Composite-cavity ring laser for missile defense coherent LADAR

Award Information
Agency:
Department of Defense
Amount:
$99,935.00
Program:
SBIR
Contract:
HQ0006-05-C-7156
Solitcitation Year:
2004
Solicitation Number:
2004.4
Branch:
Missile Defense Agency
Award Year:
2005
Phase:
Phase I
Agency Tracking Number:
044-1548
Solicitation Topic Code:
MDA04-177
Small Business Information
PHYSICAL SCIENCES, INC.
20 New England Business Center, Andover, MA, 01810
Hubzone Owned:
N
Woman Owned:
N
Socially and Economically Disadvantaged:
N
Duns:
073800062
Principal Investigator
 John Flint
 Principal Research Scientist
 (781) 275-9533
 flint@qpeak.com
Business Contact
 B. Green
Title: President, R&D Operations
Phone: (978) 689-0003
Email: green@psicorp.com
Research Institution
N/A
Abstract
The Q-Peak Division of Physical Sciences Inc. proposes to develop an innovative composite-cavity ring laser that will improve significantly on the performance of non-planar ring oscillators (NPRO), without requiring an amplifier, and which is amenable to space qualification or other high-reliability applications through its multiply-redundant pumping scheme. Our open design with individual optical components has several advantages over the monolithic NPRO, starting with robust unidirectional oscillation due to its TGG/crystal quartz optical diode, enabling high-power operation (multi-Watts)and operation with Nd:YVO4 or YLF (both birefringent materials not amenable to out-of-plane designs); low pump-induced frequency noise because the laser crystal makes up a small fraction of the total cavity length (further enhanced by using YLF); and excellent passive thermal stability due to making the resonator from low-expansion materials, further enhanced with re-entrant mirror mounting. In addition, the laser can be frequency tuned or modulated in a variety of ways, over a wide range of bandwidths and total frequency excursions. In Phase I we will compare the performance of two laser hosts in a partially-ruggedized version of our ring-laser design and develop and demonstrate several frequency-tuning approaches. The designs will be suitable for construction and delivery under a potential follow-on effort.

* information listed above is at the time of submission.

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