Key technologies on microwave photonic filter

Abstract

Microwave photonic filter (MPF) as one of the key devices in the radio-on-fiber (ROF) system has attracted much interest recently. Some key technologies of MPF including the coherence, quality factor (Q) and reconfigurability are introduced. The difference between the incoherent and coherent MPF (ICMPF and CMPF) is given, and the methods to realize an ICMPF are also introduced. Higher Q factor MPF can be developed with more taps, and it is proved by simulation. Then the methods of finite and infinite impulse response MPF (FIRMPF and IIRMPF) are both given. At last, the reconfigurability is verified by four kinds of window functions.

Keywords

microwave photonic filter (MPF) / radio-on-fiber (ROF) / coherent / Q value / reconfigurability

References

[1] Capmany J, Ortega B, Pastor D. A tutorial on microwave photonic filters. Journal of Lightwave Technology, 2006, 24(1): 201–229

[2] Hunter D B, Minasian R A, Krug P A. Tunable optical transversal filter based on chirped gratings. Electronics Letters, 1995, 31(25): 2205–2207

[3] Vidal B, Polo V, Corral J L, Marti J. Harmonic suppressed photonic microwave filter. Journal of Lightwave Technology, 2003, 21(12): 3150–3154

[4] Feng X, Lu C, Tam H Y, Wai P K A. Reconfigurable microwave photonic filter using multiwavelength erbium-doped fiber laser. IEEE Photonics Technology Letters, 2007, 19(17): 1334–1336

[5] Mora J, Ortega B, Capmany J, Cruz J, Andres M, Pastor D, Sales S. Automatic tunable and reconfigurable fiberoptic microwave filters based on a broadband optical source sliced by uniform fiber Bragg gratings. Optics Express, 2002, 10(22): 1291–1298

[6] Pastor D, Ortega B, Capmany J, Sales S, Martinez A, Muñoz P. Optical microwave filter based on spectral slicing by use of arrayed waveguide gratings. Optics Letters, 2003, 28(19): 1802–1804

[7] Polo V, Vidal B, Corral J L, Marti J. Novel tunable photonic microwave filter based on laser arrays and N/spl times/N AWG-based delay lines. IEEE Photonics Technology Letters, 2003, 15(4): 584–586

[8] Pastor D, Capmany J. Fibre optic tunable transversal filter using laser array and linearly chirped fibre grating. Electronics Letters, 1998, 34(17): 1684–1685

[9] Pastor D, Capmany J, Ortega B. New fiber-optic microwave filters with complete tunability and reconfiguration properties using a linearly chirped fiber grating feeded by a laser array. In: Proceedings of Optical Fiber Communication Conference 1999 and the International Conference on Integrated Optics and Optical Fiber Communication. 1999, 4: 165–167

[10] Capmany J, Pastor D, Ortega B. Efficient sidelobe suppression by source power apodisation in fibre optic microwave filters composed of linearly chirped fibre grating by laser array. Electronics Letters, 1999, 35(8): 640–642

[11] Capmany J, Pastor D, Ortega B. Experimental demonstration of tunability and transfer function reconfiguration in fibre-optic microwave filters composed of linearly chirped fibre grating fed by laser array. Electronics Letters, 1998, 34(23): 2262–2264

[12] Zeng F, Wang J, Yao J. All-optical microwave bandpass filter with negative coefficients based on a phase modulator and linearly chirped fiber Bragg gratings. Optics Letters, 2005, 30(17): 2203–2205

[13] Capmany J, Pastor D, Martinez A, Ortega B, Sales S. Microwave photonic filters with negative coefficients based on phase inversion in an electro-optic modulator. Optics Letters, 2003, 28(16): 1415–1417

[14] Loayssa A, Capmany J. Incoherent microwave photonic filters with complex coefficients using stimulated Brillouin scattering. In: Proceedings of Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference. 2006, OFB2

[15] Sagnes M, Loayssa A, Capmany J, Benito D, Sales S, Garcia-Olcina R. Tunable complex-coefficient incoherent microwave photonic filters based on optical single-sideband modulation and narrow-band optical filtering. In: Proceedings of Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference. 2007, OWU5

[16] Ou H, Zhu K, Hu Y, He S. Tunable and reconfigurable multi-tap microwave photonic filter with negative coefficients based on a single laser diode. In: Proceedings of Asia Optical Fiber Communication and Optoelectronic Exposition and Conference. 2008, SaJ4

[17] Zhu K, Ou H, Hu Y, Fu H. Tunable single-bandpass microwave photonic filters with high Q factor or flat-top shape based on cascaded optical structures. In: Proceedings of Asia Optical Fiber Communication and Optoelectronic Exposition and Conference. 2008, SaJ3

[18] Hunter D B, Minasian R A. High Q microwave optical filters using an active fiber grating pair structure. In: Proceedings of Conference on Optical Fiber Communication. 1997, 340–341.

[19] Capmany J, Mora J, Ortega B, Pastor D. High-Q microwave photonic filter with a tuned modulator. Optics Letters, 2005, 30(17): 2299–2301

[20] Ortega B, Mora J, Capmany J, Pastor D, Garcia-Olcina R, Sales S. Highly selective microwave photonic filters based on new FBGs-EDF recirculating cavities and tuned modulators. In: Proceedings of International Topical Meeting on Microwave Photonics. 2005, 209–212

Acknowledgements

This work was jointly supported by the National Natural Science Foundation of China (Grant Nos. 60771008 and 60837002), the Beijing Natural Science Foundation (No. 4082024), the Foundation for the Returning Scholars (No. [2008]890), and the PhD Programs Foundation of Ministry of Education of China (No. 200800040002).

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2014 Higher Education Press and Springer-Verlag Berlin Heidelberg