Intensity autocorrelation measurement of 400nm picosecond optical pulses from a GaInN mode-locked semiconductor laser diode using surface second harmonic generation of β-BaB2O4 crystal

Shunsuke Kono, Tomoyuki Oki, Masaru Kuramoto, Masao Ikeda, Hiroyuki Yokoyama

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5 Citations (Scopus)

Abstract

We developed an intensity autocorrelation measurement technique using the surface second harmonic generation (SHG) of a β-BaB2O 4 crystal to characterize picosecond optical pulses at 402nm from a GaInN mode-locked semiconductor laser diode (MLLD). This technique enabled us to precisely evaluate the pulse width at 402 nm, and the shortest pulse width of 1.6 ps was achieved from the GaInN MLLD operating under a reverse bias voltage of -25 V applied to a saturable absorber.

Original languageEnglish
Article number122702
JournalApplied Physics Express
Volume3
Issue number12
DOIs
Publication statusPublished - 2010 Dec 1

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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