Laser Mode Control and Nonlinear Optics.
Final rept. 1 Aug 68-30 Nov 71,
MINNESOTA UNIV MINNEAPOLIS DEPT OF ELECTRICAL ENGINEERING
Pagination or Media Count:
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 dwdk, 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
- Lasers and Masers