High Power, Broad Band Photonic Crystal Fiber Lasers Navy SBIR FY2010.2 Sol No.: Navy SBIR FY2010.2 Topic No.: N102-150 Topic Title: High Power, Broad Band Photonic Crystal Fiber Lasers Proposal No.: N102-150-1034 Firm: Agiltron Corporation 15 Cabot Road Woburn, Massachusetts 01801-1003 Contact: Yuanxin Shou Phone: (781) 935-6500 Web Site: http://www.agiltron.com Abstract: A high power, broad band fiber laser based on sumpercontinuum generation from photonic crystal fiber was proposed. A picosecond fiber Yb doped MOPA is used as pump source; A small core diameter and high air-fill-fraction in the cladding all silica based photonic crystal fiber with zero dispersion wavelength at ~1020 nm is designed to generate broad band supercontinuum; by adding the fiber mode expanded tips and integrate the in-liner polarizer, the thermal damage effect will be reduced and thus output power and laser system stability can be significantly increased. The proposed fiber laser is able to generate high output power (>50W), higher efficiency and wider spectrum bandwidth (500 to 1800 nm). In Phase I, we will fabricate a proof of concept breadboard fiber laser. Full system demonstration will be realized in the Phase II Program. Benefits: The success of the technology will extend the utilization of fiber lasers in military application including directed energy (DE) weapons, electro-optic jamming, target illumination, atmospheric transmission studies, broadband optical Communication, identification and LIDAR; and in commercial application including optical coherence tomography, frequency metrology, fluorescence lifetime imaging, and gas sensing, molecular spectroscopy, and nonlinear frequency conversion, medical surgery, and medical diagnostics equipment. Return