Low-SWAP High Power Fiber Isolator
Navy SBIR FY2018.1

Sol No.: Navy SBIR FY2018.1
Topic No.: N181-080
Topic Title: Low-SWAP High Power Fiber Isolator
Proposal No.: N181-080-0544
Firm: Q Peak, Inc.
135 South Road
Bedford, Massachusetts 1730
Contact: Jeffrey Perkins
Phone: (781) 275-9535
Web Site: http://www.qpeak.com
Abstract: Q-Peak proposes a novel high-power isolator optical train, leveraging several developed innovations into a robust package to allow a significant power and performance increase as compared to current fiber isolators. Specifically, the integration of a fiber collimator and mode-stripper provides a path to extremely high forward powers, while the utilization of large-aperture, improved material Faraday rotator, with a low-SWAP optical train, allows for large backwards powers before the onset of thermo-optical effects.
Benefits: Q-Peak will immediately leverage the technology described here into direct fiber laser application. In addition, the low loss, high power fiber isolator technology described in the proposal would significantly reduce system risks by allowing distribution of thermal loading in fiber laser systems. Q-Peak will license part of the resulting isolator technology into the commercial space, in conjunction with Thorlabs, Inc.