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US 2024/0184041 A1Published application
Laser Ultrastable Photonics with Integrated Nonlinearity for Extended Stability
AssigneesThe Regents of the University of California, United States Government, as represented by the Secretary of Commerce
InventorsDaniel J. Blumenthal, Scott Papp
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Abstract
Optical photonic integrated optical clocks on photonic integrated circuits are described. The optical clocks can provide the timing stability of atomic clocks at ultra-low size and power. The optical clocks are be fabricated using CMOS foundry fabrication processes.
Claims15
An optical clock comprising:
- a first photonic chip comprising a laser source;
- a second photonic chip comprising a microcomb photonic integrated circuit (PIC) and a second harmonic generation, wherein the second chip is connected with the first chip via a first photonic wire bond;
- a third photonic chip comprising an optical reference PIC that supports at least two modes generated from the second photonic chip, wherein the third chip is connected with the second chip via a second photonic wire bond;
- and
- a fourth photonic chip comprising a PIC and an electronic circuitry to stabilize a plurality of components on the first, second and third photonic chips and generate a stable reference signal, wherein the fourth chip is connected with the third chip via a third photonic wire bond;
- wherein the optical clock stabilizes two different wavelengths from 405 nm to 2350 nm to a desired optical frequency.
3 more elements
Dependencies are inferred from the claim text.