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Crystal-Configuration Considerations for Higher-Sensitivity Picosecond-Pulse SHG FROG

We experimentally compare a thick BIBO crystal, a walk-off compensating configuration of thin BBO crystals, and a thin PPLN crystal for the use as a nonlinear medium in SHG FROG, aiming for increased sensitivity required for complete pulse characterization of low-energy (below pJ) pulses a few picoseconds long at wavelengths near 1030 nm. We investigate the dependence of the spectral bandwidth of the frequency-doubled input ultrashort pulse and the conversion efficiency on focal-spot size in the nonlinear crystal. Both numerical and experimental results confirm an increase of the bandwidth with tighter focusing in a thick BIBO and a more-than-threefold increase of conversion efficiency compared to a thin BIBO crystal. A PPLN crystal is found to be the most efficient among the three, but very thin (

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Informasi Detail

Judul Seri

IEEE JOURNAL OF QUANTUM ELECTRONICS; Vol.56 No.2 April 2020

No. Panggil

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Penerbit

: .,

Deskripsi Fisik

p. 8600208

Bahasa

English

ISBN/ISSN

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Klasifikasi

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Tipe Isi

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Tipe Media

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Tipe Pembawa

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Edisi

-

Subjek

SECOND HARMONIC GENERATION
FROG
ULTRASHORT PULSE CHARACTERIZATION

Info Detail Spesifik

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Pernyataan Tanggungjawab

Peter Šušnjar, Travis Jones, Rick Trebino, Rok Petkovšek

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