Temporal characterization of mid-IR free-electron-laser pulses by frequency-resolved optical gating

Journal Article · Thu May 01 00:00:00 EDT 1997 · Optics Letters

DOI:https://doi.org/10.1364/OL.22.000721· OSTI ID:503637

Richman, B A; Krumbuegel, M A; Trebino, R ^[1]

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1. Combustion Research Facility, Sandia National Laboratories, Livermore, California 94551 (United States)

We performed what we believe are the first practical full-temporal-characterization measurements of ultrashort pulses from a free-electron laser (FEL). Second-harmonic-generation frequency-resolved optical gating (FROG) was used to measure a train of mid-IR pulses distorted by a saturated water-vapor absorption line and showing free-induction decay. The measured direction of time was unambiguous because of prior knowledge regarding free-induction decay. These measurements require only 10{percent} of the power of the laser beam and demonstrate that FROG can be implemented as a pulse diagnostic simultaneously with other experiments on a FEL. {copyright} {ital 1997} {ital Optical Society of America}

• OSTI ID: 503637
• Journal Information: Optics Letters, Vol. 22, Issue 10; Other Information: PBD: May 1997
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES
FREE ELECTRON LASERS
INTERMEDIATE INFRARED RADIATION
PULSE TECHNIQUES
HARMONIC GENERATION
GATING CIRCUITS
QUANTUM ELECTRONICS
ELECTRIC FIELDS
ELECTROMAGNETIC PULSES