EOLITE Systems PESSAC, France · THG Results • 63W @ 343nm ... 15-50 ps 300 W @ 1030 nm 65 W @...

www.esi.comLaser Business Division

Very high power picosecond and nanosecond

fiber lasers

François SALIN, Julien SABY, Pierre Jean DEVILDER, Anthony MEUNIER, Damien SANGLA, Alexandra RAPAPORT

EOLITE Systems ‐ PESSAC, France

www.eolite.com

Yb doped Rod type fiberYb doped Rod type fiber

(Patented design)

200 µm 80 µm

Air clad

Pump clad area

Active core area

2 mm fused silica‐rod (whole diameter hidden)

Very large mode area: > 7000 µm2

Very high absorption: up to 30 dB/mNo photodarkening

SINGLE MODE

• 40-100 µm core

• 100-200 µm clad

• 1-2 mm outer diameter

Photonic Crystal Fiber

Rod type fiber variety

Photonic Crystal Rod type fiber Distributed-Mode-Filtering (NKTP) Large Pitch Fiber (IAP)

I. High Average Power nanosecond lasers

Average power of Rod type fiber Q‐switched lasers at EOLITE

• Fiber length ≈ 50 cm

• Pump diode @ 976 nm

• AOM for Q‐Switching

Laser ConfigurationLaser ConfigurationSingle stage oscillator

Amplifier set-up

• Pulse duration down to 8 ns• Beam Quality M2 < 1.1• Spectral width < 400 pm

Common characteristicsCommon characteristics

M2<1.1

0.4 nm

IR Q-switched laser familly

310 W @ 300 kHz

< 25 ns pulsesM2 < 1.2Linear polarization 100:1

High power Q-switched rod type fiber laser

Power independent beam profile 1030nm

Beam quality independent of pump power level

No adjusment, close-loop needed

75W 100W 150W 191W 241W 282W 310W

Toward kW class, 10 nanosecond lasers

issue: beam instabilities at high power in LMA fibers. Fundamental physics

Multiplexing high power lasers

Wavelength multiplexing

Laser 1

Laser 2

Laser 3

Transmission Volume Bragg Grating

3 lasers 340 W 1 kWMain issue is the thermal load in the VBG

LEADERSHIP IN FIBRE LASER TECHNOLOGY (EC funded)

AIM : Demonstrate a 1 kW nanosecond system 1 kW 10 ns 10mJ @ 100 kHz M²<1.3

300 W @ 100 kHz10 ns 20 – 500 kHz

M2<1.3

Toward higher powers: polarization beam combining

Temporal synchronization: < 3 ns jitter Spatial beam overlapping

Laser1

Laser2Grating

Wavelength multiplexing2 lasers 1030 nm & 1047 nm

2x 210 W -> 400 W

GREEN 515 nmUV 343 nm

SHG Q-switched lasers @ different pump powerSHG Q-switched lasers @ different pump power

150 W @

515 nm

HIGHEST diffraction limited green power

on the market

M2= 1.07

Third Harmonic Generation47 W @ 343 nmType II LBO 20x3x3 mm

High Power Picosecond Fiber Lasers

High Repetition rate: 30 – 80 MHz SIROCCOHigh Peak Power: 0-5 MHz HEGOA

Laser Architecture

Pre-Amp

Main-Amplifier

Pulse picker

• Output Power = 291W

• 3.7µJ / 90kW

1030nm

Sirocco IR250

80 MHz

www.esi.comLaser Business Division23

1030nmM² Measurement @ 291W

Mx² = 1,21My² = 1,17

THG Results

• 63W @ 343nm / 80MHz• THG Efficiency = 25% (for improved UV lifetime)

343nm63W

Sirocco UV50

High energy picosecond fiber laser

Rod type fibers opens the road for MW peak powerpicosecond pulses

at low cost

1.5 MW peak power HEGOA IR60

SummaryRod Type Fibers offer an unique opportunity to get very high

average and very high peak powers with diffraction limited beams

Kilowatt class industrial short pulses lasers are coming

10 nanoseconds300 W (400W) @ 1030 nm

150 W @ 515 nm47 W @ 343 nm

15-50 ps300 W @ 1030 nm

65 W @ 343 nm1.5 MW peak power

EOLITE Systems PESSAC, France · THG Results • 63W @ 343nm ... 15-50 ps 300 W @ 1030 nm 65 W @...

Documents

R o ckf rd Pub l iS h sD t 205 Sub D is tr c E Maps/SubDistrictE.pdf · nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm H o l m e s S t D e a n e a D r S ervic Dr Ra mp G n ar l T r

J AME STR HPUB LI C O JK to Grade 8 175 B real y D iv , P ...kprcontentlibrary.kprdsb.ca:8080/docushare/dsweb... · nm nm nm nm nm nm nm nm nm nm nm nm nm n nm nm nm nm nm nm nm nmKenner

GEARBOXES - Regal Beloit - Regal Australiaregalaustralia.com.au/mktg/marketing/pdfs/Gears/MCB16027E 10005E … · 85 Nm 350 Nm 450 Nm 620 Nm 820 Nm 1500 Nm 1500 Nm 3000 Nm 4300 Nm

PESSAC DIRECT · 2019-01-18 · Les coordonnées de la Mairie Mairie de Pessac : ePlace de la V République – BP 40096 – 33604 Pessac cedex Tél. standard : 05 57 93 63 63 –

Part number: 044991 Dacia Sandero (HB)M6 M8 M10 M12 M12x100/110 M14 M16 M10x1,25 M12x1,25 M12x1,5 9,5 Nm 23 Nm 46 Nm 79 Nm 125 Nm 195 Nm 49 Nm 87 Nm 83 Nm 14 Nm 34 Nm 68 Nm 117 Nm

Elementary NOTICE · nm nm nm nm nm nm nm nm nm nm nm nm Frey Ford Lewis Hayes Baker Pitner Bullard Acworth Kennesaw Picketts Mill Big Shanty McCallL Primary I 75 OL D 4 1 M A R S

Pessac en direct 73

The Cloister Wine List · 1584 2017 Graville-Lacoste 60 1581 2000 Haut-Brion, Blanc, Pessac-Léognan, Grand Cru Classé 800 1567 2014 Malartic Lagraviere, Blanc, Pessac-Léognan Grand

SYRIA REFUGEE RESPONSE - reliefweb.intreliefweb.int/sites/reliefweb.int/files/resources/WASH_Presence... · nm nm nmn nm n nm nm nm nmnm n nm nm nm nm nm nm nmn nm nm nmnmn nnm nm

geospasial.bnpb.go.idgeospasial.bnpb.go.id/.../PETA-SEBARAN-PENDIDIKAN-DI-SEKITAR-GUNUNG... · nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm

Boutique Geant Casino Pessac -- all info here!

정성가득한돈...-5t*AW FTA 232 : 02-6.-2931. : 02-63W-2A%

Titanium Dioxide, NM-100, NM-101, NM-102, NM-103, NM-104, … · NM-102, NM-103, NM-104, NM-105: Characterisation and Physico- Chemical Properties JRC Repository: NM-series of Representative

MAPA DE VALORES DE TERRENOS Y … san jose goicoechea... · nm æ æ nm nm æ nm nm nm æ nm æ nm nm nm æ nm nm nm nm æ nm æ nm nm nm æ nm nm æ æ æ æ æ nm nm æ æ æ nm

Fact sheet - Univ of Bordeaux Campus Pessac-2014.2015-2nd ... · 2 International relations department- University of Bordeaux, Campus Pessac October 2014 Why the University of Bordeaux

Gate - images.landsofamerica.com"nm nmnm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm Þ B u l l T o n g u e C r e k West E n d S l o u g h B a ti s e C r e ek T-3 94 Ac

Task Force Proposal 4 - salkeiz.k12.or.us · nm nm nm nm nm nm nm nm nm nm nm nm nm nm nm S T R O N G R D S E 2 3 R D S T S E K U E B L E R B V S E S C R O I S A N C R E E K R D S

GIA 63/GIA 63W - Garmin · 2010-03-30 · E 6/8/06 Edited document to include the GIA 63W F 7/21/06 Corrected WAAS TSO G 9/19/06 Added RTCA/DO-229C deviation H 10/18/06 Added Comant

Reflectance Spectroscopy Lab. Different colors correspond to different wavelengths of visible light 665 nm 630 nm 600 nm 550 nm 470 nm 425 nm 400 nm

Introduction to Nanofabrication · • Thin Film Deposition • Patterning – Lithography • Film Modification ... Technology Trend 70 nm 65 nm 250 nm 180 nm 150 nm 130 nm 110 nm