4622

Chip-Scale Atomic Clock for Frequency, Wavelength, and Time Referencing Applications

Levy Uriel, HUJI, Faculty of Science, Applied Physics Department

 

Categories

Nanotechnology, Micro & Opto Electronics

Keywords

Atomic clock, frequency, wavelength, gas vapor, automotive, security, trading, exploration

Current development stage

TRL3 - experimental proof of concept;

Seeking for seed investment

 The Application

Precise measurement of time is essential for many aspects of modern technology. The ubiquitous need for a stable frequency or wavelength reference has major implications for applications related to navigation, communication, positioning, exploration and security. The typical quartz oscillators are susceptible to environmental factors and suffer from signal drift and so are unacceptable for time-critical applications. Atomic clocks address this by sampling the oscillation of atoms yet there are few miniaturized clocks which offer low power consumption, low cost, small footprint and high enough accuracy.

 

Our Technology

We propose a CMOS-compatible chip-scale atomic clock based on the use of integrated optics fully integrated with a vapor cell. This design incorporates optical waveguides, a hot vapor cell, photo-detector and electronics on the same small form-factor chip.

4622.jpg 

Figure 1 Ladder Transition –Telecom Operation  Resonant Two Photon Absorption At 1529 Nm

 

Our Innovation

Our chip-scale atomic clock has a very small form factor, has low power consumption and can be integrated on a chip with other functionalities.

 

The Opportunity

The need for atomic-level precision time-keeping for consumer products is clear, particularly in areas where mission-critical satellite-independent frequency referencing is essential. Featured applications include vehicle communication in level 5 autonomous driving, UAVs, and defense communication. While these likely will be the early use cases, affordable chip-scale CMOS-compatible atomic clocks will open up a massive opportunity for consumer products.  

 

 

Contact for more information:

Matt Zarek
SCOUTING, IDEATION, AND TECHNOLOGY EVALUATION
+972-2-6586686
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