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Tunable microwave photonic filter based on chirped fiber gratings working with a single optical carrier at constant wavelength

✍ Scribed by S. Torres; P. Pérez-Millán; J.L. Cruz; M.V. Andrés


Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
183 KB
Volume
277
Category
Article
ISSN
0030-4018

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✦ Synopsis


This paper presents a tunable transversal filter working with a single optical carrier at constant wavelength. The filter consists of a set of chirped gratings whose time delay is tuned with respect to the emission wavelength of a fiber laser by a piezoelectric actuator; extra lengths of fiber are inserted in the filter arms in order to avoid interferences between signals reflected in different gratings. Two and three taps filters are experimentally demonstrated, the filters transfer function is electronically tuned within the free spectral range.


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Chromatic dispersion effect on microwave
✍ G. Ning; P. Shum; Junqiang Zhou 📂 Article 📅 2007 🏛 John Wiley and Sons 🌐 English ⚖ 158 KB

## Abstract Chromatic dispersion effect on a bandpass microwave photonic filter is presented using a tunable linearly chirped fiber Bragg grating (LCFBG). The 3‐dB bandwidth of the LCFBG is shifted nonlinearly with fixed centre wavelength to change its chromatic dispersion value. The bandpass notch