Apparatus for measuring pulse width using two-photon absorption

Details Apparatus for measuring pulse width using two-photon absorption Apparatus for measuring pulse width using two-photon absorption

1992-06-04

1994-03-29

Turner, Samuel A.

Optics: measuring and testing

By particle light scattering

With photocell detection

356351, 359326, G01B 902

Patent

active

052991709

ABSTRACT:
A method of measuring the pulse width of a light pulse comprises the steps of causing a first light and a second light, which are both light pulse, to enter a medium having a two-photon absorption effect, detecting the first light of the first light and second light which have passed such medium, and measuring the pulse width of the first light or the second light on the basis of the result of the detection, and an apparatus for measuring the pulse width of a light pulse from a light source using this measuring method, whereby to obtain the self correlation function of light pulse of a light to be measured passing through the two-photon absorption medium for the provision of a highly precise measurement of light pulse width without any high precision phase adjustment of the light beam.

REFERENCES:
patent: 4973160 (1990-11-01), Takiguchi et al.
patent: 5161039 (1992-11-01), Schellenberg

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