Apparatus and method for optical pulse measurement

Details Apparatus and method for optical pulse measurement Apparatus and method for optical pulse measurement

1997-06-18

1999-12-28

Kim, Robert

Optics: measuring and testing

By particle light scattering

With photocell detection

356346, 250550, G01B 902

Patent

active

060088990

ABSTRACT:
Practical third-order frequency-resolved optical grating (FROG) techniques for characterization of ultrashort optical pulses are disclosed. The techniques are particularly suited to the measurement of single and/or weak optical pulses having pulse durations in the picosecond and subpicosecond regime. The relative quantum inefficiency of third-order nonlinear optical effects is compensated for through i) use of phase-matched transient grating beam geometry to maximize interaction length, and ii) use of interface-enhanced third-harmonic generation.

REFERENCES:
patent: 4480192 (1984-10-01), Albrecht et al.
patent: 5530544 (1996-06-01), Trebino et al.

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