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High Energy Laser Joint Technology Office (HEL-JTO) Recent Developments and Current Projects in HEL Technology October 9 th 2013 Distribution A, Cleared.

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Presentation on theme: "High Energy Laser Joint Technology Office (HEL-JTO) Recent Developments and Current Projects in HEL Technology October 9 th 2013 Distribution A, Cleared."— Presentation transcript:

1 High Energy Laser Joint Technology Office (HEL-JTO) Recent Developments and Current Projects in HEL Technology October 9 th 2013 Distribution A, Cleared for Public Release, 377ABW-2010-1318, 17 August 2010

2 Introduction to HEL-JTO JTO Technology Thrusts JTO Accelerator projects Approved for Public Release Outline

3 FY00 National Defense Authorization Act request to develop laser plan FY00 High Energy Laser Executive Review Panel chartered Approved for Public Release 3 HEL-JTO Formation JTO Charter: Advocate HEL technology development for DoD Coordinate among the Services and Agencies Develop t echnology investment strategy for DoD Manage a portfolio of government/industry/academia R&D projects A Coordinated Approach for HEL Weapons System Development

4 Approved for Public Release HEL-JTO Organization Army Representative Air Force Representative Tech Area, Contracts Monitor Tech Area, Contracts Monitor Tech Area, Contracts Monitor Technology Area Working Groups Contractor Technical and Administrative Support ASD (R&E) Operational Oversight Technology Council S&T Executives (Army, Navy, AF, MDA, DARPA, DTRA) Air Force S&T Executive Admin Oversight AFRL/RD Support Contracting Financial Public Affairs Security Director & Deputy Director Navy Representative MDA DARPA 4 Executive Assistant Budget/Finance

5 Fire Control Wavefront Sensor Diode Pump Heat Diode Pump Target Atmospheric Propagation Thermal Blooming Turbulence Laser Devices Solid State Gas Free Electron Beam Control Effects Power Conditioning Beam Conditioning & Adaptive Optics Thermal Management Beam Combining Example: Solid State Laser Pointing Illuminator Laser-Target Interaction Engagement & System Modeling Windows & Mirrors Advanced Concepts Approved for Public Release HEL-JTO Technology Thrust Area 5 Heat

6 High power fibers Beam combining techniques High Power Fiber Components Approved for Public Release 6 HEL-JTO Electric Laser Technology Fiber Dielectric Edge Mirrors (DEMs) Beam Combiner Stacked Oscillators Er-doped PCF High Power Laser Fiber Fusion Spliced All-Fiber Isolator

7 Ceramic gain materials Eye safer wavelength (slabs and fibers) Efficient and High Temperature diode arrays Approved for Public Release HEL-JTO Electric Laser Technology Transform lens Horizontal diode stack (3-bar) Output coupler grating 10%Yb:Lu2O3 ceramic Wavelength Beam Combining of Diode Bars VCSEL Array assembled on Patterned Surface Composite Heat Spreader 7

8 Solid State Laser Thrust SSL State-of-the-Art: (TRL 4 - 5) Efficient diode arrays – 50%=>70% diodes available High power fibers > 500W/fiber—combinable to KW’s Ceramic Slabs – 100KW at 18% wallplug efficiency Approved for Public Release 8

9 Gas Laser Thrust ATL: KW-Class Sealed Exhaust COIL for Tactical Applications Field Demonstrations Complete ABL: MW-Class COIL for Strategic Applications Field Demonstrations Completed Approved for Public Release 9

10 BC State-of-the-Art: (TRL 6) Disturbances −Atmospheric propagation Characterized to 100’s KM Optical Components −Windows/Coatings for KW/cm2 power levels Aimpoint Maintenance −Precision tracking −Jitter control −Platform-dependent Beam Control Thrust Approved for Public Release 10

11 Advanced Concepts Thrust Novel Concept Exploration Too “Risky” for Other Thrusts Includes: USPL, Materials, Beam Combination Advanced Concepts Thrust Approved for Public Release 11

12 Injectors and Cathodes –Development of high current and high charge low emittance injectors –Explore robust superconducting RF photocathode and thermionic injector technology –MW RF input couplers and booster cryomodules for the SRF injector. Megawatt Electron Beam Physics and Engineering: –Basic and applied research on the physics and technology relevant to the ONR INP FEL and MW class FEL future systems. –Studies of MW electron beam and optical beam physics and modeling and simulation for FEL cathodes, injectors, accelerators, and architectures need to conducted. Design and development of FEL components based on these studies. FEL Sensor Development: –Basic and applied research on the design, development, characterization and of THz sources and detectors Approved for Public Release JTO Thrust Areas for FEL Research 12

13 Capabilities: Provides effective and affordable point defense capability against: –Current / future surface and air threats –Future Anti-Ship Cruise Missiles and Tactical Ballistic Missiles –Swarm of small boats and asymmetric threats Provides discrimination and sensing capabilities greater than current Naval radar systems. Warfighter Impact: Low life cycle cost Multi-mission / scalable All electric for deep non-explosive magazine Approved for Public Release 13 Free Electron Laser

14 Reduce accelerator footprint and weight Develop High Power Optics Complete Room Temperature Injector Operation at High Current and High Energy Design Changes to Enable Shipboard Integration. Approved for Public Release 14 Technology Challenges for a MW Class FEL

15 (MRI) Fundamental Understanding of Optical Coatings and Novel Strategies for Power Scaling of High Power Free Electron Lasers (FELs) −Colorado State University (MRI) Collective Beam Dynamics and Coherent Radiation Production from High Brightness Electron Beams: Application to ERL-Based Free-electron Lasers −UCLA (MRI) Research In Technology For High Average Power FELs −University of Maryland (MRI) High-Brightness Cathodes for High-Power FELs −Vanderbilt University Approved for Public Release FY07 MRI Projects 15

16 Electro-Optical Sampling System for a High- Power ERL-Driven FEL –Colorado State University, Biedron Investigation of Beam Source and Collective Effects and Instabilities Relevant to FELs –Naval Postgraduate School Approved for Public Release FY12 MRI Grants 16

17 MW Class On–Axis RF Coupler for SRF injector for NPS –Niowave ( Selected for 2 nd year funding) Novel FEL Cavity Optic –JLab ( Selected for 2 nd year funding) Halo and Radiation Simulations Thru Undulators/ERL’s –STIO Approved for Public Release FY10 BAA Projects 17

18 Superconducting 700 MHz Multi-Spoke Injector for a MW class FEL –Niowave, Grimm Laser damage of optical coatings up to 2.5 microns for MW-class Free Electron Lasers –CSU, Menoni Modeling of High Average Power FEL Beamline Components through the Application of Fast, Accurate GPU-based Simulations –SAIC, Petillo Approved for Public Release FY12 BAA Efforts 18

19 Emittance and Bunch Shape of Diamond Amplified Pulsed Electron Sources –NRL High-Average Current Injectors for MW Class FELs –NRL Expanding Superconducting Radio-Frequency Photonic Band Gap Structures Accelerator Technology to 2.1 GHz –LANL Approved for Public Release FY11 S&A Projects 19

20 Nov 2012 – in operation in vault with radiation shielding Approved for Public Release The Mark I QW SRF Gun at NPS 20

21 Cathode assembly Cryogen feeds & Instrumentation RF coupler assembly Solenoid Magnetic shield 77K N 2 shield LHe tank Superconducting cavity Vacuum tank Approved for Public Release The Mark I QW SRF Gun 21

22 The Mark I was built and tested at Niowave, results published in 2011 Low-power testing was performed at NPS while awaiting safety approvals for high-power operation In Sept 2012 the first beam was generated In Oct 2012 the Mark I was moved into the vault In Nov 2012 the Mark I was operated in the vault at full field (750 kV gap voltage). With 70 mR/hr inside the vault, nothing detectable outside Approved for Public Release Mark I Progress and Status The Mark I is ready to be used as a platform for testing cathodes in a superconducting gun 22

23 Technology maturation is an enabler for high power FEL In previous years, JTO has supported the development of technologies and components to: −Understand and model the physics of Space-Charge, CSR, Halo, Beam Break-up, Cathode Surface Science and Optical Thin Films −Establish technical basis to support MW Class Shipboard FEL Approved for Public Release Summary


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