skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Aberration-free, all-reflective laser pulse stretcher

Abstract

An all-reflective pulse stretcher for laser systems employing chirped-pulse amplification enables on-axis use of the focusing mirror which results in ease of use, significantly decreased sensitivity to alignment and near aberration-free performance. By using a new type of diffraction grating which contains a mirror incorporated into the grating, the stretcher contains only three elements: 1) the grating, 2) a spherical or parabolic focusing mirror, and 3) a flat mirror. Addition of a fourth component, a retro-reflector, enables multiple passes of the same stretcher resulting in stretching ratios beyond the current state of the art in a simple and compact design. The pulse stretcher has been used to stretch pulses from 20 fsec to over 600 psec (a stretching ratio in excess of 30,000).

Inventors:
 [1];  [1];  [2];  [1]
  1. (Livermore, CA)
  2. (Fremont, CA)
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
OSTI Identifier:
872554
Patent Number(s):
5960016
Application Number:
08/869345
Assignee:
Regents of University of California (Oakland, CA) LLNL
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
aberration-free; all-reflective; laser; pulse; stretcher; systems; employing; chirped-pulse; amplification; enables; on-axis; focusing; mirror; results; ease; significantly; decreased; sensitivity; alignment; near; performance; type; diffraction; grating; contains; incorporated; elements; spherical; parabolic; flat; addition; fourth; component; retro-reflector; multiple; passes; resulting; stretching; ratios; current; simple; compact; design; stretch; pulses; 20; fsec; 600; psec; ratio; excess; 30; 000; focusing mirror; multiple passes; flat mirror; pulse stretcher; diffraction grating; laser pulse; laser systems; multiple pass; compact design; systems employing; systems employ; pulse amplification; /372/359/

Citation Formats

Perry, Michael D., Banks, Paul S., Stuart, Brent C., and Fochs, Scott N. Aberration-free, all-reflective laser pulse stretcher. United States: N. p., 1999. Web.
Perry, Michael D., Banks, Paul S., Stuart, Brent C., & Fochs, Scott N. Aberration-free, all-reflective laser pulse stretcher. United States.
Perry, Michael D., Banks, Paul S., Stuart, Brent C., and Fochs, Scott N. Tue . "Aberration-free, all-reflective laser pulse stretcher". United States. https://www.osti.gov/servlets/purl/872554.
@article{osti_872554,
title = {Aberration-free, all-reflective laser pulse stretcher},
author = {Perry, Michael D. and Banks, Paul S. and Stuart, Brent C. and Fochs, Scott N.},
abstractNote = {An all-reflective pulse stretcher for laser systems employing chirped-pulse amplification enables on-axis use of the focusing mirror which results in ease of use, significantly decreased sensitivity to alignment and near aberration-free performance. By using a new type of diffraction grating which contains a mirror incorporated into the grating, the stretcher contains only three elements: 1) the grating, 2) a spherical or parabolic focusing mirror, and 3) a flat mirror. Addition of a fourth component, a retro-reflector, enables multiple passes of the same stretcher resulting in stretching ratios beyond the current state of the art in a simple and compact design. The pulse stretcher has been used to stretch pulses from 20 fsec to over 600 psec (a stretching ratio in excess of 30,000).},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1999},
month = {9}
}

Patent:

Save / Share: