Laser Pulse Shaping Device Based on Fourier Synthesis using Optical Anisotropies produced by Spectral Hole Burning
Original Publication Date: 1980-Nov-01
Included in the Prior Art Database: 2005-Feb-14
A device 10 for shaping a laser pulse is shown in the drawing. The device 10 includes a polarized multifrequency laser source 12 which passes a laser beam into a medium 14 containing an inhomogeneously broadened optical absorption band into which multiple anisotropic holes of carefully selected frequency and depth have been burned. The birefringence and dichroism associated with these holes in the medium 14 introduce arbitrary and controllable changes in the polarization states of the frequency components of the multifrequency laser beam. A polarization analyzer 16 then selects spatial components of these frequency components with the desired relative phases and amplitudes and thus makes possible a generalized Fourier synthesis of laser pulses with arbitrary temporal profiles.