Presentation

New functions that appear as necessary or useful in the next generation telecommunication network roadmap are here studied, realised, appraised and characterised. Some of the devices that are realised at LPN are intended to be experimented in transmission demonstrators. The device response is interdependant with the global transmission system performances. Characterisation is then specifically managed versus representative signal properties in temporal, spectral, energetics and stochastics areas. Function demonstration are realised in order to foresee component behaviour once introduced into the system and to prospect some singular effects. Own charaterizations conducted at LPN can also been completed in transmission configuration within other partner labs.

Actual topics

Main studied functions are : all-optical regeneration with saturable absorber, dynamic wavelength conversion and fast spatial switching. All optical regeneration module is based with the use of an ultra-fast saturable absorber. Full operating has been shown at 40Gbit/s in a transoceanic transmission experiment. Furthermore a significative improvement of the system robustness has been achieved at 20Gbit/s when limited by signal over noise ratio. Wavelength conversion is useful for network management or for signal regeneration. It is here achieved in electro-absorbant MQW guides with new structures that allow to process ultra-fast signal at low voltage in the whole C band. Spatial switching device is realised thanks to the association of two multi-channel acousto-optics cells in GaAs. Symetric and fast operating has been shown from 8 fibered inputs to 8 other ones.

Future

Next experiments with new generation devices will be conducted in the WDM NGN context at high bit rate: signal regeneration with ultrafast semi-conductor saturable absorber, wavelength management by in- line conversion with short scape time electro-absorbant modulator (MQW ou QD) or by source switching with DBR-EAM module, short pulse generation at high rate with 1/2-VCSEL or gain-switched DFB laser, clock recovery with MQW super lattice photo-oscillator or auto-pulsing DBR laser, dispersion compensation with photonics cristals, dynamic spectral equalisation with acousto-optics filter. The DESCARTES platform that is continuously maintained at the state of the art will support their charaterization up to 170 Gbit/s data rate. Numerous collaborations are establihed with Alcatel-Lucent, ENSSAT-Lannion, Alcatel-Thalès III-V Lab , Thalès Aerospace, Thalès RT, ENST-Paris, Alcatel R&I/URP, Institut National des Télécoms, Orange Lab, CCLO, ENIB and ENST-Bretagne.

Fig. 1 : 20Gbit/s signal before (left) and after regeneration (right)with ultra-fast saturable absorber.	Fig. 2 : Spatial switch for 8 to 8 fibered ports.

DESCARTES platform

DESCARTES Platform is a set of performing measurement equipments allowing functional characterization of devices for optical telecommunication of next generation networks. It is involved in the research program of Laboratoire de Photonique et de Nanostructures, in order to contribute to the analysis and the study of novel devices that have been designed and built at LPN. It also participates to the evaluation of components or equipments from academic and industrial laboratories.

Highlights

• Record NRZ Transmission Reach at 20, 25 and 40-Gb/s in Standard Fiber without Optical Filter Using a Dual Electro-absorption Modulated Laser (2012-12-07)
  Theme : Composants microélectroniques et photoniques
  
  

Members

Contacts

Aubin Guy

(+33) 1 69 63 61 51

And also...

Kechaou Khalil	(+33) 1 69 63 60 40
Bouchoule Sophie	(+33) 1 69 63 61 53
Gauthron Karine	(+33) 1 69 63 61 94
Merat-Combes Marie-Noelle	(+33) 1 69 63 61 13
Merghem Kamel	(+33) 1 69 63 60 02
Minot Christophe	(+33) 1 69 63 61 52
Oudar Jean-Louis	(+33) 1 69 63 61 49
Ramdane Abderrahim	(+33) 1 69 63 61 50
Talneau Anne	(+33) 1 69 63 61 46

Patents

• High bit rate pseudo-random generator, G. Aubin, FR 0450170, (2005-01-31)
  

Publications

• Improved NRZ transmission distance at 20 Gbit/s using dual electroabsorption modulated laser , K. Kechaou, T. Anfray, K. Merghem, C. Aupetit-Berthelemot, G. Aubin, C. Kazmierski, C. Jany, P. Chanclou, D. Erasme, Electron. Lett. , 335 (2012)
• Electroabsorption modulator laser for cost-effective 40 Gbit/s networks with low drive voltage, chirp and temperature dependence , G. Aubin, J. Seoane, K. Merghem, M.S. Berger, C.F. Jespersen, A. Garreau, F. Blache, C. Jany, J.-G. Provost, C. Kazmierski, P. Jeppesen, Electron. Lett. 45, 1263 (2009)
• Optical Feedback Tolerance of Quantum-Dot and Quantum-Dash Based Semiconductor Lasers Operating at 1.55 ?m , S. Azouigui, B. Dagens, F. Lelarge, J.-G. Provost, D. Make, O. Legouezigou, A. Accard, A. Martinez, K. Merghem, F. Grillot, O. Dehaese, R. Piron, S. Loualiche, Q. Zou, A. Ramdane, IEEE J. Select. Topics Quant. 15 (3), 764 (2009)
• WDM compatible 2R regeneration device based on eight-channel saturable absorber module , Q. T. Le, L. Bramerie, S. Lobo, M. Gay, M. Joindot, J.-C. Simon, A. Poudoulec, M. Van der Keur, C. Deverny, D. Massoubre, J.-L. Oudar, G. Aubin, A. Shen, J. Decobert, Electron. Lett. 43 (23), 1305 (2007)
• Tolerance to optical feedback of 10 Gbps quantum-dash based lasers emitting at 1.55 ?m , S. Azouigui, B. Dagens, F. Lelarge, J.-G. Provost, A. Accard, F. Grillot, A. Martinez, Q. Zou, A. Ramdane, IEEE Phot. Techn. Lett. 19 (15), 1181 (2007)
• Sub-picosecond pulse generation at 134 GHz using a quantum dot based Fabry-Perot laser emitting at 1.56 ?m , C. Gosset, K. Merghem, A. Martinez, G. Moreau, G. Patriarche, G. Aubin, J. Landreau, F. Lelarge, A. Ramdane, Appl. Phys. Lett. 88, (2006)
• Phase-amplitude Characterization of a high repetition rate Quantum Dash Passively Mode-Locked Laser , C. Gosset, K. Merghem, G. Moreau, A. Martinez, G. Aubin, J.-L. Oudar, A. Ramdane, F. Lelarge, Opt. Lett. 31, 1848 (2006)
• Analysis of thermal limitations in high speed microcavity saturable absorber all-optical switching gates , D. Massoubre, J.-L. Oudar, A. O'Hare, M. Gay, L. Bramerie, J.-C. Simon, A. Shen, J. Decobert, J. Lightwave Technol. 24, 3400 (2006)
• Highly dispersive photonic crystal-based coupled-cavity structures , A. Talneau, G. Aubin, A. Uddhammar, A. Berrier, M. Mulot, S. Anand, Appl. Phys. Lett. 88, 201106 (2006)
• Sub-Picosecond Pulse Generation at 134 GHz and Low Radiofrequency Spectral Linewidth In Quantum Dash-Based Fabry-Perot Lasers Emitting at 1.5 ?m , C. Gosset, K. Merghem, A. Martinez, G. Moreau, G. Patriarche, G. Aubin, J. Landreau, F. Lelarge, A. Ramdane, Electron. Lett. 42, 91 (2006)
• All-optical Wavelength Conversion by EAM With Shifted Bandpass Filter for High Bit-Rate Networks , N. El Dahdah, R. Coquille, B. Charbonnier, E. Pincemin, C. Kazmierski, J. Decobert, A. Vedadi, G. Aubin, A. Ramdane, IEEE Phot. Techn. Lett. 18 n?1, 61 (2006)
• Phase and Amplitude Characterization of a 40 GHz Self-Pulsating DBR Laser Based on Autocorrelation Analysis , C. Gosset, J. Renaudier, G.-H. Duan, G. Aubin, J.-L. Oudar, J. Lightwave Technol. 24, 970 (2006)
• All-optical extinction ratio enhancement of a 160GHz pulse train using a saturable absorber vertical microcavity , D. Massoubre, J.-L. Oudar, J. Fatome, S. Pitois, G. Millot, J. Decobert, J. Landreau, Opt. Lett. 31, 537 (2006)
• Cascadability Assessment of a 2R Regenerator Based on a Saturable Absorber and a Semiconductor Optical Amplifier in a Path Switchable Recirculating Loop , M. Gay, L. Bramerie, D. Massoubre, A. O'Hare, A. Shen, J.-L. Oudar, J.-C. Simon, IEEE Phot. Techn. Lett. 18, 1273 (2006)
• New design of InGaAs/InGaAlAs MQW electro-absorption modulator for high speed all optical wavelength conversion , N. El Dahdah, J. Decobert, A. Shen, S. Bouchoule, C. Kazmierski, G. Aubin, B.-E. Benkelfat, A. Ramdane, IEEE Phot. Techn. Lett. , 2302 (2004)
• Multichannel acousto-optic cells for fast optical crossconnect , G. Aubin, J. Sapriel, V.-Y. Molchanov, R. Gabet, P. Grosso, S. Gosselin, Y. Jaouen, Electron. Lett. 40, 448 (2004)
• Ultrafast quantum-well saturable absorber devices and their application to all-optical regeneration of optical telecommunication optical signals , J.-L. Oudar, G. Aubin, J. Mangeney, S. Loualiche, J.-C. Simon, A. Shen, O. Leclerc, Annals of Telecommunications 58, 1667 (2003)
• Fiber optic applications of multiple quantum well electroabsorption modulators , A. Ramdane, F. Devaux, N. El Dahdah, G. Aubin, Annals of Telecommunications 58, 9 (2003)
• Regeneration capabilities of passive saturable absorber-based optical 2R in 20Gbit/s RZ DWDM long-haul transmissions , F. Seguineau, D. Rouvillain, H. Choumane, G. Aubin, J.-L. Oudar, P. Brindel, B. Lavigne, O. Leclerc, Electron. Lett. 39, 857 (2003)
• optical 2R regenerator based on passive saturable absorber for 40Gbit/s WDM long haul transmission , D. Rouvillain, F. Seguineau, L. Pierre, P. Brindel, H. Choumane, G. Aubin, J.-L. Oudar, O. Leclerc, Electron. Lett. , 1113 (2002)
• Comparison of light- and heavy-ion-irradiated quantum-wells for use as ultrafast saturable absorbers , J. Mangeney, H. Choumane, G. Patriarche, G. Le Roux, G. Aubin, J.-C. Harmand, H. Bernas, J.-L. Oudar, Appl. Phys. Lett. 79, 2722 (2001)
• system application of 1.5?m ultrafast saturable absorber in 10Gbit/s long-haul transmission , J. Mangeney, S. Barre, G. Aubin, J.-L. Oudar, O. Leclerc, Electron. Lett. , 1725 (2000)
• All-optical discrimination at 1.5 µm using ultrafast saturable absorber vertical cavity device , J. Mangeney, G. Aubin, J.-L. Oudar, J.-C. Harmand, G. Patriarche, H. Choumane, N. Stelmakh, J. M. Lourtioz, Electron. Lett. , 0 (2000)
• Ultrafast saturable absorption in heavy-ion irradiated quantum well vertical cavity , J. Mangeney, J.-L. Oudar, J.-C. Harmand, C. Meriadec, G. Patriarche, G. Aubin, N. Stelmakh, J. M. Lourtioz, Appl. Phys. Lett. 76, 1371 (2000)
• Demonstration of high robustness to SNR impairment in 20 Gbit/s long-haul transmission using 1.5 ?m saturable absorber , O. Leclerc, G. Aubin, P. Brindel, J. Mangeney, H. Choumane, S. Barre, J.-L. Oudar, Electron. Lett. 36, 1944 (2000)
• 40Gbit/s OTDM soliton transmission over transoceanic distances , G. Aubin, T. Montalant, J. Moulu, F. Pirio, J.-B. Thomine, F. Devaux, Electron. Lett. , 2188 (1996)

Contracts and projects

ANR non thématiques

MODULE : Integrated optical source with dual modulation for access and metropolitan networks

Reference contract : ANR VERSO
LPN leader(s): Guy Aubin
Main goals : Etude, développement et tests d'une source optique à double attaque électrique jusqu'à 40Gbit/s (2009-2013)




ANR RNRT

FUTUR : Fonctions optiqUes pour Transmission à très haUt débit dans le Réseau coeur

Reference contract : Programme TELECOM
LPN leader(s): Jean-Louis Oudar
Main goals : Développement et étude de l'insertion de fonctions optiques à base de fibres optiques spéciales ou à base de semiconducteurs dans des lignes de transmissions à très haut débit (160 Gbit/s ou plus) (2007-2010)

TONICS : ANR Telecom – Linear and non-linear optical sampling techniques for anolog-to-digital conversion of millimetre wave signals and for the monitoring of high-bit rate optical data

Reference contract : ANR Telecom
LPN leader(s): Jean-Louis Oudar, Sophie Bouchoule, Guy Aubin
Main goals : The aim of the project is to develop optical sampling techniques to realise two functions : analog to digital conversion for millimeter wave (40 and 60 GHz) on an optical carrier, and a linear sampling device to observe eye diagramme and constellation of hig bit-rate (40 Gbit/s and beyond) optical signals. The key elements are a short pulse laser source with ultra-low timing jitter and all-optical sampling gates. Two kinds of laser sources emitting at 1.55 µm wavelength are investigated : mode-locked monolithic quantum-dot based edge emitting lasers, and mode-locked vertical extended cavity surface emitting lasers (ML-VECSEL). The repetition frequency of the mode-locked source lies in the 50MHz-500MHz range (for the linear optical sampling circuit), and in the 2 GHZ – 20 GHz range (for analog-todigital conversion circuit). A key-parameter of the source is its low-timing jitter.LPN has investigated a linear sampling circuit, and a ML-VECSEL source. The source is delivered to TRT partner for the investigation of the timing jitter. - Project Partners : Alcatel-Thales III-V lab (project leader), Thales (TRT and TAS), Aevix (SME), Europtest (SME) et LPN-CNRS. - Project Duration : 01/2006 – 06/2009 (2006-2009)

TONICS : Technologies d'échantillonnage linéaire et non-linéaire pour applications en conversion analogique - numérique et en transmission à très haut débit

Reference contract : ANR RNRT
LPN leader(s): Jean-Louis Oudar
Main goals : L’objectif du projet est de développer et valider la technologie d’échantillonnage optique pour réaliser, d’une part, la conversion analogique numérique d’un signal millimétrique à 40 et 60 GHz, et d’autre part un dispositif de mesure de diagramme de l’oeil et de constellation d’un signal numérique à très haut débit (40 Gbit/s et au-delà). (2006-2008)

ROTOR : Récupération d'horloge tout-optique pour la régénération

Reference contract : RNRT
Coordinator, Partner(s) : J.-C. Simon (ENSSAT ), P. Gallion (ENST), G.-H. Duan (III-V Lab), B. Lavigne (UTP), J. Remy (Aeroflex), L. Lablonde (Highwave)
LPN leader(s): Jean-Louis Oudar
Main goals : Conception d'une récupération d'horloge tout-optique pour la régénération (2003-2006)

ASTERIX : Absorbant saturable pour régénération térabits multiplexée en longueurs d'onde

Reference contract : RNRT
LPN leader(s): Jean-Louis Oudar
Main goals : Conception, démonstration et réalisation pré-industrielle d\'un module d\'amélioration de contraste des signaux optiques pour un débit de 1 Tbit/s reposant sur un absorbant saturable ultra-rapide. Associé à un amplificateur optique à fibre, le module assurera une régénération de type 2R, permettant d\'augmenter les performances des liaisons numériques par fibre optique (débit, espacement entre répéteurs) (2002-2006)




ANR PNANO

L2CP : Slow light in photonic crystal waveguides

Reference contract : ANR PNANO
Coordinator, Partner(s) : S. Combrie (TRT ), Y. Gottesman (INT)
LPN leader(s): Anne Talneau
Main goals : Etude et réalisation d'une ligne à retard accordable sur guide à cristaux photoniques (2007-2009)




National Networks Projects

CARRIOCAS : CAlcul Réparti sur Réseau Internet Optique à Capacité Surmultipliée

Reference contract : Pôle mondial de compétitivité System@tic
LPN leader(s): Guy Aubin
Main goals : Etude et développement d'un réseau coeur à fibre optique à ultra-haut débit (40Gbit/s par canal) avec des accès à très haut débit (10 Gbit/s Ethernet) (2007-2010)

Past and current Internship Training

Post-docs

• Récupération d'horloge optique à 40GHz

C. Gosset-(2004-04-26 / 2005-10-26)
Contact : J.-L. Oudar
Group : Photonic devices for telecom applications (PHOTEL)
More

PhDs

• Dual modulation transmitter for local and metropolitan networks

K. Kechaou-(On going since 2010-06-01)
Contact : G. Aubin
Group : Photonic devices for telecom applications (PHOTEL)
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• Conversion de longueur d'onde à très haut débit à base de modulateurs à électroabsorption

N. El Dahdah-(2000-10-01 / 2003-10-31)
Contact : A. Ramdane
Group : Photonic devices for telecom applications (PHOTEL)
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Thèse de doctorat de l'Université d'Orsay