Laser Mode Control and Nonlinear Optics.
Abstract
Results are reported for work on coupled optical resonators, laser amplitude noise, phase locking, and nonlinear interactions. The propagation characteristics for low intensity pulses in the active gain medium of a laser have been studied both experimentally and theoretically. The pulse velocity is very nearly equal to the classical group velocity dw/dk, and is less than c for a gain medium and greater than c for a resonant absorber. In a self-locked laser there is a small gain fluctuation associated with the pulses which results in a fluctuating dispersion, and hence a smaller group velocity at the front of the pulse than at the back. This time-dependent group velocity helps to stabilize the shape. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1971
- Accession Number
- AD0893065
Entities
People
- J. A. Carruthers
- R. J. Collins
Organizations
- University of Minnesota