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Company & Product Capabilities. Pascal Rochat Managing Director / Founder rochat@spectratime.com. Four Product Lines. COMPONENTS (> 4000 units / year). SYSTEMS ( few hundred / year). iSync+ ®. iSync+ ®. iReference +®. iSource+ ®. iTest +®. Rb Oscillators.
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Company & Product Capabilities Pascal Rochat Managing Director / Founder rochat@spectratime.com
Four Product Lines COMPONENTS (> 4000 units / year) SYSTEMS ( few hundred / year) iSync+® iSync+® iReference+® iSource+® iTest+® Rb Oscillators Smart GPS Disciplined Clocks Rb/OCXO Clock Clock Instruments Portable Battlefield GPS Rb Pack 1ps Frequency Stability Comparator OCXO Rb GPS Disciplined MIL & Avionics Rb 12hrs Battery Waterproof MIL & Avionics Rb Oscillator Low Noise GPS Rb Clock 1ps Frequency Stability Comparator with integrated GPS & Rb Space Oscillators New! New! New! Smart Active Maser Clock Rb New! Low Noise Rb Clock 1.2E-13 @ 1sec -130dBc @ 1Hz OCXO 100fs Frequency Synthesizer New! HM
Introduction on Frequency and Time Standards: Atomic Energy Levels
Ground State Physics Choose atom with two ground states State selection Resonant excitation Detection
What is an Atomic clock ? Atomic resonance is intrinsically more stable than quartz local oscillator. “Natural” atomic microwave resonance frequency is synthesized from RF LO. Control Loop continuously steers LO frequency to atomic resonance. RF output (10 MHz) embodies stability of atomic resonance.
Space Products Space Crystal Oscillator Space Atomic Rb Clock Space Passive Maser Clock Crystal USO Passive Hydrogen Maser PP PHM Rubidium RAFS 100 g or 210 g Stability 1x10-12 @ 10s 3.3 kg Stability 5x10-14 @ 10’000s 18 kg Stability <1x10-14 @ 100’000s
Crystal Ultra Stable Oscillator (OCXO) Experience • GSAT-3 (India) 7 FM (Flight Model) • INVAP (USA) 4 FM • GSTB-V2 (ESA) 3 FM • GIOVE-B (ESA) 1 FM • GALILEO IOV (EU) 25 FM • IRNSS (India) 18 FM • GALILEO FOC (EU) 68 FM (under production) • GSAT (India) 4 FM • SIOM (China) 1 FM Total OCXO FM Delivered: 94 units (28 flying on 5 satellites)
Rubidium Atomic Frequency Standard (RAFS) Experience • GSTB-V2 (ESA) 2 FM • GIOVE-A (ESA) 2 FM • GIOVE-B (ESA) 2 FM • COMPASS (China) 21 FM • GAIA (ESA) 2 FM • GALILEO IOV (ESA) 8 FM • DFH (China) 13 FM • IRNSS (India) 27 FM • GALILEO FOC (EU) 44 FM (under production) Total RAFS FM Delivered: 93 units (41 flying on 23 satellites)
Passive Hydrogen Maser (PHM) Experience (sub-contractor of Selex Galileo) • GSTB-V2 (ESA) 1 FM • GIOVE-B (ESA) 1 FM • GALILEO IOV (ESA) 8 FM • GALILEO FOC (EU) 44 FM (under production) Total PHM FM Delivered: 30 units (9 units flying on 5 satellites)
SpT Clocks and GNSS Programs IRNSS Rubidium Cesium Cesium Rubidium Hydrogen Maser Rubidium Rubidium (1) Rubidium (2) Rubidium Rubidium
Spectratime Success Stories • Galileo GIOVE-A & B Satellites Launched in 2005 and 2008 • 4 RAFS, 1 PHM, 1 USO Galileo IOV Satellites Launched in 2011 and 2012 8 PHM, 8 RAFS, 24 USO IRNSS: 07.2013 • 17 Compass + DFH satellites from 2009 to 2012 • 29 RAFS Galileo FOC: 12.2013
Space Active Hydrogen Maser for ACES • Atomic Clock Ensemble in Space Mission on the International Space Station • Mission primary objectives High performance of space clocks (H+Cs) and T&F link; Comparison of Ground Clocks via ACES Microwave Link; Fundamental physics experiments • Secondary objectives + Scientific applications • EM Phase closed; EQM testing; PFM manufacturing, delivery 2014, and launch 2016 40 kg Stability <1.5x10-13@ 1s