At QuPrayog, we're building indigenous, mission-ready atomic clocks: from compact CPT and chip-scale references to next-generation optical clocks; so India's Space and Navigation systems no longer depend on imported timing hardware.

CPT Rubidium Atomic Clock
Built on coherent population trapping, our CPT rubidium clock delivers atomic-grade stability without a microwave cavity. Precision built for onboard PNT reference, SAR time-tagging, and ground-station time transfer
Target ADEV: ≤ 3×10⁻¹¹ at 1 s
Atomic-grade precision
Drift: ≤ 5×10⁻¹¹/month
Stays locked for the long haul
Holdover: <1 µs/day
Keeps time when GNSS is lost
Outputs: 10 MHz · 1 PPS
Rack-scale, drop-in ready

Miniature Atomic Clock
Atomic-grade timing, now small enough to hold in your hand. Our Miniature Atomic Clock brings CPT precision down to 50 cm³, so even the tightest payloads can carry a reference that holds time when GNSS can't.
Target ADEV ≤ 5×10⁻¹¹ at 1 s
Atomic-grade precision
Size: 50 cm³
Atomic timing where racks can't fit
Holdover: <1 µs/day
Keeps time when GNSS is lost
Drift: ≤ 2.5×10⁻¹¹/day
Stays on time without GNSS

Optical Atomic Clock
Optical atomic clocks are where we're headed next. Precision built to hold steady when GPS goes dark, and to keep distributed systems perfectly synchronized. We're building towards applications precision timing has never unlocked before. Watch this space.
Precision Timing Consultancy
Choosing, integrating, and deploying a precision clock is rarely straightforward; the right approach depends on your mission's stability, power, and environmental constraints, and getting it wrong can be costly.
QuPrayog brings the same expertise we use to build our own clocks to help you select the right hardware, architect its integration, solve deployment challenges, and design the algorithms behind advanced systems.
Get in touch today.

