Characterization and modeling of a noncollinearly phase-matched femtosecond optical parametric oscillator based on KTA and operating to beyond 4{micro}m

Journal Article · Tue Dec 31 23:00:00 EST 1996 · IEEE Journal of Quantum Electronics

DOI:https://doi.org/10.1109/3.554854· OSTI ID:419713

Reid, D T; McGowan, C; Ebrahimzadeh, M; Sibbett, W ^[1]

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1. Univ. of St. Andrews, Fife (United Kingdom)

The authors describe the design and operation of a critically phase-matched femtosecond optical parametric oscillator based on KTA. By employing a small pump-signal noncollinear angle, tuning of the idler to beyond 4 {micro}m is achieved using a Ti:sapphire pump laser. A Gaussian-beam model is described which can be used to identify the optimal noncollinear phase-matching geometry. Idler and signal pulses are characterized fully both temporally and spectrally and interferometric autocorrelation data at 3.5 {micro}m showing idler pulses of only eight optical cycles duration are presented.

• OSTI ID: 419713
• Journal Information: IEEE Journal of Quantum Electronics, Journal Name: IEEE Journal of Quantum Electronics Journal Issue: 1 Vol. 33; ISSN 0018-9197; ISSN IEJQA7
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
DESIGN
ELECTROMAGNETIC PULSES
FREQUENCY CONVERTERS
INFRARED RADIATION
LASER RADIATION
OPERATION
OPTICAL PUMPING
PARAMETRIC OSCILLATORS
SOLID STATE LASERS
TUNING