Patent · US Active

Real-time measurement of ultrashort laser pulses

US8068230B2 · kind B2 · utility

4Cited by
13References
17Claims
0Family size

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Inventor

Key dates

Filing dateAug 29, 2008
Grant dateNov 29, 2011
Priority date—
Expiry dateFeb 20, 2030

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01J11/00
  • WIPO fieldMeasurement
  • WIPO sectorInstruments

Abstract

A real-time FROG system provides ultra fast pulse measurement and characterization. The system includes direct, integrated feedback that measures how well the system is retrieving pulses and tracking changes in the pulse train. This feedback is provided in real time and may be in the form of the FROG trace error, the display of the measured and retrieved FROG trace, accuracy of background subtraction or other quality measurement. The system includes preprocessing options that can be used to adjust the dynamic range of the measured signal or to perform different types of filtering. The preprocessing of the FROG trace precedes phase retrieval processing and improves the quality of pulse retrieval.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.