Broadband and efficient fiber-optic and free-space laser beam homogenizer
Navy SBIR FY2018.1


Sol No.: Navy SBIR FY2018.1
Topic No.: N181-011
Topic Title: Broadband and efficient fiber-optic and free-space laser beam homogenizer
Proposal No.: N181-011-0393
Firm: Physical Sciences Inc.
20 New England Business Center
Andover, Massachusetts 1810
Contact: David Oakes
Phone: (978) 689-0003
Web Site: http://www.psicorp.com
Abstract: Physical Sciences Inc. proposes to develop an efficient, broadband (0.9 É?" 6.0 Aśm) beam homogenizer capable or transforming single and multi-mode Gaussian and non-Gaussian beams into a uniform, top-hat profile. During Phase I, PSI will assess single and dual element optical designs for the homogenizer based upon light shaping diffuser and compound parabolic reflector components, comparing measured and anticipated performance to key performance parameters (KPPs) developed with input from Navy representatives. Preliminary Phase II prototype designs addressing the full system KPPs (SWAP) will be developed based upon promising optical designs and reviewed with Navy representatives. During a proposed Phase I Option, feedback from the preliminary prototype design review will be used to finalize the design of the Phase II prototype and detailed machine drawings will be prepared to enable rapid development of the technology at the start of the Phase II program. The prototype designs will be realized in the Phase II program and tested in applications of interest to the Navy. The technology readiness level (TRL) of the beam homogenizer at the end of the anticipated Phase II program is expected to be TRL=5.
Benefits: A successful SBIR effort will provide the Navy with an advanced beam homogenizer technology operating from 0.9 É?" 6.0 Aśm that will efficiently (90+%) transform single and multi-mode Gaussian and non-Gaussian beams into a uniform top-hat profile beam. The homogenizer will increase the effective range of number of systems of importance to the Navy and the wider DoD: IRCM, battlefield illumination and Geiger mode (flash) LIDAR. In addition, the broadband homogenizer technology will have commercial applications ranging from additive manufacturing to scientific research.

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