Compare 21 Atomic & Quantum Clocks from 12 vendors including AccuBeat, AOSense, Frequency Electronics, Infleqtion, Microchip Technology, Morion and 6 more. Filter and compare by Sensor, Measures, Quantum Principle, Frequency Stability, Long-term Stability and 1 more. Request a quote directly from the manufacturer on QHUB.
5071B Cesium Primary Frequency Standard — Microchip Technology Sensor: 5071B (Cesium Clock) · Measures: Time / Frequency · Quantum Principle: Hyperfine transition of Cs-133 beam · Long-term Stability: ≤1.0×10⁻¹⁴ averaging times ≥5 days (high-performance)
AOS-CAFS-1-X — AOSense Sensor: Cold‑Atom Frequency Standard AOS‑CAFS‑1‑X · Measures: Time / Frequency Atomic transitions · Quantum Principle: Laser‑cooled 87Rb Hyperfine transitions · Operating Temperature: 0-50 °C
AR133-00 — AccuBeat Sensor: Rubidium Standard AR133-00 · Measures: Frequency Allan deviation · Quantum Principle: Hyperfine transition Rb-87 · Frequency Stability: 1e-12 @ 1000s (typical)
AR133-03 — AccuBeat Sensor: Rubidium Frequency Standard AR133-03 · Measures: Frequency Allan deviation · Quantum Principle: Hyperfine transition Rb-87 · Form Factor: 77 × 77 × 49.65 mm mm
FE-5650A — Morion Sensor: FE-5650A (Rb Frequency Standard) · Measures: Time / Frequency · Quantum Principle: Hyperfine transition of Rb-87 · Size: 37×77×76 mm
FE-5680A — Morion Sensor: FE-5680A (Rb Frequency Standard) · Measures: Time / Frequency · Quantum Principle: Hyperfine transition of Rb-87 · Size: 25×102×139 mm
LN-CSAC-SA65 — Microchip Technology Sensor: SA65-LN Low-Noise CSAC · Measures: Time / Frequency · Quantum Principle: Hyperfine Cs-133 transition · Time to Lock: <120 s
MHM-2020 Active Hydrogen Maser — Microchip Technology Sensor: MHM-2020 (Active Hydrogen Maser) · Measures: Time / Frequency · Quantum Principle: Hydrogen hyperfine transition · Frequency Stability: 1×10⁻¹⁵ Allan deviation (τ=1000s)
mRO-50 Ruggedized Rubidium Oscillator — Safran Navigation & Timing Sensor: Ruggedized Rubidium Oscillator mRO-50 · Measures: Time / Frequency Atomic transitions · Quantum Principle: Atomic transition in 85Rb isotope VCXO locked to ground state · Form Factor: 50.8 x 50.8 x 19.5 mm
MuClock — Muquans Sensor: MuClock cold-atom microwave clock · Measures: Time / frequency · Quantum Principle: Microwave Ramsey interrogation of laser-cooled ⁸⁷Rb atoms · Mass: 135 kg
NAC2 Nano Atomic — AccuBeat Sensor: Nano Atomic Clock NAC2 Nano Atomic · Measures: Frequency Allan deviation · Quantum Principle: Hyperfine transition Rb-87 · Allan deviation: <1e-11 @ 1000s s
OSA 3200 Optical Cesium Clock — Oscilloquartz SA Sensor: OSA 3200 Optical Cesium Clock Optical Pumping · Measures: Time/Frequency Enhanced cesium standard · Quantum Principle: Optical pumping of Cs-133 atoms laser excitation, 100× more atoms · Frequency Stability: Up to 10× greater than legacy magnetic cesium
OSA 3235B Cesium Clock — Oscilloquartz SA Sensor: OSA 3235B Cesium Beam Clock Magnetic · Measures: Time/Frequency Primary frequency standard · Quantum Principle: Hyperfine microwave transition of Cs-133 9,192,631,770 Hz · Warm-up Time: 45 minutes at 25°C minutes
RFS-M102 — Morion Sensor: RFS-M102 (Rb Frequency Std.) · Measures: Time / Frequency · Quantum Principle: Hyperfine transition of Rb-87 · Frequency Stability: <5×10⁻¹¹ Allan deviation (typ. 2×10⁻¹¹)
SA65 Chip Scale Atomic Clock — Microchip Technology Sensor: SA65 CSAC (Chip-Scale Clock) · Measures: Time / Frequency · Quantum Principle: Hyperfine Cs-133 transition · Frequency Stability: 5×10⁻¹¹ Allan deviation (τ=1s)
SRO-100 Rubidium Atomic Clock — Safran Navigation & Timing Sensor: GPS/GNSS-disciplined Rubidium Oscillator SRO-100 · Measures: Time / Frequency GPS/GNSS synchronized · Quantum Principle: Hyperfine transition of Rb-87 isotope GPS/GNSS disciplined · Size: 101.6 x 70.61 x 25.4 mm (4" x 2.78" x 1")
TEMPO — QuantX Labs Sensor: Compact Rubidium Optical Clock TEMPO · Measures: Time / Frequency Allan deviation · Quantum Principle: Two-photon spectroscopy of 5S₁/₂ → 5D₅/₂ transition in ⁸⁷Rb 778.1 nm counter-propagating lasers · Weight: <50 kg
Tiqker Prime — Infleqtion Sensor: Tiqker Prime Optical Atomic Clock · Measures: Time / Frequency Allan deviation · Quantum Principle: Two-photon spectroscopy of 5S₁/₂ → 5D₅/₂ transition in ⁸⁷Rb 778.1 nm counter-propagating lasers · Weight: <30 kg kg