Title:
Pulse compression and dispersion control in ultrafast optics
Pulse compression and dispersion control in ultrafast optics
Author(s)
Chauhan, Vikrant Chauhan Kumar
Advisor(s)
Trebino, Rick
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Abstract
Pulse Compression and Dispersion Control in Ultrafast Optics
Vikrant K. Chauhan
116 Pages
Directed by Dr. Rick P. Trebino
In this thesis, we introduced novel pulse compressors that are easy to align and which also compensate for higher order dispersion terms. They use a single dispersive element or a combination of dispersive elements in single-element-geometry. They solve the problem of extra-cavity pulse compression by providing control of the pulse width in almost all of the experiments performed using ultrashort pulses, and they even compensate for higher order dispersion. We performed full spatiotemporal characterization of these compressors and demonstrated their performance. We also developed a theoretical simulation of pulse compressors which is based on a matrix based formalism. It models the full spatiotemporal characteristics of any dispersion control system. We also introduced a simple equation, in its most general form, to relate the total dispersion and magnification introduced by an arbitrary sequence of dispersive devices. Pulse compressor characterization was done using interferometric measurements in the experiments presented in this work, but we also developed a method to measure pulses that uses polarization gating FROG for measuring two unknown pulses. In the last part, we briefly discuss the designing of a high energy chirped pulse amplification system.
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Date Issued
2011-01-22
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Dissertation