Spatiotemporal Dynamics of Multimode Optical Pulse Propagation: Ultrabroadband Measurement Capability
Abstract
Nonlinear propagation of optical pulses in multimode waveguides is a fertile scientificdirection that is largely unexplored experimentally. The multimode environment allows controlledinvestigation of spatiotemporal aspects of nonlinear waves. We propose theoretical andexperimental investigations of multimode nonlinear pulse propagation, with a focus on solitonformation and wave instabilities. Optical spectra that span several octaves in frequency can begenerated through recently-identified spatiotemporal instabilities in multimode wave propagation.Funds are requested for laser that will supply microjoule-energy and sub-picosecond pulses at1550 nm, where silica fiber has anomalous group-velocity dispersion. This laser will complementexisting pulsed lasers at 520 nm and 1050 nm. Funds are also requested for a monochromator anddetectors that will allow measurement of spectra between 300 nm in the ultraviolet and 5000 nmin the mid-infrared. Combined with home-built apparatus, this device will also enablemeasurements of spatial profiles of optical fields after propagation in multimode waveguides, overthe same wavelength range. The laser and monochromator will be incorporated in an existingexperimental setup, and will greatly enhance our ability to excite and measure new nonlinear wavephenomena. The requested instrumentation will be used in a project funded by the Office of NavalResearch through the MURI Program.Through the underlying nonlinear wave equations, the concepts developed in this project willbear on the fundamental science of nonlinear dynamical systems ranging from fluids and plasmasto condensation of classical and quantum waves. They will also be pertinent to applications suchas high-power laser design and telecommunications.Students working on this project will gain broad scientific and technical knowledge. Studentsin our group do theoretical calculations as well as experiments. Their training includes exposureto fundamental concepts of nonlinear dynamics, specific features of short-pulse propagation, andpractical aspects of optical technology.
Document Details
- Document Type
- DoD Grant Award
- Publication Date
- Sep 30, 2016
- Source ID
- N000141613027
Entities
People
- Columbia Warren
Organizations
- Cornell University
- Office of Naval Research
- United States Navy