Phase-shifted bandpass filter fabrication through CO2 laser irradiation

Li Xia, Ping Shum, Chao Lu

Research output: Journal article publicationJournal articleAcademic researchpeer-review

34 Citations (Scopus)


We report what is believed to be the first example of phase shifted bandpass filter written on the fiber Bragg grating (FBG) through CO2 laser irradiation. The filter is realized by fiber residual stress relaxation effect. The induced phase shifts in different position can produce multiple narrow passbands within the stopband of the FBG. The produced filter is compact, stable, cost effective, and its bandpass profile is easy to control.
Original languageEnglish
Pages (from-to)5878-5882
Number of pages5
JournalOptics Express
Issue number15
Publication statusPublished - 25 Jul 2005
Externally publishedYes

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics


Dive into the research topics of 'Phase-shifted bandpass filter fabrication through CO2 laser irradiation'. Together they form a unique fingerprint.

Cite this