Dual-wavelength optical-pulse source based on diode lasers for high-repetition-rate, narrow-bandwidth terahertz-wave generation

Yuzo Sasaki, Hiroyuki Yokoyama, Hiromasa Ito

Research output: Contribution to journalArticle

36 Citations (Scopus)

Abstract

Synchronized dual-wavelength 1-MHz repetition-rate optical pulses were successfully generated by the combination of a gain-switched diode laser and a wavelength-tunable continuous-wave diode laser at 1.5 μm. The timing synchronization of dual-wavelength optical pulses was achieved with four-wave mixing by use of a highly nonlinear optical fiber. This optical pulse source was utilized for terahertz (THz)-wave difference-frequency generation by use of slanted periodically poled LiNbO3 (PPLN). We generated between 1.05 and 2.1 THz by use of the proper grating period of slanted PPLN with a 10-GHz bandwidth.

Original languageEnglish
Pages (from-to)3066-3071
Number of pages6
JournalOptics Express
Volume12
Issue number14
DOIs
Publication statusPublished - 2004 Jul

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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