A new technique is reported for producing variable chirping by a uniform optical fibre Bragg grating. The chirp is obtained by applying a strain gradient through the use of a tapered-thickness piezoelectric ceramic. The grating bandwidth has been increased from ~0.15 to ~0.34 nm with a ratio of ~0.415 pm/V.
Inspec keywords: optical fibre communication; diffraction gratings; chirp modulation; optical fibre dispersion
Other keywords:
Subjects: Optical fibre networks; Optical communication devices, equipment and systems; Optical propagation, dispersion and attenuation in fibres; Fibre optics
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