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Title: Method and apparatus for measuring the intensity and phase of an ultrashort light pulse

Abstract

The pulse shape I(t) and phase evolution x(t) of ultrashort light pulses are obtained using an instantaneously responding nonlinear optical medium to form a signal pulse. A light pulse, such a laser pulse, is split into a gate pulse and a probe pulse, where the gate pulse is delayed relative to the probe pulse. The gate pulse and the probe pulse are combined within an instantaneously responding optical medium to form a signal pulse functionally related to a temporal slice of the gate pulse corresponding to the time delay of the probe pulse. The signal pulse is then input to a wavelength-selective device to output pulse field information comprising intensity vs. frequency for a first value of the time delay. The time delay is varied over a range of values effective to yield an intensity plot of signal intensity vs. wavelength and delay. In one embodiment, the beams are overlapped at an angle so that a selected range of delay times is within the intersection to produce a simultaneous output over the time delays of interest.

Inventors:
 [1];  [2]
  1. Santa Fe, NM
  2. Livermore, CA
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
OSTI Identifier:
871564
Patent Number(s):
US 5754292
Assignee:
Regents of University of California (Los Alamos, NM); Sandia National Laboratory (Los Alamos, NM)
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; apparatus; measuring; intensity; phase; ultrashort; light; pulse; shape; evolution; pulses; obtained; instantaneously; responding; nonlinear; optical; medium; form; signal; laser; split; gate; probe; delayed; relative; combined; functionally; related; temporal; slice; corresponding; time; delay; input; wavelength-selective; device; output; field; information; comprising; vs; frequency; value; varied; range; values; effective; yield; plot; wavelength; embodiment; beams; overlapped; angle; selected; times; intersection; produce; simultaneous; delays; probe pulse; selected range; time delays; functionally related; pulse shape; time delay; light pulses; output pulse; laser pulse; nonlinear optical; light pulse; delay time; optical medium; gate pulse; signal pulse; ultrashort light; delay times; pulse field; responding optical; nonlinear optic; /356/

Citation Formats

Kane, Daniel J, and Trebino, Rick P. Method and apparatus for measuring the intensity and phase of an ultrashort light pulse. United States: N. p., 1998. Web.
Kane, Daniel J, & Trebino, Rick P. Method and apparatus for measuring the intensity and phase of an ultrashort light pulse. United States.
Kane, Daniel J, and Trebino, Rick P. 1998. "Method and apparatus for measuring the intensity and phase of an ultrashort light pulse". United States. https://www.osti.gov/servlets/purl/871564.
@article{osti_871564,
title = {Method and apparatus for measuring the intensity and phase of an ultrashort light pulse},
author = {Kane, Daniel J and Trebino, Rick P},
abstractNote = {The pulse shape I(t) and phase evolution x(t) of ultrashort light pulses are obtained using an instantaneously responding nonlinear optical medium to form a signal pulse. A light pulse, such a laser pulse, is split into a gate pulse and a probe pulse, where the gate pulse is delayed relative to the probe pulse. The gate pulse and the probe pulse are combined within an instantaneously responding optical medium to form a signal pulse functionally related to a temporal slice of the gate pulse corresponding to the time delay of the probe pulse. The signal pulse is then input to a wavelength-selective device to output pulse field information comprising intensity vs. frequency for a first value of the time delay. The time delay is varied over a range of values effective to yield an intensity plot of signal intensity vs. wavelength and delay. In one embodiment, the beams are overlapped at an angle so that a selected range of delay times is within the intersection to produce a simultaneous output over the time delays of interest.},
doi = {},
url = {https://www.osti.gov/biblio/871564}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1998},
month = {1}
}

Works referenced in this record:

Femtosecond pulse phase measurement by spectrally resolved up-conversion: application to continuum compression
journal, January 1992


Fourth-order partial-coherence effects in the formation of integrated-intensity gratings with pulsed light sources
journal, January 1986


Single-shot characterization of ultrashort light pulses
journal, August 1991


Direct determination of the amplitude and the phase of femtosecond light pulses
journal, January 1991


Chirp and self-phase modulation in induced-grating autocorrelation measurements of ultrashort pulses
journal, January 1990