Coherent Optical Transients

Optical pulse shaping using optical coherent transients.

Using multiple temporally-overlapped, frequency offset and phase-tuned, linear frequency chirps, a new method of multi-GHz optical coherent transient optical pulse shaping and processing in inhomogeneously broadened rare-earth doped crystals is proposed. Using this technique with properly chirped laser sources, multi-GHz processing can be controlled with conventional low-bandwidth electronics a...

Accurate description of optical precursors and their relation to weak-field coherent optical transients

We study theoretically the propagation of a step-modulated optical field as it passes through a dispersive dielectric made up of a dilute collection of oscillators characterized by a single narrow-band resonance. The propagated field is given in terms of an integral of a Fourier type, which cannot be evaluated even for simple models of the dispersive dielectric. The fact that the oscillators ha...

Cosmic Explosions (optical Transients)

One of the principal motivations of wide-field and synoptic surveys is the search for and study of transients. By transients I mean those sources which arise from the background, are detected, and then fade away to oblivion. Transients in distant galaxies need to be sufficiently bright so as to be detectable and in almost all cases these transients are catastrophic events, marking the deaths of...

Broadband demonstrations of true-time delay using linear sideband chirped programming and optical coherent transients

Linear sideband chirped (LSC) programming is introduced as a means of configuring spatial-spectral holographic gratings for optical coherent transient processors. Similar to linear frequency chirped programming, LSC programming allows the use of broadband integrated electro-optic phase modulators to produce chirps instead of using elaborate broadband chirped lasers. This approach has several ad...

Theory of optical coherent transients including collisional effects: Application to an extended-pulse photon echo.