Listar por autor "Pérez-Galacho, Diego"
Mostrando ítems 1-19 de 19
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Add/Drop Mode-Division Multiplexer Based on a Mach–Zehnder Interferometer and Periodic Waveguides.
Pérez-Galacho, Diego
; Marris-Morini, Delphine; Ortega-Moñux, Alejandro; Wanguemert-Pérez, Juan Gonzalo; Vivien, Laurent (IEEE, 2015)
Mode-division multiplexing (MDM) is currently under study due to its potential to further increase data rates in optical communication circuits. In this paper, we propose an add/drop MDM for the first- and second-order ... -
Engineering the optical properties of silicon using sub-wavelength structures
Halir, Robert; Ortega-Moñux, Alejandro; Maese-Novo, Alejandro; Pérez-Galacho, Diego; Zavargo-Peche, Luis; Molina-Fernández, Íñigo; Wanguemert-Pérez, Juan Gonzalo; Cheben, Pavel; Schmid, Jens H.; Xu, Dan-Xia; Janz, Siegfried; Fedeli, Jean-Marc[et al.] (IEEE Photonics Society, 2013)
In most integrated optics platforms, including silicon-on-insulator, only minor modifications in refractive index are possible. The geometry of the waveguiding structure is thus the only degree of freedom for the design ... -
Frequency-tuning dual-comb spectroscopy using silicon Mach-Zehnder modulators.
Deniel, Lucas; Weckenmann, Erwan; Pérez-Galacho, Diego; Alonso-Ramos, Carlos; Boeuf, Frederic; Vivien, Laurent; Marris-Morini, Delphine[et al.] (Optica, 2020)
Dual-comb spectroscopy using a silicon Mach-Zehnder modulator is reported for the first time. First, the properties of frequency combs generated by silicon modulators are assessed in terms of tunability, coherence, and ... -
Integrated Microwave Photonics Coherent Processor for Massive-MIMO Systems in Wireless Communications
Martínez-Carrasco Romero, Pablo; Rausell-Campo, José Roberto; Pérez-Galacho, Diego; Li, Xu; Qing, Ting; Wang, Tiangxiang; Pérez-López, Daniel[et al.] (2023-04-05)
Massive-MIMO systems can achieve high capacities and data rates by increasing the number of operational antennas in the base station. As more antenna elements are introduced, the complexity of the signal processing operations ... -
Integrated Polarization Beam Splitter for 100/400 GE Polarization Multiplexed Coherent Optical Communications
Pérez-Galacho, Diego; Zhang, Ruiyong; Ortega-Moñux, Alejandro; Halir, Robert; Alonso-Ramos, Carlos A.; Runge, Patrick; Janiak, Klemens; Zhou, Gan; Bach, Heinz-Gunter; Steffan, Andreas G.; Molina-Fernández, Íñigo[et al.] (IEEE, 2013-12-04)
Monolithically integrated polarization management is a key objective for the next generation of high speed optical co- herent receivers, and will enable transmission rates up to 400 Gbps. In this work we present a ... -
Integrated polarization beam splitter with relaxed fabrication tolerances
Pérez-Galacho, Diego; Halir, Robert; Ortega-Moñux, Alejandro; Alonso-Ramos, Carlos A.; Zhang, R.; Runge, Patrick; Janiak, Klemens; Bach, Heinz-Gunter; Steffan, Andreas G.; Molina-Fernández, Íñigo[et al.] (Optical Publishing Group, 2013-06-06)
Polarization handling is a key requirement for the next generation of photonic integrated circuits (PICs). Integrated polarization beam splitters (PBS) are central elements for polarization management, but their use in ... -
Linearization of a Dual-Parallel Mach-Zehnder Modulator Using Optical Carrier Band Processing
Torrijos-Morán, Luis; Catalá-Lahoz, Cristina; Pérez-López, Daniel; Xu, Li; Tianxiang, Wang; Pérez-Galacho, Diego[et al.] (IEEE, 2023-05-15)
The linearization of a microwave photonic link based on a dual-parallel Mach-Zehnder modulator is theoretically de- scribed and experimentally demonstrated. Up to four different radio frequency tones are considered in the ... -
Low voltage 25Gbps silicon Mach-Zehnder modulator in the O-band
Pérez-Galacho, Diego; Baudot, Charles; Hirtzlin, Tifenn; Messaoudène, Sonia; Vulliet, Nathalie; Crozat, Paul; Boeuf, Frederic; Vivien, Laurent; Marris-Morini, Delphine[et al.] (Optical Publishing Group, 2017-05-04)
In this work, a 25 Gb ps silicon push-pull Mach-Zehnder modulator operating in the O-Band (1260 nm - 1360 nm) of optical communications and fabricated on a 300 mm platform is presented. The measured modulation efficiency ... -
Modeling amplified arbitrary filtered heterodyne microwave photonic links
Sánchez, Erica; Pérez-López, Daniel; Pérez-Galacho, Diego; Huy-Ho, Tan; Wessel, David; Capmany, José[et al.] (2022-02-14)
We report an end-to-end analytic model for the computation of the figures of nerit (FOMs) of arbitrarily filtered and amplified heterodyne coherent microwave photonics (MWP) links. It is useful for evaluating the performance ... -
Optical pump-rejection filter based on silicon sub-wavelength engineered photonic structures
Pérez-Galacho, Diego; Alonso-Ramos, Carlos; Mazeas, Florent; Le Roux, Xavier; Oser, Dorian; Zhang, Weiwei; Marris-Morini, Delphine; Labonté, Laurent; Tanzilli, Sébastien; Cassan, Éric; Vivien, Laurent[et al.] (Optical Publishing Group, 2017-04-04)
The high index contrast of the silicon-on-insulator (SOI) platform allows the realization of ultra-compact photonic circuits. However, this high contrast hinders the implementation of narrow-band Bragg filters. These ... -
Polarization management for coherent optical receivers
Halir, Robert; Ortega-Moñux, Alejandro; Pérez-Galacho, Diego; Alonso-Ramos, C.; Ruiyong, Zhang; Reyes-Iglesias, Pedro José; Romero-García, Sebastián; Godoy-Rubio, Rafael; Wanguemert-Pérez, Juan Gonzalo; Molina-Fernández, Íñigo; Runge, Patrick[et al.] (2014-06-03)
The constant growth of bandwidth requirements in optical communication networks has prompted the evolution from conventional on-off-keying (OOK) transmission techniques to coherent, polarization multiplexed schemes. The ... -
QPSK modulation in the O-band using a single dual-drive Mach-Zehnder silicon modulator
Pérez-Galacho, Diego; Bramerie, Laurent; Baudot, Charles; Chaibi, Mohamed; Messaoudène, Sonia; Vulliet, Nathalie; Vivien, Laurent; Peucheret, Christophe; Marris-Morini, Delphine[et al.] (IEEE, 2018-09-15)
Keeping up with bandwidth requirements in next generation short- and long-reach optical communication systems will require migrating from simple modulation formats such as on-off keying (OOK) to more advanced formats such ... -
Re-inventing Multimode Interference Couplers Using Subwavelength Gratings
Ortega-Moñux, Alejandro; Halir, Robert; Maese-Novo, Alejandro; Alonso-Ramos, C.; Zavargo-Peche, Luis; Pérez-Galacho, Diego; Molina-Fernández, Íñigo; Wanguemert-Pérez, Juan Gonzalo; Cheben, Pavel; Schmid, Jens H.; Lapointe, J.; Xu, Dan-Xia; Janz, Siegfried[et al.] (European Physical Society, IEEE, The Optical Society, 2013)
We use the concept of subwavelength grating (SWG) refractive-index-engineering to propose and experimentally demonstrate a reduced size, slotted 2x2 MMI coupler. We also present an ultra-broadband 2x2 MMI coupler which ... -
Silicon subwavelength modal Bragg grating filters with narrow bandwidth and high optical rejection
Oser, Dorian; Pérez-Galacho, Diego; Le Roux, Xavier; Tanzilli, Sébastien; Vivien, Laurent; Labonté, Laurent; Cassan, Éric; Alonso-Ramos, Carlos[et al.] (Optical Publishing Group, 2020-10-13)
Waveguide Bragg grating filters with narrow bandwidth and high optical rejection are key func- tions for several advanced silicon photonics circuits. Here, we propose and demonstrate a new Bragg grating geometry that ... -
Simplified modeling and optimization of silicon modulators based on free-carrier plasma dispersion effect
Pérez-Galacho, Diego; Marris-Morini, Delphine; Stoffer, R.; Cassan, E.; Baudot, C.; Korthorst, T.; Boeuf, F.; Vivien, L.[et al.] (Optical Publishing Group, 2016-11-04)
n this paper, a simplified model of silicon phase modulators is presented that enables favorable accuracy together with a substantial reduction in computational effort and without the requirement of semiconductor TCAD ... -
Subwavelength engineering and asymmetry: two efficient tools for sub-nanometer-bandwidth silicon Bragg filters
Oser, Dorian; Pérez-Galacho, Diego; Alonso-Ramos, Carlos; Le Roux, Xavier; Tanzilli, Sébastien; Vivien, Laurent; Labonté, Laurent; Cassan, Éric[et al.] (Optical Publishing Group, 2018-07-02)
Bragg filters stand as a key building blocks of the silicon- on-insulator (SOI) photonics platform, allowing the implementation of advanced on-chip signal manipulation. However, achieving narrowband Bragg filters with ... -
Subwavelength gratings for sensing and polarization management
Wanguemert-Pérez, Juan Gonzalo; Cheben, Pavel; Ortega-Moñux, Alejandro; Pérez-Galacho, Diego; Alonso-Ramos, C.; Halir, Robert; Molina-Fernández, Íñigo; Xu, Dan-Xia; Schmid, Jens H.[et al.] (2014-05-12)
Sub-wavelength grating (SWGs) structures are becoming important building blocks in planar waveguide photonic devices [1]. SWG structures have been successfully applied in the design of a range of devices with remarkable ... -
Subwavelength metamaterial structures for silicon photonics
Wanguemert-Pérez, Juan Gonzalo; Sánchez-Postigo, Alejandro; Luque-González, José Manuel; Sarmiento-Merenguel, Jose Darío; Halir, Robert; Ortega-Moñux, Alejandro; Molina-Fernández, Íñigo; Soler-Penades, Jordi; Nedeljkovic, Milos; Mashanovich, Goran Z.; Alonso-Ramos, C.; Pérez-Galacho, Diego; González Andrade, David; V. Velasco, Aitor[et al.] (Photonics North, 2017)
Sub-wavelength periodic metamaterial structures are enabling the design of silicon photonic devices with unprecedented performance in the near infrared band. However, for applications in the promising mid-infrared band it ...