Scalable UWB photonic generator based on the combination of doublet pulses

We propose and experimentally demonstrate a scalable and reconfigurable optical scheme to generate high order UWB pulses. Firstly, various ultra wideband doublets are created through a process of phase-to-intensity conversion by means of a phase modulation and a dispersive media. In a second stage, doublets are combined in an optical processing unit that allows the reconfiguration of UWB high order pulses. Experimental results both in time and frequency domains are presented showing good performance related to the fractional bandwidth and spectral efficiency parameters.The research leading to these results has been funded by the national project TEC2010-21303-C04-02 and TEC2011-26642 funded by the Ministerio de Economia y Competitividad and the projects FEDER UPVOV08-3E-008 and UPVOV10-3E-492. Also, the authors wish to acknowledge the financial support given by the Generalitat Valenciana under the Research Excellency Award Program GVA PROMETEO 2013/012 Next Generation Microwave Photonic technologies.Moreno, V.; Rius Mercado, M.; Mora Almerich, J.; Muriel, MA.; Capmany Francoy, J. (2014). Scalable UWB photonic generator based on the combination of doublet pulses. Optics Express. 22(13):15346-15351. https://doi.org/10.1364/OE.22.01534615346153512213Yao, J. (2009). Photonics for ultrawideband communications. IEEE Microwave Magazine, 10(4), 82-95. doi:10.1109/mmm.2009.932287Yao, J. (2010). Arbitrary waveform generation. Nature Photonics, 4(2), 79-80. doi:10.1038/nphoton.2009.276Capmany, J., & Novak, D. (2007). Microwave photonics combines two worlds. Nature Photonics, 1(6), 319-330. doi:10.1038/nphoton.2007.89Weiner, A. M. (2000). Femtosecond pulse shaping using spatial light modulators. Review of Scientific Instruments, 71(5), 1929-1960. doi:10.1063/1.1150614Bolea, M., Mora, J., Ortega, B., & Capmany, J. (2013). High-order UWB pulses scheme to generate multilevel modulation formats based on incoherent optical sources. Optics Express, 21(23), 28914. doi:10.1364/oe.21.028914Moreno, V., Rius, M., Mora, J., Muriel, M. A., & Capmany, J. (2013). Integrable high order UWB pulse photonic generator based on cross phase modulation in a SOA-MZI. Optics Express, 21(19), 22911. doi:10.1364/oe.21.022911Fei Zeng, & Jianping Yao. (2006). An approach to ultrawideband pulse generation and distribution over optical fiber. IEEE Photonics Technology Letters, 18(7), 823-825. doi:10.1109/lpt.2006.871844Zeng, F., & Yao, J. (2006). Ultrawideband Impulse Radio Signal Generation Using a High-Speed Electrooptic Phase Modulator and a Fiber-Bragg-Grating-Based Frequency Discriminator. IEEE Photonics Technology Letters, 18(19), 2062-2064. doi:10.1109/lpt.2006.883310Zhou, E., Xu, X., Lui, K.-S., & Wong, K. K.-Y. (2010). A Power-Efficient Ultra-Wideband Pulse Generator Based on Multiple PM-IM Conversions. IEEE Photonics Technology Letters, 22(14), 1063-1065. doi:10.1109/lpt.2010.2050469Abraha, S. T., Okonkwo, C. M., Tangdiongga, E., & Koonen, A. M. J. (2011). Power-efficient impulse radio ultrawideband pulse generator based on the linear sum of modified doublet pulses. Optics Letters, 36(12), 2363. doi:10.1364/ol.36.002363Pengxiao Li, Hongwei Chen, Minghua Chen, & Shizhong Xie. (2012). Gigabit/s Photonic Generation, Modulation, and Transmission for a Reconfigurable Impulse Radio UWB Over Fiber System. IEEE Photonics Journal, 4(3), 805-816. doi:10.1109/jphot.2012.2198804Abraha, S. T., Okonkwo, C., Yang, H., Visani, D., Shi, Y., Jung, H.-D., … Koonen, T. (2011). Performance Evaluation of IR-UWB in Short-Range Fiber Communication Using Linear Combination of Monocycles. Journal of Lightwave Technology, 29(8), 1143-1151. doi:10.1109/jlt.2011.2120595Li, P., Chen, H., Wang, X., Yu, H., Chen, M., & Xie, S. (2013). Photonic Generation and Transmission of 2-Gbit/s Power-Efficient IR-UWB Signals Employing an Electro-Optic Phase Modulator. IEEE Photonics Technology Letters, 25(2), 144-146. doi:10.1109/lpt.2012.2230158Marpaung, D., Roeloffzen, C., Heideman, R., Leinse, A., Sales, S., & Capmany, J. (2013). Integrated microwave photonics. Laser & Photonics Reviews, 7(4), 506-538. doi:10.1002/lpor.201200032Sales, S., Xue, W., Mork, J., & Gasulla, I. (2010). Slow and Fast Light Effects and Their Applications to Microwave Photonics Using Semiconductor Optical Amplifiers. IEEE Transactions on Microwave Theory and Techniques, 58(11), 3022-3038. doi:10.1109/tmtt.2010.207551