Monique Thual - Academia.edu (original) (raw)
Papers by Monique Thual
diode array and lensed fibre ribbon
2008 International Topical Meeting on Microwave Photonics jointly held with the 2008 Asia-Pacific Microwave Photonics Conference, 2008
In this paper, we analyse and demonstrate the use of photonic functions to fulfill the requiremen... more In this paper, we analyse and demonstrate the use of photonic functions to fulfill the requirements of 60 GHz broadband radio communication systems for access and home area networks. In the access domain, high capacity mmW radio systems are used as point to point links for mobile backhaul or as bridges between fixed transport networks. We demonstrate first the provision
2008 34th European Conference on Optical Communication, 2008
... Gonzalez (2) 1: France Telecom R&D, 2 Av. Pierre Marzin, 22307 Lannio... more ... Gonzalez (2) 1: France Telecom R&D, 2 Av. Pierre Marzin, 22307 Lannion, France, benoit.charbonnier@orange-ftgroup.com 2 : Alcatel Thales III-V Lab, Route de Nozay, 91460 Marcoussis, France, frederic.vandijk@3-5lab.fr ...
Membrane Technology, 1993
This communication deals with a new technique for completely characterizing the equivalent therma... more This communication deals with a new technique for completely characterizing the equivalent thermal circuit of a laser diode and its assembling structure. This method is able to give informations about the thermal resistances and capacitances of the various parts of the whole solid composed by the laser diode, the solder layer and copper submount. Experiments performed on BRS and DFB
International Topical Meeting on Microwave Photonics, 2008
In this paper, we perform a frequency up-conversion from 4.5 GHz to 60 GHz of an OFDM signal comp... more In this paper, we perform a frequency up-conversion from 4.5 GHz to 60 GHz of an OFDM signal compliant to the IEEE802.15.3c pre-standard (3.03 Gbps) by directly modulating a Fabry-Perot mode-locked laser whose self-pulsating frequency is 54.8 GHz. Improved performance compared to the external modulation scheme previously reported is achieved and comparison with the use of a standard electronic up-converter
Optical Fiber Communication Conference, 2015
We experimentally demonstrate the joint use of OFDM and channel flattening effect provided by a F... more We experimentally demonstrate the joint use of OFDM and channel flattening effect provided by a Fabry-Perot filter to allow higher than 25 Gbit/s direct intensity modulated, directly detected transmission over up to 75 km SSMF.
Organic Optoelectronics and Photonics III, 2008
Conjugated polymer materials have great potential to be suitable candidates for use in all-optica... more Conjugated polymer materials have great potential to be suitable candidates for use in all-optical network communications. They possess ultra-fast response times and a large third order non-linearity compared to minerals (third order susceptibility χ(3) of conjugated polymers can be 4 orders of magnitude larger than that of fused silica). Such large non-linearities would allow the fabrication of compact all-optical devices at low power levels. Here we present the first investigations into the creation of a conjugated polymer single mode optical waveguide based on Poly(3- AlkylThiophene) (P3AT). We first synthesized the P3AT and tried to control the chemical reaction conditions in order to improve polymer solubility in common organic solvents. In parallel, we studied the engineering of P3AT single mode waveguide structures made by photolithography techniques which requires the adjustment of P3AT thermo-mechanical properties. Recently, we have been able to fabricate and measure the parameters of Strip-Loaded and buried waveguides with usual polymers. We intend to adapt these processes to obtain the first P3AT single mode optical waveguide.
IEEE Photonics Technology Letters, 1994
A semiconductor optical amplifier has been used as an external modulator. The large signal respon... more A semiconductor optical amplifier has been used as an external modulator. The large signal response ias shown a 3-dB bandwidth of 3.1 GHz when the amplifier was saturated by the input optical wave. Moreover, the effective phase-amplitude coupling factor, which is a typical parameter of a semiconductor optical amplifier, was measured to be 8.
Electronics Letters, 1998
A new concept is proposed for lensed fibres fabricated according to a collective and low cost pro... more A new concept is proposed for lensed fibres fabricated according to a collective and low cost process. This process is based on cleaving and splicing of optical fibre ribbons and is suitable for the coupling of laser diode arrays and fibre ribbons.
Electronics Letters, 2003
A new configuration of micro-lensed fibre that consists of a quarter pitch length of 125=125 mm g... more A new configuration of micro-lensed fibre that consists of a quarter pitch length of 125=125 mm graded index section with a hyperbolic end shape is proposed. Low loss and long working distance for laser diode and singlemode fibre coupling have been verified.
Optical Materials, 2017
A micro-resonator based on porous silicon ridge waveguides is implemented by a large scale standa... more A micro-resonator based on porous silicon ridge waveguides is implemented by a large scale standard photolithography process to obtain a low cost and sensitive sensor based on volume detection principle instead of the evanescent one usually used. The porous nature of the ridge waveguides allows the target molecules to be infiltrated in the core and to be detected by direct interaction with the propagated light. Racetrack resonator with radius of 100 µm and a coupling length of 70 µm is optically characterized for the volume detection of different concentrations of glucose. A high sensitivity of 560 nm/RIU is reached with only one micro-resonator and a limit of detection of 8.10-5 RIU, equivalent to a glucose concentration of 0.7 g/L, is obtained.
2016 18th International Conference on Transparent Optical Networks (ICTON), 2016
Racetrack micro-resonator (MR), made from partially or totally oxidized porous silicon (PS) ridge... more Racetrack micro-resonator (MR), made from partially or totally oxidized porous silicon (PS) ridge waveguides fabricated with standard photolithography process, is reported. The design and the technological process are described including a study of waveguide dimensions that provide single mode propagation. Scanning electronic microscopy observations and optical characterizations clearly show that the MR based on PS ridge waveguides has been well implemented. As the MRs will be used for sensing application, we also present a preliminary theoretical study of the porous MRs sensitivity. A very promising theoretical sensitivity around 1200 nm/RIU (Refractive Index Unit) has been calculated for such porous racetrack MR.
Nous presentons une nouvelle methode permettant de mesurer le coefficient non-lineaire de type Ke... more Nous presentons une nouvelle methode permettant de mesurer le coefficient non-lineaire de type Kerr des fibres optiques. Cette methode est basee sur la comparaison entre l'elargissement spectral du a l'automodulation de phase dans la fibre a mesurer et dans une fibre de reference. Nous demontrons la validite de la methode pour une fibre standard en verre de silice et deux fibres microstructurees en verre de chalcogenure.
Proceedings of SPIE - The International Society for Optical Engineering, 2009
In this work, we review recent progress on the realization of chalcogenides Photonic Crystal Fibe... more In this work, we review recent progress on the realization of chalcogenides Photonic Crystal Fibers (PCFs). We present the fabrication of chalcogenide PCFs with a solid core for three different glass compositions containing a variety of chalcogens. We show that the Stack and Draw technique currently used for silica PCFs can be problematic in the case of chalcogenides glasses. We present correct PCF design enables a significant improvement of final fiber losses. We obtained a lowest attenuation of 3 dB/m at 1.55 mum, of 4.5 dB/m at 3.39 mum and 6 dB/m at 9.3 mum. We also present experimental demonstration of self phase modulation spectral broadening around 1,55 mum. Moreover, we investigate the Brillouin and Raman scattering properties of a GeSbS PCF.
Laser Congress 2018 (ASSL), 2018
diode array and lensed fibre ribbon
2008 International Topical Meeting on Microwave Photonics jointly held with the 2008 Asia-Pacific Microwave Photonics Conference, 2008
In this paper, we analyse and demonstrate the use of photonic functions to fulfill the requiremen... more In this paper, we analyse and demonstrate the use of photonic functions to fulfill the requirements of 60 GHz broadband radio communication systems for access and home area networks. In the access domain, high capacity mmW radio systems are used as point to point links for mobile backhaul or as bridges between fixed transport networks. We demonstrate first the provision
2008 34th European Conference on Optical Communication, 2008
... Gonzalez (2) 1: France Telecom R&D, 2 Av. Pierre Marzin, 22307 Lannio... more ... Gonzalez (2) 1: France Telecom R&D, 2 Av. Pierre Marzin, 22307 Lannion, France, benoit.charbonnier@orange-ftgroup.com 2 : Alcatel Thales III-V Lab, Route de Nozay, 91460 Marcoussis, France, frederic.vandijk@3-5lab.fr ...
Membrane Technology, 1993
This communication deals with a new technique for completely characterizing the equivalent therma... more This communication deals with a new technique for completely characterizing the equivalent thermal circuit of a laser diode and its assembling structure. This method is able to give informations about the thermal resistances and capacitances of the various parts of the whole solid composed by the laser diode, the solder layer and copper submount. Experiments performed on BRS and DFB
International Topical Meeting on Microwave Photonics, 2008
In this paper, we perform a frequency up-conversion from 4.5 GHz to 60 GHz of an OFDM signal comp... more In this paper, we perform a frequency up-conversion from 4.5 GHz to 60 GHz of an OFDM signal compliant to the IEEE802.15.3c pre-standard (3.03 Gbps) by directly modulating a Fabry-Perot mode-locked laser whose self-pulsating frequency is 54.8 GHz. Improved performance compared to the external modulation scheme previously reported is achieved and comparison with the use of a standard electronic up-converter
Optical Fiber Communication Conference, 2015
We experimentally demonstrate the joint use of OFDM and channel flattening effect provided by a F... more We experimentally demonstrate the joint use of OFDM and channel flattening effect provided by a Fabry-Perot filter to allow higher than 25 Gbit/s direct intensity modulated, directly detected transmission over up to 75 km SSMF.
Organic Optoelectronics and Photonics III, 2008
Conjugated polymer materials have great potential to be suitable candidates for use in all-optica... more Conjugated polymer materials have great potential to be suitable candidates for use in all-optical network communications. They possess ultra-fast response times and a large third order non-linearity compared to minerals (third order susceptibility χ(3) of conjugated polymers can be 4 orders of magnitude larger than that of fused silica). Such large non-linearities would allow the fabrication of compact all-optical devices at low power levels. Here we present the first investigations into the creation of a conjugated polymer single mode optical waveguide based on Poly(3- AlkylThiophene) (P3AT). We first synthesized the P3AT and tried to control the chemical reaction conditions in order to improve polymer solubility in common organic solvents. In parallel, we studied the engineering of P3AT single mode waveguide structures made by photolithography techniques which requires the adjustment of P3AT thermo-mechanical properties. Recently, we have been able to fabricate and measure the parameters of Strip-Loaded and buried waveguides with usual polymers. We intend to adapt these processes to obtain the first P3AT single mode optical waveguide.
IEEE Photonics Technology Letters, 1994
A semiconductor optical amplifier has been used as an external modulator. The large signal respon... more A semiconductor optical amplifier has been used as an external modulator. The large signal response ias shown a 3-dB bandwidth of 3.1 GHz when the amplifier was saturated by the input optical wave. Moreover, the effective phase-amplitude coupling factor, which is a typical parameter of a semiconductor optical amplifier, was measured to be 8.
Electronics Letters, 1998
A new concept is proposed for lensed fibres fabricated according to a collective and low cost pro... more A new concept is proposed for lensed fibres fabricated according to a collective and low cost process. This process is based on cleaving and splicing of optical fibre ribbons and is suitable for the coupling of laser diode arrays and fibre ribbons.
Electronics Letters, 2003
A new configuration of micro-lensed fibre that consists of a quarter pitch length of 125=125 mm g... more A new configuration of micro-lensed fibre that consists of a quarter pitch length of 125=125 mm graded index section with a hyperbolic end shape is proposed. Low loss and long working distance for laser diode and singlemode fibre coupling have been verified.
Optical Materials, 2017
A micro-resonator based on porous silicon ridge waveguides is implemented by a large scale standa... more A micro-resonator based on porous silicon ridge waveguides is implemented by a large scale standard photolithography process to obtain a low cost and sensitive sensor based on volume detection principle instead of the evanescent one usually used. The porous nature of the ridge waveguides allows the target molecules to be infiltrated in the core and to be detected by direct interaction with the propagated light. Racetrack resonator with radius of 100 µm and a coupling length of 70 µm is optically characterized for the volume detection of different concentrations of glucose. A high sensitivity of 560 nm/RIU is reached with only one micro-resonator and a limit of detection of 8.10-5 RIU, equivalent to a glucose concentration of 0.7 g/L, is obtained.
2016 18th International Conference on Transparent Optical Networks (ICTON), 2016
Racetrack micro-resonator (MR), made from partially or totally oxidized porous silicon (PS) ridge... more Racetrack micro-resonator (MR), made from partially or totally oxidized porous silicon (PS) ridge waveguides fabricated with standard photolithography process, is reported. The design and the technological process are described including a study of waveguide dimensions that provide single mode propagation. Scanning electronic microscopy observations and optical characterizations clearly show that the MR based on PS ridge waveguides has been well implemented. As the MRs will be used for sensing application, we also present a preliminary theoretical study of the porous MRs sensitivity. A very promising theoretical sensitivity around 1200 nm/RIU (Refractive Index Unit) has been calculated for such porous racetrack MR.
Nous presentons une nouvelle methode permettant de mesurer le coefficient non-lineaire de type Ke... more Nous presentons une nouvelle methode permettant de mesurer le coefficient non-lineaire de type Kerr des fibres optiques. Cette methode est basee sur la comparaison entre l'elargissement spectral du a l'automodulation de phase dans la fibre a mesurer et dans une fibre de reference. Nous demontrons la validite de la methode pour une fibre standard en verre de silice et deux fibres microstructurees en verre de chalcogenure.
Proceedings of SPIE - The International Society for Optical Engineering, 2009
In this work, we review recent progress on the realization of chalcogenides Photonic Crystal Fibe... more In this work, we review recent progress on the realization of chalcogenides Photonic Crystal Fibers (PCFs). We present the fabrication of chalcogenide PCFs with a solid core for three different glass compositions containing a variety of chalcogens. We show that the Stack and Draw technique currently used for silica PCFs can be problematic in the case of chalcogenides glasses. We present correct PCF design enables a significant improvement of final fiber losses. We obtained a lowest attenuation of 3 dB/m at 1.55 mum, of 4.5 dB/m at 3.39 mum and 6 dB/m at 9.3 mum. We also present experimental demonstration of self phase modulation spectral broadening around 1,55 mum. Moreover, we investigate the Brillouin and Raman scattering properties of a GeSbS PCF.
Laser Congress 2018 (ASSL), 2018