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Ultra-narrow Linewidth Lasers for Deployed Quantum Timing Applications

Award Information
Agency: National Aeronautics and Space Administration
Branch: N/A
Contract: 80NSSC21C0091
Agency Tracking Number: 211991
Amount: $124,970.00
Phase: Phase I
Program: STTR
Solicitation Topic Code: T8
Solicitation Number: STTR_21_P1
Timeline
Solicitation Year: 2021
Award Year: 2021
Award Start Date (Proposal Award Date): 2021-05-05
Award End Date (Contract End Date): 2022-06-19
Small Business Information
14998 W 6th Ave, Suite 700
Golden, CO 80401-5025
United States
DUNS: 112697136
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Kevin Knabe
 (303) 296-6766
 kknabe@vescent.com
Business Contact
 Ruth McCurry
Phone: (303) 296-6766
Email: rmccurry@vescent.com
Research Institution
 Lincoln Laboratory
 
244 Wood Street
Lexington, MA 00000-0000
United States

 Federally Funded R&D Center (FFRDC)
Abstract

Vescent Photonics, LLC in collaboration with the Massachusetts Institute of Technology Lincoln Laboratory proposes to develop a compact, chip-scale ultra-narrow linewidth laser for next-generation fieldable quantum sensor applications including optical atomic clocks, two-way time transfer, and precision inertial force and gravity sensing.nbsp; Atomic clocks represent the most precise and accurate instruments developed by scientists to date, offering measurement instabilities below 1x10-16 in a second.nbsp; This level of accuracy enables the application of optical atomic clocks to a whole host of precision sensors, including the measurement of weak gravitational fields in near-zero gravity as well as accurate positioning, navigation, and timing onboard a spacecraft. However, high performance optical atomic clocks currently only exist in laboratory settings due to requirements of an ultra-narrow-linewidth (lt; 10 Hz) interrogation laser used as an optical flywheel for the atomic clock transition. The solution presented here for the development of an ultra-narrow linewidth laser is an extension to the initial investigations of Dr. William Loh at MIT-LL with chip-scale stimulated Brillouin scattering (SBS) cavities. Recent measurements conducted by the MIT-LL team have shown that chip-based photonic waveguide cavities can support ultranarrow-linewidth lasers; this effort seeks to increase the integration of necessary chip-scale components to move towards a design where the entire laser system is contained on a chip-scale device. This effort will focus on a design for chip-based SBS laser cavity with integrated frequency doubling for direct laser light generation at 674 nm for a 88Sr+ optical atomic clock. Packaging will also be designed to integrate easily with the near-infrared pump laser at 1348 nm.

* Information listed above is at the time of submission. *

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