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Lockheed Martin — 2018 Photonics Summit
15 slides from Lockheed Martin's conference presentation, Nov 7, 2018
Slide 1: RF Analog Photonic Applications
RF ANALOG PHOTONIC APPLICATIONS 2018 PHOTONICS SUMMIT San Jose, CA November 7, 2018 Rick Stevens Spectrum Systems Lab, Lockheed Martin Advanced Technology Labs LOCKHEED MARTIN PROPRIETARY INFORMATION © 2018 Lockheed Martin Corporation
Slide 2: Optics and Photonics Permeate Defense
OPTICS AND PHOTONICS PERMEATE DEFENSE • Imaging and sensing systems • LIDAR/Laser Radar (LADAR) • Vis/EO/IR imagers • Information transfer • Free space laser communications • Fiber network backbones on platforms and terrestrial • Analog RF • High speed digital networks • Weapons • Directed energy la
Slide 3: Military Aircraft Mission Systems
MILITARY AIRCRAFT MISSION SYSTEMS Mission Systems Sensors Cockpit Displays Auxiliary Mass Storage Remote Interface Units Other Subsystems Photonics Mission System Backbone PHOTONICS ENABLES Vehicle Mgmt Aircraft / Portable Memory Device (AMD/PMD) Comm, Nav, CAPABILITIES THAT OTHERWISE COUL
Slide 4: Fiber Optics Data Backbone
FIBER OPTICS DATA BACKBONE Sensor B Fiber -Optics are: •High bandwidth •Immune to Electromagnetic System B Interference (EMI) •Non-conductive Sensor A Fiber-Optics enables: System A •Reduced cabling size •Reduced cabling weight Fiber-Optic Backbone •Increase data rate •Advanced interconnects Access
Slide 5: RF Over Fiber
RF OVER FIBER • RF over Fiber benefits • Improved distance independence (reduced loss/distance) • Reduced CSWaP vs. discrete solution • Wider bandwidth • EMI immunity • Higher reliability • Current Coax implementations: • Limited in distance due to losses • Limited in bandwidth due to losses • Requi
Slide 6: RF Over Fiber Block Diagram
RF OVER FIBER BLOCK DIAGRAM Interconnects and additional fiber optic cable as needed Fiber Optic Optical Fiber Optic RF Input Modulator Cable Interconnect Cable LNA, optional P/N -01 or -03 Photodiode RF Output Laser TEC Controller: Controller: Diode bias Laser bias, modulator bias, temperature ctrl
Slide 7: RF Over Fiber Discrete vs. Integrated Solution Packaging
RF OVER FIBER DISCRETE VS. INTEGRATED SOLUTION PACKAGING Advanced Technology Laboratories © 2018 Lockheed Martin Corporation 7
Slide 8: RF Over Fiber Discrete vs. Integrated Solution Performance
RF OVER FIBER DISCRETE VS. INTEGRATED SOLUTION PERFORMANCE Integrated Discrete Component Parameter Unit Components Current Near Term Long Term Power dBm 20 10 20 23 Laser RIN dB/Hz -155 -145 -160 -170 Vpi (@ 1 GHz) V 5 5 4 2 MZM Vpi (@ 18 GHz) V 6 8 6 3 Excess Loss dB 4.5 6 4 2 Responsivity A/W 0.8
Slide 9: RF Analog Photonic Link Using Integrated Photonics
RF ANALOG PHOTONIC LINK USING INTEGRATED PHOTONICS Advanced Technology Laboratories © 2018 Lockheed Martin Corporation 9
Slide 10: Integrated Photonics – Leveraging AIM Photonics
INTEGRATED PHOTONICS – LEVERAGING AIM PHOTONICS RF over Fiber Implementation Advanced Technology Laboratories © 2018 Lockheed Martin Corporation 10
Slide 11: Applications of Optical Fibers
APPLICATIONS OF OPTICAL FIBERS • Long link spans where coax cable is too costly and/or too heavy. • Very high RF frequencies or wide bandwidths where the coaxial cable losses are excessive. RF over Fiber Cable 2.92mm RF Connector • Cases where the aircraft thermal or mechanical environment causes di
Slide 12: Operating Environment
OPERATING ENVIRONMENT Must perform in… Harsh Environments Extreme Conditions Advanced Technology Laboratories © 2018 Lockheed Martin Corporation 12
Slide 13: RF Over Fiber Implementation Evolution
RF OVER FIBER IMPLEMENTATION EVOLUTION LO Coaxial Cable RF RF IF ADC LD Digital LD CNTR CNTR LO Fiber Cable (Analog) RF MOD PD RF IF ADC LD Digital LD CNTR CNTR LO Fiber Cable (Analog) RF MOD PD RF IF ADC LD Digital LD CNTR LO CNTR Fiber Cable (Digital) RF MOD IF PD ADC LD Digital Advanced Technolog
Slide 14: Questions?
QUESTIONS? Advanced Technology Laboratories © 2018 Lockheed Martin Corporation 14
Slide 15: Lockheed Martin
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