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Ixblue Presentation at Advanced Fiber Laser Advanced – State of the Art – Fiber solutions and LiNbO3 Modulators and pulse generators for Fiber Lasers Dr Shuo ZHANG iXblue Photonics [email protected] High-Technology Independent Company 750+ employees 80% export 140+ M€ turnover Founded in 2000 iXblue in France Lannion Saint-Germain-en-Laye 8 industrial Specialty Fibers Navigation sites Navigation Headquarters Besançon 100% of R&D Integrated optics Brest Bonneuil- and production Underwater Acoustic sur-Marne Positioning Motion Systems as well as Acoustic Labcom 90% of suppliers located in France St Etienne Bordeaux Hardened optical fibers Labcom Cold Atoms Labcom Joint Research Laboratories La Ciotat Sonars Sea Operations Shipyard 1- AFL Topic 1: Fiber and Fiber based devices - Fiber and Fiber based devices offer for the laser world - Key Electro-optic modulation solutions for the laser world 2- AFL Topic 2: High power fiber laser - The laser seeder for the high Energy Industrial Lasers - Pump seeder source for Petawatt lasers based on OPCPA - The laser seeder for scientific High Energy Density Lasers TABLE OF - The diagnosis fibers for scientific High Energy Density Lasers 3- AFL Topic 3: Ultrafast fiber laser and nonlinear fiber optics CONTENT - Femtoscond Fiber Lasers and fibers solutions 4- AFL Topic 5: Beam combination of fiber lasers - The right electro-optical modulator for Coherent Beam Combining (CBC) lasers - The electro-optical modulators offer for Spectral Beam Combining (SBC) lasers 4- AFL Topic 6: Fiber laser application - 2 µm Fibre lasers for medical and defense application - Lidar: single-frequency fiber laser in sensing - Fiber based laser and free-space communication - Electro-optic based laser and free-space communication AFL Topic 1 Fiber and Fiber based devices Fiber and fiber based device Laser fiber design and fabrication Design, fabrication, and characterization of specialty optical fibers Fiber-based components and devices Fiber and Fiber based devices offer for the laser world Overview Thulium Holmium Erbium Neodynium Ytterbium Erbium/Ytterbium Thulium/Holmium Phosphorous 1900nm 2000 nm 2100 nm 2200 nm 910 nm 1015 nm 1130 nm 1240 nm 1480 nm 1530 nm 1625 nm Standards Fibers from stock Custom fiber Master in-house the entire fiber manufacturing process 3 days delivery Fiber Type High reliability Coating Single, Double, Triple Clad, All Glass, Multicore High temperature coating available Matched Passive Fibers Core Diameter From 350 to 2200 nm Up to 30 µm, LMA Polarisation Maintening FBG Lasers Mirros Pairs Panda Design available HR relectivity up to 99,99% Frequency doubling HR FWHM from 0.5 to 2nm Key Electro-optic modulation solutions for the laser world The need for EOMs in functional sub-system: expected optical performances MX, MXER, MXAN NIR-MPX800 NIR-MPX950 NIR-MPX MX1300 MPZ, MPX MX200 NIR-MX800 NIR-MX950 NIR-MX MPX1300 MXIQ, MXIQER MPX2000 760 nm 850 nm 960 nm 1150 nm 1270 nm 1330 nm 1625 nm 2050 nm Wavelength selected modulator Optical Power handling Capability (HOP) To ensure the best optical performances to each laser To ensure the highest optical power modulated signal Low insertion Loss (LIL) To ensure the highest optical power modulated signal High Static Extinction Ratio (HSER) For Single photon lasers and pulsed lasers sources Low Residual Amplitude Modulation (LRAM) LiNbO3 For PDH frequency laser technique Modulators High Polarization Extinction Ratio (HPER) For ultimate performances Optical performance Stability vs optical power (IL, PER, ER) Because of our Annealed Proton Exchange process quality Key Electro-optic modulation solutions for the laser world Manufacturing process on Lithium Niobate substrates ● APE technology + co-doped LiNbO3 substrate: makes it possible to increase the modulator optical power handling prior to trigging photo-refractive effects. ● The APE process makes the waveguide polarizing: only TE propagation. High PER by construction. ● Patent to reduce the Insertion Loss based on adapted optical waveguide size Optical Input Power: CW 300 mW @1064 nm Phase Modulators Amplitude Modulators Max deviation of 0,3 dB over time over 400 days IL ∼ 2,3 dB IL ∼ 3,2 dB LIL < 2 dB LIL < 2,5 dB Key Electro-optic modulation solutions for the laser world The ModBox systems based on external LiNbO3 modulation means 30 ps to several 100 ns optical pulse widths Strong background and High competences laser physics field For single photon laser souce Dedicated products Square Pulses, Arbitrary waveforms Waveform control flexibility Selected LiNbO3 modulator for ultimate performance The ModBox ensures the highest performances level Spectrum broadening solution ModBox Anti-Brillouin solutions Turn key and agile optical transmitter This is the ModBox DNA AFL Topic 2: High power fiber laser High power CW and pulsed fiber lasers High powerRaman fiber lasers High power narrow-linewidth and single-frequency fiber lasers Other types of high power fiber lasers Mode instability in high power fiber laser Beam characterization for high power fiber laser Pump sources for high power fiber laser The laser seeder for the high Energy Industrial Lasers Modulator, Fibers and ModBox Solutions ● Pulses from 1 - 10 ns, 10 to 100 J ● Material hardening by laser-induced shock wave (peening) ● Plasma and shock physics Seeder source t Ti:Sa (800 nm), Ytt glass 1030 nm) Neodym glass (1053 nm), YAG (1064 nm) Optical fiber Output Fibered laser Amplitude Diode or flash EOM amplifier pumped amplifier amplified t seeder signal Optical ns Pulse Shaper fibered laser source: Fibered ns Front-End ● Seeder source - key LiNbO3 modulators specification: ● Seeder source – ModBox-Front-End specification: ● NIR Modulators with very high optical Extinction Ratio ● ns NIR high optical pulse contrast stabilized over time ● Low Insertion Loss & high Optical Power Handling Capability ● Temporal optical pulse shaping to compensate the amplifiers’ distortions ● Optical fiber amplification to reach pulse energy in the range of nJ ● Optical amplifier uses LMA fiber Pump seeder source for Petawatt lasers based on OPCPA Petawatt class lasers Modulator, Fibers and ModBox Solutions ● Pulses shorter than a picosecond (ELI-Beamlines), up to 10 PW x ● Warm dense matter ● Plasma physics ● Acceleration of ions and electrons Synchro OPCPA pump Seeder t Ti:Sa (800 nm), Ytt glass 1030 nm) Neodym glass (1053 nm), YAG (1064 nm) Amplitude Optical fiber Diode or flash ns-OPCPA Output NIR DFB laser EOM amplifier pumped amplifier amplifier amplified seeder signal Optical ns Pulse Shaper fibered laser source: Fibered ns Front-End ● OPCPA pump source - key LiNbO3 modulators specification and fibers: ● OPCPA pump source – ModBox-Front-end specification: ● NIR Modulators with very high optical Extinction Ratio ● ns NIR high optical pulse contrast stabilized over time ● Low Insertion Loss & high Optical Power Handling Capability ● Temporal optical pulse shaping to compensate the amplifiers’ distortion and optimize the overlap between the pump and seeder signals ● Optical amplifier uses LMA fiber ● Optical fiber amplification to reach pulse energy in the range of nJ ● Very low jitter to warrant the best overlap between the pump and seed signals ● Optical amplifier uses LMA fiber The laser seeder for scientific High Energy Density Lasers High Energy and Power laser Modulator, Fibers and ModBox Solutions ● Few nanosecond optical pulse lasers, En > kJ (GSI, RAL, AWE, LULI, LLNL, SIOM), En > 1 MJ (LMJ, NIF) ●Inertial confinement fusion and plasma science ●Research in nuclear and particle physics,… Copyright «LULI2000 © Barande Jérémy / Ecole Polytechnique» Seeder source Ti:Sa (800 nm), Ytt glass 1030 nm) Neodym glass (1053 nm), t F F YAG (1064 nm) Phase Pulse optical Phase Flash pumped NIR Low phase Amplitude Optical fiber amplifier noise DFB laser EOM amplifier EOM fiber amplifier EOM SBS: Stimulated Higher Peak SSD: Smoothing Optical ns Pulse Shaper fibered laser source: Fibered ns Front-End Brillouin Suppression Power Amplifier by Spectral Dispersion ● Seeder source - key LiNbO3 modulators specification and fibers: ● Seeder source and optical amplifiers –ModBox-Front-End and fibers: ● High optical Extinction Ratio ● ns NIR high optical pulse contrast stabilized over time, high PER ● Low Insertion Loss & high Optical Power Handling Capability ● Temporal optical pulse shaping to compensate the amplifiers’ distortion ● Optical amplifier uses LMA fiber ● Optical fiber amplification to reach pulse energy in the range of nJ ● High Polarization Extinction Ratio to reduce the FM to AM conversion ● Very low jitter ● Low Vπ phase modulator ● SSB & SSD modulations based on spectrum broadening ● High PER: need of Polarizing fiber (PZ fiber) ● High PER: need of Polarizing fiber (PZ fiber) The laser seeder specifications The best performances today available on the market Arbitrary Optical Waveform Time jitter: • 125 ps to 100 ns Pulse width • Jitter 7 ps RMS • Single Shot to 100 kHz • Low-Jitter option < 7 ps-pp • 12 bits vertical resolution • 800 samples Extinction Ratio: Output optical power: • Single MZ: > 35 dB • 1030 nm, 1053 nm, 1064 nm • Double MZ: > 60 dB • < 1 % RMS. • High stability contrast < 1 %rms Energy levels: • 1 nJ / 1 ns – ER 35 dB • 300 pJ / 1 ns – ER 60 dB The diagnosis fibers for scientific High Energy Density Lasers Fibers Solutions High Energy and Power laser • Polarizing fibers : for pure single polarisation pulses propagation Copyright «LULI2000 © Barande Jérémy / Ecole Polytechnique» • Multimode Graded index fibers (MMGI) up to 400µm core - 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