Tunable optical delay line based on a fibre Bragg grating

G. W. Yoffe*, J. W. Arkwright, G. E. Town, B. G. Smith

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

11 Citations (Scopus)


A tunable fibre optic delay line is demonstrated using a uniform fibre Bragg grating. A segment of the grating is heated, increasing its Bragg wavelength so that a signal propagating outside the nominal stop-band is reflected from that point. The position of the heater along the length of the grating determines the time delay encountered by the signal. For a 10cm apodised grating, a delay of up to 700ps was obtained.

Original languageEnglish
Pages (from-to)1688-1690
Number of pages3
JournalElectronics Letters
Issue number17
Publication statusPublished - 20 Aug 1998
Externally publishedYes


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