High power mid-IR fiber combiner

Period of Performance: 08/21/2015 - 02/20/2016


Phase 1 SBIR

Recipient Firm

Q Peak, Inc.
135 South Road Array
Bedford, MA 01730
Principal Investigator


Infrared countermeasures (IRCM) designed to prevent missiles from reaching their target are standard equipment on military aircraft. In recent years, missile guidance systems have become increasingly sophisticated. In order to counter the increasing threat from infrared missile seekers, multi-wavelength (2 - 5 ??m), high power (up to 50 W) mid-infrared lasers will be required in next generation IRCM systems. However, current mid-IR lasers, such as quantum cascade lasers, can only provide up to 10 W of output power. A new optical fiber combiner to combine mid-infrared lasers of different wavelengths will be explored. Q-Peak Inc. proposes to develop an innovative, high power, low insertion loss, compact, chalcogenide fiber-based mid-infrared fiber combiner for the amalgamation of different-wavelength (2 - 5 ??m) mid-infrared lasers for next-generation IRCM applications.