NDLI: Temporal laser pulse manipulation using multiple optical ring-cavities

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Temporal laser pulse manipulation using multiple optical ring-cavities

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	2010
Description	An optical pulse stretcher and a mathematical algorithm for the detailed calculation of its design and performance is disclosed. The optical pulse stretcher has a plurality of optical cavities, having multiple optical reflectors such that an optical path length in each of the optical cavities is different. The optical pulse stretcher also has a plurality of beam splitters, each of which intercepts a portion of an input optical beam and diverts the portion into one of the plurality of optical cavities. The input optical beam is stretched and a power of an output beam is reduced after passing through the optical pulse stretcher and the placement of the plurality of optical cavities and beam splitters is optimized through a model that takes into account optical beam divergence and alignment in the pluralities of the optical cavities. The optical pulse stretcher system can also function as a high-repetition-rate (MHz) laser pulse generator, making it suitable for use as a stroboscopic light source for high speed ballistic projectile imaging studies, or it can be used for high speed flow diagnostics using a laser light sheet with digital particle imaging velocimetry. The optical pulse stretcher system can also be implemented using fiber optic components to realize a rugged and compact optical system that is alignment free and easy to use.
File Size	1450001
Page Count	21
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_20110000830
Archival Resource Key	ark:/13960/t3wt3nx8x
Language	English
Publisher Date	2010-10-12
Access Restriction	Open
Subject Keyword	Optics Patents Laser Outputs Optical Paths Optical Resonators Inventions Pulse Generators Particle Image Velocimetry Pulsed Lasers Stretching Beam Splitters Fiber Optics Light Sources Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Patent

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