Pulse shaping fiber laser for high rate space telecommunications

In NASA?s SBIR solicitation S4.06, a pulsed fiber laser requires a weight of smaller than 1kg, high pulse repetition rate, <30 ns pulse width, 1-3 W output power at 1.5 micron region, and overall efficiency higher than 20%. PolarOnyx proposes a novel approach targeting to resolve the issues of pulse distortion and nonlinear effects such as stimulated Brillouin scattering (SBS), SPM, and stimulated Raman scattering (SRS) by employing our proprietary technologies in specialty fibers and mode-locked fiber lasers. The high power conversion efficiency is achieved by optimization of the EDF. The overall fiber cavity is designed to compensate nonlinear effects and signal chirp caused by the modulation and obtain a quasi-transform limited pulse shape. In Phase I term, PolarOnyx will demonstrate the design in experiment.