Method for characterization of laser pulses using pulse...

Details Method for characterization of laser pulses using pulse... Method for characterization of laser pulses using pulse...

2006-08-15

2006-08-15

Harvey, Minsun Oh (Department: 2828)

Coherent light generators

Particular beam control device

Control of pulse characteristics

C372S026000

Reexamination Certificate

active

07092414

ABSTRACT:
There is described a method of characterizing a short laser pulse, the method comprising the steps of obtaining root-mean-square widths of the pulse through second order moments of the pulse; obtaining a spectral width of the pulse using the root-mean-square widths; obtaining a root-mean square temporal width of the pulse; and defining a Pulse Quality Factor proportional to a product of the spectral width and the temporal width. This approach does not require complete characterization of laser pulses and eliminates the need of any assumption to interpret autocorrelation traces. The method can be applied to pulses of arbitrary shape.

REFERENCES:
patent: 4006962 (1977-02-01), Olshansky
patent: 6547395 (2003-04-01), Neal et al.
The Physics and Technology of Laser Resonators, D.R. Hall and P E Jackson, Dept. of Physics, Heriot-Watt University, Edinburg, 1989, pp. 132-143.
Method for Measurement of Realistic Second-Moment Propagation Parameters for Nonideal Laser Beams, by Y. Champagne et al, Optical and Quantum Electronics 27 (1995), pp. 813-824.

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