grating (LPWG) was demonstrated in polymeric waveguide fabricated on SiO2-Si substrate using standard cleanroom fabrication processes: ultraviolet photolithography and reactive ion etching processes. Experimental results confirm that the relationship between the transmission peak wavelength and the grating period is linear. The LPWG exhibits a maximum attenuation of -18 dB, a minimum 3-dB bandwidth of 6 nm, and the grating length can be as short as 1 cm. The temperature characteristic dλ/dT of the LPWG was also investigated, and is found to be similar to that of long-period fiber grating.

Original languageEnglish
Pages (from-to)721-723
Number of pages3
JournalIEEE Photonics Technology Letters
Volume15
Issue number5
DOIs
StatePublished - May 2003
Externally publishedYes

Keywords

  • Long-period gratings (LPGs)
  • Optical waveguides
  • Polymeric waveguides
  • Waveguide gratings

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