Subwavelength grating enabled on-chip ultra-compact optical true time delay line J Wang, R Ashrafi, R Adams, I Glesk, I Gasulla, J Capmany, LR Chen Scientific reports 6 (1), 30235, 2016 | 105 | 2016 |
Figure of merit for photonic differentiators R Ashrafi, J Azaña Optics Express 20 (3), 2626-2639, 2012 | 66 | 2012 |
Single-shot photonic time-intensity integration based on a time-spectrum convolution system A Malacarne, R Ashrafi, M Li, S LaRochelle, J Yao, J Azaña Optics Letters 37 (8), 1355-1357, 2012 | 61 | 2012 |
Terahertz bandwidth all-optical Hilbert transformers based on long-period gratings R Ashrafi, J Azaña Optics Letters 37 (13), 2604-2606, 2012 | 40 | 2012 |
Fiber-based photonic generation of high-frequency microwave pulses with reconfigurable linear chirp control R Ashrafi, Y Park, J Azana IEEE transactions on microwave theory and techniques 58 (11), 3312-3319, 2010 | 37 | 2010 |
Active Fabry-Perot cavity for photonic temporal integrator with ultra-long operation time window N Huang, M Li, R Ashrafi, L Wang, X Wang, J Azaña, N Zhu Optics Express 22 (3), 3105-3116, 2014 | 35 | 2014 |
Ultrafast optical arbitrary-order differentiators based on apodized long-period gratings R Ashrafi, MH Asghari, J Azana IEEE Photonics Journal 3 (3), 353-364, 2011 | 32 | 2011 |
Multi-TBaud optical coding based on superluminal space-to-time mapping in long period gratings R Ashrafi, M Li, J Azaña Optics and Photonics Journal 3 (2), 126-130, 2013 | 28 | 2013 |
Chirped microwave pulse generation using an integrated SiP Bragg grating in a Sagnac loop J Wang, R Ashrafi, M Rochette, LR Chen IEEE Photonics Technology Letters 27 (17), 1876-1879, 2015 | 26 | 2015 |
Superluminal space-to-time mapping in grating-assisted co-directional couplers R Ashrafi, M Li, S LaRochelle, J Azaña Optics Express 21 (5), 6249-6256, 2013 | 22 | 2013 |
Reconfigurable optical differential phase-shift-keying pattern recognition based on incoherent photonic processing A Malacarne, R Ashrafi, Y Park, J Azaña Optics letters 36 (21), 4290-4292, 2011 | 17 | 2011 |
Time-delay to intensity mapping based on a second-order optical integrator: application to optical arbitrary waveform generation R Ashrafi, MR Dizaji, LR Cortés, J Zhang, J Yao, J Azaña, LR Chen Optics express 23 (12), 16209-16223, 2015 | 16 | 2015 |
Coupling-Strength-Independent Long-Period Grating Designs for THz-Bandwidth Optical Differentiators R Ashrafi, M Li, J Azana IEEE Photonics Journal 5 (2), 7100311-1-7100311-1, 2013 | 16 | 2013 |
Experimental demonstration of superluminal space-to-time mapping in long period gratings R Ashrafi, M Li, N Belhadj, M Dastmalchi, S LaRochelle, J Azaña Optics Letters 38 (9), 1419-1421, 2013 | 15 | 2013 |
Ultrashort flat-top pulse generation using on-chip CMOS-compatible Mach–Zehnder interferometers M Li, P Dumais, R Ashrafi, HP Bazargani, JB Quelene, C Callender, ... IEEE Photonics Technology Letters 24 (16), 1387-1389, 2012 | 14 | 2012 |
RF-arbitrary waveform generation based on microwave photonic filtering R Adams, R Ashrafi, J Wang, MR Dizaji, LR Chen IEEE Photonics Journal 6 (5), 1-8, 2014 | 11 | 2014 |
Tsymbol/s Optical Coding Based on Long Period Gratings R Ashrafi, M Li, J Azana IEEE Photonics Technology Letters 25 (10), 910-913, 2013 | 11 | 2013 |
Femtosecond Optical Waveform Generation Based on Space-to-Time Mapping in Long Period Gratings R Ashrafi, M Li, J Azaña IEEE Photonics Conference (IPC) 2012, 104-105, 2012 | 5 | 2012 |
All‐Optical Pulse Shaping in the Sub‐Picosecond Regime Based on Fiber Grating Devices MR Fernández‐Ruiz, A Carballar, R Ashrafi, S LaRochelle, J Azaña Shaping Light in Nonlinear Optical Fibers, 257-292, 2017 | 3 | 2017 |
Silicon photonic subwavelength grating based integrated optical delay lines R Ashrafi, J Wang, I Glesk, LR Chen 2015 IEEE 12th International Conference on Group IV Photonics (GFP), 127-128, 2015 | 3 | 2015 |