Mikael Guegan

Mikael Guegan
École Nationale d'Ingénieurs de Brest | ENIB · Electronics Engineering, Labsticc-MOM-ENIB

PhD

About

61
Publications
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334
Citations

Publications

Publications (61)
Article
We present an improved version of a Power-over-Fiber (PoF) extension for remote sensor control in the context of seafloor observatories. Both data and high power supply are transmitted through a unique 10 kmlong single-mode optical fiber. Experimental results are compared to those obtained with a previous version of the extension.Wecharacterize the...
Article
A power-over-fiber (PoF) and communication system for extending a cabled seafloor observatory is demonstrated in this contribution. The system allows the cabled seafloor observatory to be linked, through a single optical fiber, to a sensor node located 8 km away. The PoF system is based on an optical architecture in which power and data propagate s...
Poster
Full-text available
In previous papers, the authors proposed a flexible solution to extend a fixed, cabled seabed observatory with a single mode optical fiber transporting both energy and data, over several kilometers. The main topic of this paper is the optimization of the physical parameters used in our numerical model of optical propagation, in order to obtain the...
Article
The modeling of the simultaneous propagation of high-power and bidirectional data along the same 10-km-long single-mode fiber is discussed. The intense signal carries the energy needed to supply an instrument in the context of cabled submarine observatories. The considered mathematical description takes into account the fiber's nonlinear behavior i...
Conference Paper
Full-text available
A Power-over-fiber extension for an existing fixed seabed observatory is presented in this contribution. The system is characterized by its versatility in respect to the sensors with which it can operate. Turbidimetry tests and results are presented.
Article
We present the principle of a broadband optical transmission link based on the appropriate combination of the spectral profiles of broadband SOA gain, Raman amplification and transmission fiber losses. We show that, thanks to this principle, a bandwidth as wide as 89 nm (defined at −1 dB) over 75.5 km can be obtained. This bandwidth remains better...
Article
A semi-phenomenological wideband model is proposed for both the material gain and the gain coefficient of a multi-quantum well semiconductor optical amplifier (MQW-SOA). This analytical model is integrated in a SOA-dedicated simulation tool and validated experimentally over a wide range of bias currents, input powers and wavelengths. We demonstrate...
Conference Paper
Full-text available
RESUME Ce papier se situe dans le contexte du développement des observatoires câblés de fond de mer. Nous proposons une solution flexible pour étendre ces observatoires avec une seule fibre optique transportant à la fois l'énergie et les données. La forte puissance optique utilisée pour l'énergie fait apparaître des effets non-linéaires sur la fibr...
Conference Paper
For the last decades, transmission of data and power over one single fiber has been investigated in different configurations for seafloor observatories. Recently, this technology was studied for long links up to 10 km. This quasi-all-optical link was demonstrated capable of transmitting data at 5 Mbits/s while providing an electrical power of 12...
Conference Paper
Full-text available
RÉSUMÉ Nous présentons un modèle spectral prenant en compte différents phénomènes optiques non-linéaires lors de la propagation conjointe des signaux de puissance et de données sur une fibre optique pour des applications liées aux observatoires câblés de fond de mer. Une comparaison entre les résultats des simulations numériques et les résultats is...
Article
ABSTRACTA 10‐km long extension using power‐over‐fiber technology and dedicated to sea floor observatories is presented with a particular focus on the electrical both ends units. We propose a solution using a serial peripheral interface 3 wires protocol for large range of low‐power sensors like hydrophones. © 2013 Wiley Periodicals, Inc. Microwave O...
Conference Paper
Full-text available
In comparison with conventional SOA intensity modulators in IMDD PON systems, two cascaded SOAs can considerably improve the transmission performance of Adaptively Modulated Optical OFDM signals for low input powers, broaden the optimum operating condition ranges, and allow achieving signal bit rates of >30Gb/s over >60km SMFs.
Conference Paper
We propose a semi-phenomenological model to calculate the material gain of multiple quantum well broadband Semiconductor Optical Amplifier (SOA). We show that this proposed model permits to fit well the experimental results of a broadband SOA gain and noise figure over a range of 100nm.
Conference Paper
Full-text available
This paper describes two methods for characterizing underwater optical elements under both hyper-baric pressure and high optical power. Commercial optical feedthroughs to be tested were inserted in a hyper-baric vessel and a 600 bar pressure was applied as an optical power of several Watts was sent over the optical fibers. An unexpected decrease of...
Conference Paper
Full-text available
We describe a 10 km long optically powered data link dedicated to a submarine cabled observatory. A single optical fiber is deployed to both transmit the exchanged data and the energy to supply the remote instrument. We focus on the optical phenomena which occur in the optical fiber due to the presence of the high optical power, and its superimposi...
Conference Paper
Full-text available
A power-over-fiber system using a single fiber optic of 10km devoted to transmit the energy to supply a remote equipment and also the up/down-stream data exchanged between a shore station and the equipment, is presented in this paper. Firstly, we present an overview of the developed quasi-all-optical architecture and its main communication protocol...
Article
Full-text available
We describe a quasi-all-optical extension dedicated to simplifying the deployment of submarine cabled observatories. Based on power-over-fiber technologies, high power supply and data are both transmitted in one optical fiber of a few kilometers in length. We study the Raman amplification on the down- and up-stream data in the static regime with th...
Article
We present a numerical analysis of the impact of the optical amplification by semiconductor optical amplifiers (SOAs) in a Coherent Optical-Orthogonal Frequency Division Multiplexing transmission link at 100 Gb/s. The numerical modeling of SOA is developed to be able to simulate all of nonlinear effects of the SOA, particularly four-wave mixing eff...
Article
In comparison with conventional semiconductor optical amplifier (SOA) intensity modulators in intensity modulation and direct detection (IMDD) passive optical network (PON) systems, quantum dot SOA intensity modulators can considerably improve the transmission performance of optical orthogonal frequency division multiplexed (OFDM) signals, broaden...
Article
Experimental results of using a Semiconductor Optical Amplifier (SOA) as an in-line amplifier for a Coherent Optical-Orthogonal Frequency Division Multiplexing (CO-OFDM) transmission system are presented. The impact of the SOA nonlinearities on the amplification of a 10.94 Gb/s QPSK CO-OFDM signal with respect to the input power, the signal wavelen...
Conference Paper
The numerical modeling of semiconductor optical amplifiers (SOA) being able to simulate all of nonlinear effects of the SOA, particularly FWM effect, is presented. This model is integrated into a co-simulation platform to perform a simulation at a system level. A CO-OFDM transmission link and EVM measurement are used to study the impact of SOA and...
Article
Full-text available
RÉSUMÉ Dans cette communication, nous présentons une étude de l'influence des amplificateurs optiques à semi-conducteurs (SOA) sur un système de transmission optique CO-OFDM. Cette étude est réalisée par simulation sur une large bande passante optique. Nous évaluons la qualité du signal par l'intermédiaire de son erreur vectorielle d'amplitude (EVM...
Article
Full-text available
Submarine cabled networks are designed to collect valuable data in geophysics, geochemistry, biology, or oceanography. Unfortunately, the development of such a network is expensive and needs complex subsea infrastructures. Once in place, a cabled network cannot be easily relocated. The current cost of cables and their installation are one of the ma...
Article
In this work, we present simulation results of SOAs optical bandwidth widening. Results are based on SOA model associated to an optimization algorithm in order to design the spectrally selective filter. A widening of 60% is achieved.
Article
We present experimental results showing the ability of using a spectrally selective reflectivity to widen SOAs optical bandwidth. Results show a sufficient widening over 160 nm extending the amplification from 5 to 8 CWDM channels.
Conference Paper
Full-text available
In this work, we study theoretically and by simulation the influence of SOA's nonlinearities on the amplification of optical signals in the context of OFDM transmission systems with coherent reception. We present the co-simulation environment developed for this study, for both transmission and reception. This platform also enables to study the ampl...
Conference Paper
Full-text available
In this paper, we present a co-simulation technique to analyze the influence of the SOA's nonlinearities on the amplification of optical OFDM signals in the transmission systems with coherent reception. This simulation platform also enables to study the amplification of several complex optical modulation formats of the optical carrier.
Conference Paper
Full-text available
The observation and the understanding of ocean depth behaviours require the development of sea floor observatories, well equipped with real time instrumentation. However, a large-scale deployment of such a network is expensive and needs a complex infrastructure with power supply and data exchange issues. The main objective of this study is to devel...
Conference Paper
Full-text available
These last years, we witnessed the development of sea floor observatories networks (as ESONET [1]) which are very attractive for much multidisciplinary research projects (projects where geophysics, chemistry, biochemistry, oceanography or biology are involved). It is well-known that these observatories require complex substructures, expensive equip...
Article
Full-text available
Le multiplexage en polarisation fait partie des diverses techniques fortement envisagées pour augmenter l'efficacité spectrale des futurs systèmes de communications optiques. Cependant, outre les difficultés liées à l'émission et à la réception de ces signaux optiques complexes, se pose le problème de leur amplification tout-optique, notamment à ba...
Article
In this work, we present a small-signal analysis which reveals its usefulness to explain the evolution of the optical frequency responses obtained at the outputs of two-cascaded semiconductor optical amplifiers (SOAs) used in a counterpropagating configuration (TC-SOA-CC). To obtained these responses, the TC-SOA-CC configuration has been implemente...
Conference Paper
Full-text available
In this paper, we present the experimental realization of all-optical inverted and non-inverted wavelength conversion based on cross polarization modulation (XPolM) in a semiconductor optical amplifier. The novel and attractive feature in our work is that both all-optical functions can be obtained without changing the set-up configuration. Switchin...
Article
Full-text available
In this paper, we present a full spectro-polarimetric characterization of the Amplified Spontaneous Emission (ASE) emitted from a commercial, strained-bulk Semiconductor Optical Amplifier (SOA). A partly polarised, broadband noise source that draws from the same carrier reservoir as the amplified signal, ASE affects the state of polarisation of the...
Conference Paper
Semiconductor optical amplifiers (SOAs) are very attractive components for optical communication systems. We have already shown that two-cascaded SOAs in a counterpropagating configuration (TC-SOA-CC) based on XGM is interesting for all-optical signal processing (Kim et al., 2000). The contra-directional input signals are injected in SOA. In this c...
Article
A novel all-optical logic OR gate based on cross-gain modulation (XGM) using a two-cascaded semiconductor optical amplifiers (SOAs) in a counterpropagating topology is presented. The attractive issue of the proposed method is that the logic OR gate can be obtained at a probe wavelength by taking advantage of the positive gain variation of one of th...
Article
A two-cascaded semiconductor optical amplifier configuration in a counterpropagating topology is proposed for an all-optical wavelength conversion operation. The attractive issue of the proposed method is that the converted signal can be obtained simultaneously with an inverted and noninverted signal. The all-optical noninverted wavelength conversi...
Article
Full-text available
Semiconductor Optical Amplifiers (SOAs) are of central interest as multifunctional, easy-to-integrate components for the development of future optoelectronic systems. Their dependence upon the incoming light polarization is a well-known, but still debated, issue in the context of emerging optical telecommunication networks, fueling the need for a d...
Article
In this paper, the all-optical realization of a logic OR gate using gain saturation in a standard semiconductor optical amplifier (SOA) is successfully experimentally demonstrated. This reported feasibility study shows the all-optical OR function can be easily achieved with an extinction ratio of about 7 dB. © 2003 Wiley Periodicals, Inc. Microwave...
Article
We investigate theoretically and experimentally the performances of two cascaded Semiconductor Optical Amplifiers (SOAs) in a counter-propagating topology. This configuration accentuates the gain non-linearity due to the mutual modulation of the two SOAs. Experimental results are obtained by using two SOAs of 500 μm and 750 μm lengths. By using thi...
Article
We investigate theoretically and experimentally the performances of two cascaded Semiconductor Optical Amplifiers (SOAs) in a counter-propagating topology. This configuration accentuates the gain non-linearity due to the mutual modulation of the two SOAs. Experimental results are obtained by using two SOAs of 500 mum and 750 mum lengths. By using t...
Conference Paper
Both thanks to their capability to operate as multifunctional devices, their compatibility with numerous optical passive or active devices and their potentially low cost, Semiconductor Optical Amplifiers (SOAs) have demonstrated their attractiveness for lightwave communication systems and future integrated photonic circuits. In this context, we hav...
Article
The authors present a novel all-optical logic NOR gate using two-cascaded semiconductor optical. amplifiers (SOAs) in a counterpropagating feedback configuration. This configuration accentuates the gain nonlinearity due to the mutual gain modulation of the two SOAs. The all-optical NOR gate feasibility has been demonstrated delivering an extinction...
Article
La réponse fréquentielle obtenue par photodétection avec un AOSC multiélectrode, image de la dynamique des porteurs présents dans la cavité, peut être obtenue sur chacun de ses N contacts. Nous en proposons ici sa modélisation en régime petit-signal, dans le cas particulier d'un AOSC biélectrode. La validité de l'approximation obtenue est justifiée...
Article
By optimizing the carrier distribution along the longitudinal axis of a two-section semiconductor optical amplifier (SOA), we have improved the modulation/switching performances (modulation index and efficiency, switching contrast) with respect to those of a single-section component. The modulation efficiency has been raised by up to 137%. © 2001 J...
Article
We present a theoretical analysis and experimental results for a two-electrode (200 μm×300 μm) 1.5-μm semiconductor optical amplifier (SOA) used in photodetection. The experimental results show that at a particular operating point regarding current and optical input power, a sign reversal of the photodetected signal response, and a frequency bandwi...
Conference Paper
Experimental and theoretical investigation of SOAs gain recovery dynamics monitoring by inline photodetection in multi-electrodes SOAs is reported. A relationship between optical output and rearcontact photodetected responses is established and analyzed by small-signal analysis.
Article
We present a theoretical analysis and experimental results for a two-electrode (200 μm×300 μm) 1.5-μm semiconductor optical amplifier (SOA) used in photodetection. The experimental results show that at a particular operating point regarding current and optical input power, a sign reversal of the photodetected signal response, and a frequency bandwi...
Article
A rate equation model for static and dynamic behavior for bidirectional transmission in a multisection semiconductor optical amplifier (SOA) is presented. The rate equations for each section have been implemented on an electrical simulator. Here, we have used the model to study the inline photodetection in presence of bidirectional transmission. Sm...
Conference Paper
We investigate the evolution of the frequency band-pass photodetection response at the rear contact of a multi-electrode SOA by the compression gain filtering effect. Experimental results are obtained by using a two-section SOA (300 μm-200 μm). Analysis is done by modelling the SOA cavity by M cascaded sections to take into account the spatially di...
Conference Paper
The influence of cross gain modulation on the harmonics photodetection response is presented in a multi-electrode SOA. The cross gain modulation permits the achievement of low photodetection distortion for particular points as functions of optical input power and bias current. Experimental results are obtained by using a three electrode SOA of 500...
Article
A theoretical analysis and experimental results of the selective photodetection wavelength response are presented. The photodetection crosstalk between two optical injected signals is also measured, and experimental results show that the generated crosstalk ratio is lower than −10 dB for 20 nm separation between two optical incident signals. © 1998...

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