Chaotic LIDAR for Naval Applications
Abstract
Significant progress has been made in the demonstration of a wide bandwidth green fiber laser. Previous reports have detailed the generation of wide bandwidth chaotic signals using fiber ring lasers. Amplification of these signals has also been reported, to power levels that allow frequency doubling from infrared (IR, 1064 nm) to green (532 nm). A free space optical system has been previously reported that performed frequency doubling of a continuous wave (CW) 1064 nm source. We now report integration of a wide bandwidth chaotic signal generator, two amplifier stages, and a frequency doubling arrangement. Together, these components comprise a wideband chaotic signal generator at 532 nm which was a significant goal of the project. We also report progress in simulation of the fiber laser and amplifiers. Previous reports presented steady-state predictions of signal and pump power in the fiber, but we now describe a simulation that gives dynamic signal, pump, and spontaneous emission powers. This simulation gives instantaneous powers at all wavelengths throughout the entire fiber. This allows amplifier simulations not only for CW inputs (as before), but also of highly modulated signals of interest for ranging and imaging (e.g. chaotic wideband). The same simulation methodology will allow simulation of our novel fiber lasers for predictive design aid, and better understanding of how parameters might be optimized to tailor the output signal for specific applications.
Document Details
- Document Type
- Technical Report
- Publication Date
- Dec 31, 2012
- Accession Number
- ADA618852
Entities
People
- William D. Jemison
Organizations
- Clarkson University