10 GHz, 2.4 ps pulse generation using a single-stage dual-drive Mach-Zehnder modulator

Takahide Sakamoto, Tetsuya Kawanishi, Masahiro Tsuchiya

Research output: Contribution to journalArticle

54 Citations (Scopus)


This Letter reports on picosecond pulse generation at a repetition of 10 GHz by using a single-stage electrooptic LiNbO3 Mach-Zehnder modulator, stressing the simplicity of its setup. It is analytically and experimentally proved that dual-arm modulation with in-phase sinusoidal signals having slightly different amplitudes generated a highly coherent optical comb with a great spectral flatness and a parabolic phase relationship in its spectrum. The generated comb was Fourier synthesized and shaped into an ultrashort pulse train with an optical bandpass filter and a dispersive fiber. The pulse source was highly stable, exhibiting an ultralow timing jitter of less than 130 fs.

Original languageEnglish
Pages (from-to)890-892
Number of pages3
JournalOptics Letters
Issue number8
Publication statusPublished - 2008 Apr 15
Externally publishedYes


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

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