high-energy picosecond laser systems between 10 hz and 2 ......introduction application of...
TRANSCRIPT
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High-Energy Picosecond Laser Systems
between 10 Hz and 2 kHz for
Next-Generation Laser Ranging
17. SLR Workshop
16.-20. May 2011
M. Schmidt1, N. Graf2, H. Huber1,R. Kelnberger2, J. Aus der Au1
1. High Q Laser Innovation GmbH, Feldgut 9, 6830 Rankweil, Austria2. InnoLas Laser GmbH, Justus-von-Liebig-Ring 8, 82152 Krailling, Germany
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Outline
� Introduction
� High Q Laser/Innolas Cooperation
� System Design
� Performance Data
� … picoREGENTM
� … Spitlight PICO
� Summary
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Introduction
� application of high-energy picosecond laser systems is well established in satellite geodesy
� Different applications in satellite geodesy require a different set of
laser parameters (� repetition rate, energy)
� High Q Laser - in collaboration with Innolas - offers a wide range of laser systems to cover the needs of the SLR community
InnoLas Low-Rep
RateSPITLIGHT
PICO
InnoLas High-Rep
RateSPITLIGHT
PICO
High Q Laser picoREGENTM HE
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� >11 years of experience in the development of picosecond and femtosecond laser systems
� >6 years of experience in OEM production of compact laser systems
� well-known partner in the SLR community
High Q Laser/Innolas Co-operation
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High Q Laser GmbH: Rankweil in Austria
Z...H...P...
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~ 900 m2 Clean Room Space (Production and R&D)
~ 700 m2 Office Space
Ready for further expansion
New Production Facilitysince Summer 2009
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&
� >16 years of experience in the development of nanosecond high-energy laser systems
� >15 years of experience in the industrial market
High Q Laser/Innolas Co-operation
� >11 years of experience in the development of picosecond and femtosecond laser systems
� >6 years of experience in OEM production of compact laser systems
� well-known partner in the SLR community
![Page 8: High-Energy Picosecond Laser Systems between 10 Hz and 2 ......Introduction application of high-energy picosecond laser systems is well established in satellite geodesy Different applications](https://reader035.vdocuments.us/reader035/viewer/2022071401/60ecf6eb13c0601e705df332/html5/thumbnails/8.jpg)
InnoLas Laser GmbH: Krailing in Germany
Z...H...P...
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since 1995
1973 JK Laser Ltd.was founded in Rugby, England
1981 Lumonics Inc. (Canada)purchased JK Lasers
1997 InnoLas purchased the manufacturing rights for Lumonics scientific Lasers
InnoLas Laser GmbH
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&
� >16 years of experience in the development of nanosecond high-energy laser systems
� >15 years of experience in the industrial market
High Q Laser/Innolas Co-operation
� >11 years of experience in the development of picosecond and femtosecond laser systems
� >6 years of experience in OEM production of compact laser systems
� well-known partner in the SLR community
� >11 years of experience in the development of picosecond andfemtosecond laser systems
� >6 years of experience in OEMproduction of compact laser systems
� well-known partner in the SLRcommunity
� >16 years of experience in the development of nanosecondhigh-energy laser systems
� >15 years of experience in the industrial market
PICOSECOND HIGH-ENERGY
Laser Systems
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System Design
picoREGENTM HE
Spitlight P
ICO
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picoREGENTM HE Overview
Amplifier
Pockels celldriver
Seed Oscillator
1000 Hz
(residual)
Electronics
Rack
Chiller Filter
1-10 Hz
to INNOLAS Post Amplifier
1000 Hz
Pulse Picker
Variable
Beamsplitter
Faraday Isolator
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picoREGENTM HE Overview
Amplifier
Pockels celldriver
Seed Oscillator
1000 Hz
(residual)
Electronics
Rack
Chiller Filter
1-10 Hz
to INNOLAS Post Amplifier
1000 Hz
Variable
Beamsplitter
Pulse Picker
Faraday Isolator
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picoREGENTM HE Results
Repetition Rate: 10 HzPulse Energy: 3.2 mJPower: 32 mWBeam Circularity: 96.9%M2: <1.3
Repetition Rate: 1 kHzPulse Energy: 3.2 mJPower: 3.2 WBeam Circularity: 91.8%M2: <1.3
1 kHz
10 Hz
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picoREGENTM HE Results II
3.4
3.2
3.0
2.8
2.6
2.4
2.2
2.0
Puls
e E
nerg
y @
106
4-n
m [m
J]
4035302520151050
Elapsed Time [h]
2.0
1.8
1.6
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0.0
Puls
e E
ne
rgy @
532-n
m [m
J]
131211109876543210
Elapsed Time [h]
Pulse Energy: 3.3 mJRepetition Rate: 1 kHzLong-Term Stability: 0.34% RMS
Pulse Energy: 1.7 mJRepetition Rate: 1 kHzLong-Term Stability: 0.29% RMS
1064-nm
532-nm
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Low-Rep. Rate Post Amp: Spitlight PICO
Amplifier
Pockels celldriver
Seed Oscillator
1000 Hz
(residual)
Electronics
Rack
1-10 Hz
to INNOLAS Post Amplifier
1000 Hz
Pulse Picker
Variable
Beamsplitter
Faraday Isolator
Innolas Spitlight PICOPost Amplifier
1 J @ 1–10 Hz3 mJ @ 1–10 Hz
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Low-Rep. Rate Post Amp: Spitlight PICO
� 2 Pump Chambers:� First chamber consists of 3 Nd:YAG laser rods pumped by 1 flash lamp
� Second chamber consists of 1 large Nd:YAG laser rod pumped by 2 flash
lamps
~2 mJ
>10 mJ
200 mJ>1000 mJ
Repetition Rates: 1-10 HzFlash-Lamp pumped
Total Amplification: 500x
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Low-Rep. Rate Post Amp: Spitlight PICO
Flash Lamp Pumped VersionFlash Lamp Pumped Version
Specifications
RepRate up to 20Hz
Energy up to 1J
Measured Data at 1J 10 Hz 1064nm 500ps
Beam Quality: M2 =1,8
Pointing stability: D = 12,5 µrad
Energy Stability: RMS = 0,9%
Specifications
RepRate up to 20Hz
Energy up to 1J
Measured Data at 1J 10 Hz 1064nm 500ps
Beam Quality: M2 =1,8
Pointing stability: D = 12,5 µrad
Energy Stability: RMS = 0,9%
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Profile 160mJ Nearfield Profile 1J Nearfield Profile 1J Beam Waist 1m LensProfile 160mJ Nearfield Profile 1J Nearfield Profile 1J Beam Waist 1m Lens
picoREGENTM / Spitlight PICO: Results
Flash Lamp Pumped VersionFlash Lamp Pumped Version
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picoREGENTM / Spitlight PICO: Results II
Repetition Rate: 10 HzPulse Energy: 1000 mJEnergy Stability: 0.9% RMS
15 minutes
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Specification Summary: Low-Rep Rate
Repetition Rates: 1-10 HzFlash-Lamp pumped
#Nd:YAG Laser Rods
Pulse Duration
[ps]
Pulse Energy @ 1064-nm
[mJ]
Pulse Energy @
532-nm
[mJ]
3 >250 ps 90 45
4 >250 ps 250 125
5 >250 ps 1000 500
3 ~10 ps 20 10
4 ~10 ps 50 25
5 ~10 ps 200 100
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High-Rep. Rate Post Amp: Spitlight PICO
Repetition Rates: 1-1000 HzDiode-pumped
� 2 Pump Chambers:� Each with 1 single Nd:YAG laser rod
� Each pumped by 3 laser diodes
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High-Rep. Rate Post Amp: Spitlight PICO
Diode Pumped VersionDiode Pumped Version
Specification example 100Hz, 250ps
Energy up to 30mJ @ 1064nm
15mJ @ 532nm
Specification example 100Hz, 8ps
Energy up to 25mJ @ 1064nm
13mJ @ 532nm
Specification example 1kHz, 8ps
Energy up to 12mJ @ 1064nm
6mJ @ 532nm
Specification example 100Hz, 250ps
Energy up to 30mJ @ 1064nm
15mJ @ 532nm
Specification example 100Hz, 8ps
Energy up to 25mJ @ 1064nm
13mJ @ 532nm
Specification example 1kHz, 8ps
Energy up to 12mJ @ 1064nm
6mJ @ 532nm
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Summary
� >3 mJ @ 1064-nm , 1-1000 Hz, ~10 ps
� >1.5 mJ @ 532-nm, 1-1000 Hz, ~10 ps
� up to 1 Joule @ 1064-nm and 10 Hz available
� up to 12 mJ @ 1064-nm and 100-1000 Hz available
� Green conversion efficiency: >50%
&
� >1.5 mJ @ 1064-nm , up to 2 kHz, ~10 ps
� >0.75 mJ @ 532-nm, up to 2 kHz, ~10 ps
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For Questions…
US subsidiary
High Q Laser (US), Inc.
118 Waltham Street
Watertown, MA 02472 / USA
Alex Lang
T +1 (617) 924 1441
Heinz Huber
T +43 5522 82 646 148
Headquarters
High Q Laser Innovation GmbH
Feldgut 9
A-6830 Rankweil / Austria
…please do not hesitate to contact our sales team:
High Q Laser & InnoLas – your partners for high-energy ps laser ranging systems