Highly reconfigurable microwave photonic single-bandpass filter with complex continuous-time impulse responses.

We propose a novel structure of complex-tap microwave photonic filter (MPF) employing an incoherent broadband optical source (BOS) and a programmable optical spectrum processor. By tailoring the optical spectral amplitude and phase, arbitrary complex continuous-time impulse responses of the MPF can be constructed. Frequency responses with a single flat-top, highly chirped, or arbitrary-shape passband are demonstrated, respectively. The passband center can also be tuned in a wide range only limited by the opto-electrical devices. To the best of our knowledge, it is the first demonstration of an incoherent-BOS-based MPF which is single-bandpass, widely tunable, and highly reconfigurable with complex taps.

[1]  J. Capmany,et al.  Photonic microwave tunable single-bandpass filter based on a Mach-Zehnder interferometer , 2006, Journal of Lightwave Technology.

[2]  Andrew M. Weiner,et al.  Tunable Programmable Microwave Photonic Filters Based on an Optical Frequency Comb , 2010 .

[3]  Xiaoke Yi,et al.  Single passband microwave photonic filter using continuous-time impulse response. , 2011, Optics express.

[4]  J. Capmany,et al.  Demonstration of incoherent microwave photonic filters with all-optical complex coefficients , 2006, IEEE Photonics Technology Letters.

[5]  B. Ortega,et al.  A tutorial on microwave photonic filters , 2006, Journal of Lightwave Technology.

[6]  Yitang Dai,et al.  Nonuniformly Spaced Photonic Microwave Delay-Line Filters and Applications , 2010, IEEE Transactions on Microwave Theory and Techniques.

[7]  You Min Chang,et al.  Detailed Theoretical and Experimental Study on Single Passband, Photonic Microwave FIR Filter Using Digital Micromirror Device and Continuous-Wave Supercontinuum , 2008, Journal of Lightwave Technology.

[8]  Xiaoke Yi,et al.  Tunable and Reconfigurable Photonic Signal Processor With Programmable All-Optical Complex Coefficients , 2010, IEEE Transactions on Microwave Theory and Techniques.

[9]  J. Capmany,et al.  Multi-tap complex-coefficient incoherent microwave photonic filters based on optical single-sideband modulation and narrow band optical filtering , 2008 .

[10]  T. Darcie,et al.  Modulation-dependent limits to intensity-noise suppression in microwave-photonic links , 2005, IEEE Photonics Technology Letters.

[11]  Xiaoping Zheng,et al.  Widely tunable single-bandpass microwave photonic filter employing a non-sliced broadband optical source. , 2011, Optics express.

[12]  Dongsun Seo,et al.  Reconfigurable and Tunable Flat-Top Microwave Photonic Filters Utilizing Optical Frequency Combs , 2011, IEEE Photonics Technology Letters.