A Compact Femtosecond Pulse Expander with Tunable Expanding Ratio and Wavelength

Award Information
Agency: Department of Defense
Branch: Defense Advanced Research Projects Agency
Contract: W31P4Q-09-C-0478
Agency Tracking Number: 08SB2-0071
Amount: $98,997.00
Phase: Phase I
Program: SBIR
Awards Year: 2009
Solicitation Year: 2008
Solicitation Topic Code: SB082-004
Solicitation Number: 2008.2
Small Business Information
Luna Innovations Incorporated
1 Riverside Circle Suite 400, Roanoke, VA, 24016
DUNS: 627132913
HUBZone Owned: N
Woman Owned: N
Socially and Economically Disadvantaged: N
Principal Investigator
 Guoqing Shen
 Principal Investigator
 (540) 769-8400
 submissions301@lunainnovations.com
Business Contact
 Michael Pruzan
Title: Director of Contracts
Phone: (540) 769-8430
Email: submissions@lunainnovations.com
Research Institution
N/A
Abstract
A major problem of existing pulse expanders is that each of them was designed for a certain expanding ratio at a certain wavelength. When the laser wavelength or pulse duration is changed the optical components of the systems require precise readjustment, which are extremely inconvenient and time consuming. Luna proposes a novel approach, which is designed specifically for easy alignment and insensitivity to misalignment to achieve the desired pulse duration and wavelength changes, and the approach avoids the use of complex and expansive optical components to reduce complexity and cost. This proposed pulse expander can expand an ultrashort pulse to a longer duration pulse in a time range from several hundred femtoseconds to nanoseconds with adjustable wavelength and reshaping capability. In Phase I, a complete theoretical model of the pulse expander will be developed and will be used to guide future implementation of a prototype during Phase II. The performance of the prototype will be characterized and optimized during Phase III. A complete system is expected to be produced and delivered by the end of Phase III.

* information listed above is at the time of submission.

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