Mid-Infrared Laser Beam Combining Module for Infrared Countermeasure Application

The objective of this proposal is to develop highly reliable, low cost and small package size mid-infrared diode laser beam combining module (LBCM) for integration into various military applications, including infrared countermeasure systems (IRCMs), remote chemical detection and sensing, as well as free-space communications. The LBCM will offer reduced size, weight, and power consumption required for integration into a variety of systems suitable for use on manned or unmanned carriers. The LBCM will be designed and optimized for manufacturing to assure high yield cost-effective volume production. During SBIR Phase I, a detailed trade-off analysis of the alternative state of the art beam combining techniques applied to mid-IR laser sources will be provided. The analysis outcome will serve to design a beam combining module that will produce a single high power output beam with high directionality while minimizing optical losses and reducing the size, weight and power (SWaP), as well as improving the wall-plug efficiency. Multidimensional tolerance analysis and design optimization of the LBCM will be performed to assure highest yields during volume production. Upon completion of SBIR Phase I, a final report will be compiled, and the LBCM design will become available for fabrication & evaluation during the following SBIR Phase II.