USA flag logo/image

An Official Website of the United States Government

Optical Frequency Comb-Based 10 GHz Microwave Oscillators

Award Information

Department of Defense
Award ID:
Program Year/Program:
2012 / SBIR
Agency Tracking Number:
Solicitation Year:
Solicitation Topic Code:
Solicitation Number:
Small Business Information
NP Photonics, Inc.
UA Science and Technology Park 9030 S. Rita Road, Suite #120 Tucson, AZ -
View profile »
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
Phase 1
Fiscal Year: 2012
Title: Optical Frequency Comb-Based 10 GHz Microwave Oscillators
Agency: DOD
Contract: W911QX-12-C-0065
Award Amount: $99,946.00


Low phase noise microwave oscillator based on the phase-coherent division of the optical signal are very compelling tool for many scientific applications such as high bandwidth precise timing distribution and synchronization, novel imaging techniques, precision metrology and spectroscopy, and radar system. This is because of the low absorption and scattering in the optical domain. The microwave generation in the phase coherent division approach is based upon high quality factor optical resonator and a frequency comb functioning as an optical-to-microwave divider. The advantage of the frequency comb technology to generate the microwave over the commercial counterpart is the versatility, portability, large bandwidth and unprecedented precision in the fractional frequency stability in both long term and short term time scale. NP Photonics specializes in highly doped, high gain per unit length specialty fibers. This glass and fiber waveguide technology allows for tailoring the optical gain, nonlinear response, and group-velocity dispersion of the active medium. This enables a simple, compact, robust, cost efficient and ultimately integration-compatible approach to develop high repetition rate (~10 GHz) fundamentally mode-locked Er/Yb-doped fiber lasers and cavity stabilized ultralow noise single frequency laser. At the end of phase II project, we propose to achieve 10 GHz microwave electrical signal with the frequency stability of 1 in part 10^17 at 1s of averaging time with exceptional frequency stability and spectral purity. The all-fiber based system will be developed to prototype level such that a packaged system could be transported and used for laboratory demonstration purposes.

Principal Investigator:

Rajesh Thapa
Laser Scientist
(520) 799-7494

Business Contact:

James T. Fountain
Director, Contract Administration
(520) 799-7424
Small Business Information at Submission:

NP Photonics, Inc.
UA Science and Technology Park 9030 S. Rita Road, Suite #120 Tucson, AZ -

EIN/Tax ID: 860999108
Number of Employees:
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No