Recirculating fiber-optic notch filter employing fiber gratings

W Zhang*, J A R Williams, I Bennion

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review


A novel recirculating fiber-optic notch filter is demonstrated by using two fiber gratings. The notch depth of the filter is maximized by employing a chirped grating with a triangular reflection spectrum. The free-spectral range (FSR) of the filter is changed by changing the spacing between the two used gratings. Overall, the filter offers an effective, precise and flexibly tuned real-time device for the signal processing of fiber radio-frequency systems.

Original languageEnglish
Pages (from-to)836-838
Number of pages3
JournalIEEE Photonics Technology Letters
Issue number7
Publication statusPublished - Jul 1999


Dive into the research topics of 'Recirculating fiber-optic notch filter employing fiber gratings'. Together they form a unique fingerprint.

Cite this