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Tunable photonic microwave filter with Hi-Bi chirped grating free from chromatic dispersion

Tunable photonic microwave filter with Hi-Bi chirped grating free from chromatic dispersion

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Published

A tunable, stable, photonic microwave filter, using a linearly chirped grating in a double-pass configuration, is demonstrated to have a 45 dB notch rejection. This novel configuration overcomes chromatic dispersion and optical coherence interference.

Inspec keywords: notch filters; band-pass filters; light interference; diffraction gratings; light coherence; microwave filters; microwave photonics

Other keywords: 45 dB; double pass configuration; chromatic dispersion; tunable photonic microwave filter; optical coherence interference; notch rejection; Hi-Bi chirped grating

Subjects: Filters and other networks; Microwave photonics

References

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      • W. Zhang , J.A.R. Williams , I. Bennion . Polarization synthesized optical transversal filter employing high birefringence fibre gratings. Photonics Technol. Lett. , 523 - 525
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      • Dong, X., Ng, J.H., Ngo, N.Q., Shum, P.: `CFBG-based tunable dispersion compensator with fixed central wavelength', We4, Proc. of 29th European Conf. on Optical Communication, ECOC, 2003, Rimini, Italy, p. 7–8.
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      • G.H. Smith , D. Novak , Z. Ahmed . Technique for optical SSB generation to overcome dispersion penalties in fibre-ratio systems. Electron. Lett. , 74 - 75
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      • X. Yi , C. Lu , X. Yang . Continuously tunable microwave photonic filter design using high birefringence linear chirped grating. Photonics Technol. Lett. , 754 - 755
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