Microwave photonics: ultrafast optical signal processing
We developed a variety of new optical signal processing devices, including time lens, time domain wave-plates and time domain pinholes, etc. Their applications include (1) optical pulse compression, such as picosecond fiber lasers; (2) optical signal compression and broadening, such as 10 GHz and 40 GHz signal conversion. In addition, the current ultrafast photonic analog signal processing often requires the use of femtosecond/picosecond lasers as the light source. Femtosecond/picosecond lasers have a large bandwidth, which can improve system performance, but the cost is high, which limits the application. Our research shows that incoherent lasers can be used to replace femtosecond/picosecond lasers. Incoherent lasers also have large bandwidth and low cost, which can promote a wider application of the system.
Related publications：
1. B. Li and J. Azaña, “Theory of Incoherent-Light Temporal Imaging Systems Based on a Temporal Pinhole,” Journal of Lightwave Technology, vol. 34, pp. 2758-2773, 2016.
2. B. Li, S. Lou, and J. Azaña, “High-contrast linear optical pulse compression using a temporal hologram,” Optics Express, vol. 23, pp. 6833-6845, 2015.
3. B. Li and J. Azaña, “Temporal Imaging of Incoherent-Light Intensity Waveforms Based on a Gated Time-Lens System,” IEEE Photonics Journal, vol. 7, pp. 1-8, 2015.
4. B. Li, S. Lou, and J. Azaña, “Incoherent-light temporal imaging based on a temporal pinspeck,” IEEE Photonics Technology Letters, vol. 27, pp. 348-351, 2015.
5. B. Li, S. Lou, and J. Azaña, “Implementation of the photonic time-stretch concept using an incoherent pulsed light source,” Appl. Opt., 54(10), pp. 2757-2761, 2015.
6. B. Li, S. Lou, and J. Azaña, “Novel Temporal Zone Plate Designs with Improved Energy Efficiency and Noise Performance,” Journal of Lightwave Technology, 32(24), pp. 4201-4207, 2014.
7. B. Li and J. Azaña, “Incoherent-light temporal imaging of intensity waveforms,” Optics & Photonics News, Year in optics, p. 33, 2014.
8. B. Li and J. Azaña, “Incoherent-light temporal stretching of high-speed intensity waveforms,” Optics Letters, 39(14), pp. 4243-4246, 2014.
9. S. Chang, S. Lou, B. Li, and B. Han, “Parametric modulation to extend the aperture of the time lens based on electro-optics modulation”, Acta. Opt. Sin., pp. 65-70, 2014.
10. B. Li, M. Li, S. Lou, and J. Azaña, “Linear optical pulse compression based on temporal zone plates,” Optics Express, 21(14), pp. 16814-16830, 2013.
11. B. Li and S. Lou, “Elimination of Aberrations Due to High-Order Terms in Systems Based on Linear Time Lenses,” Journal of Lightwave Technology, 31(13), pp. 2200-2206, 2013.
12. B. Li and S. Lou, “Time-frequency conversion, temporal filtering and temporal imaging using graded-index time-lenses,” Optics Letters, 37(19), pp. 3981-3983, 2012.
13. B. Li, S. Lou, and Z. Tan, “Two kinds of optical pulse compression approaches based on cross phase modulation,” Acta Physica Sinica, 61(19), 194203, 2012.
14. B. Li, Z. Tan, and X. Zhang, “Simulation and analysis of time lens using cross phase modulation and four-wave mixing,” Acta Physica Sinica, 61(1), 014203, 2012.
15. X. Zhang, Z. Tan, B. Li, and X. Sheng, “An optical-to-analog conversion technique based on temporal magnification,” Optical Fiber & Electric Cable and Their Applications, 6, 26-29, 2011.
16. B. Li, Z. Tan, and X. Zhang, “Experiment and simulation of time lens using electro-optic phase modulation and cross phase modulation,” Acta Physica Sinica, 60(8), 084204, 2011.
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