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Patent

Means and method for characterizing high power, ultra short laser pulses in a real time, on line manner

James T. Veligdan
TLDR
In this paper, the authors describe a system that uses a physical measurement of a wavefront that has been altered in a known manner to slice off a portion of the removed portion and send the sliced portion to a measuring device for physical measurement.
Abstract: 
An ultra short (<10 ps), high power laser pulse is temporally characterized by a system that uses a physical measurement of a wavefront that has been altered in a known manner. The system includes a first reflection switch to remove a portion of a pulse from a beam of pulses, then includes a second reflection switch, operating in a mode that is opposite to the first reflection switch, to slice off a portion of that removed portion. The sliced portion is then directed to a measuring device for physical measurement. The two reflection switches are arranged with respect to each other and with respect to the beam of ultra short pulses such that physical measurement of the sliced portion is related to the temporal measurement of the ultra short pulse by a geometric or trigonometric relationship. The reflection switches are operated by a control pulse that is directed to impinge on each of the reflection switches at a 90° angle of incidence.

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Citations
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References
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Journal ArticleDOI

Single-shot measurement of a 52-fs pulse.

François Salin, +3 more
- 01 Nov 1987 - 
TL;DR: The possibility of a 52-fs pulse single-shot measurement is demonstrated by using the spatial analysis of the second harmonic beam produced in an optical autocorrelator and it is shown that this method gives means of optimizing low repetition rate femtosecond amplifiers.
Journal ArticleDOI

Versatile single-shot background-free pulse duration measurement technique, for pulses of subnanosecond to picosecond duration

R. Wyatt, +1 more
- 01 Jul 1981 - 
TL;DR: In this paper, an extension of the noncollinear second-harmonic generation technique for pulse autocorrelation measurements is described, where a diffraction grating is used to produce a tailored, expanded beam, with a differential time delay along its expanded axis.
Journal ArticleDOI

Amplification of picosecond 10 &#181;m pulses in multiatmosphere CO 2 lasers

Paul B. Corkum
- 01 Mar 1985 - 
TL;DR: In this paper, the characteristics of the amplified pulses have been investigated as a function of wavelength, pulse duration, and the pressure in the gain medium, using a high-power pulse compression technique.
Patent

Pulsed laser system

John J. McDonald
TL;DR: In this paper, a pulsed laser system capable of operating in a plurality of modes for delivering a burst of laser pulses to a target wherein the pulse width of the laser pulses are automatically controlled in response to the mode selected is described.
Patent

Method of and apparatus for modulating a laser beam

Joel C. Johnson, +1 more
TL;DR: In this paper, a laser system operating in both a lead bonding mode and a lead severing mode was presented, where the Q-switch was switched at a rate high enough to generate laser pulses suitable for severing the leads without heating adjacent portions of the leads.