Broadband wavelength-tunable ultrashort pulse source using a Mach-Zehnder modulator and dispersion-flattened dispersion-decreasing fiber

Isao Morohashi, Takahide Sakamoto, Hideyuki Sotobayashi, Tetsuya Kawanishi, Iwao Hosako

Research output: Contribution to journalArticle

43 Citations (Scopus)


The broadband wavelength tunability of femtosecond pulse generation using a Mach-Zehnder-modulatorbased flat-comb generator (MZ-FCG) and a dispersion-flattened dispersion-decreasing fiber (DF-DDF) was demonstrated. Near-Fourier-transform-limit picosecond pulses generated from the MZ-FCG were compressed into femtosecond pulses by adiabatic soliton compression. By tuning the wavelength of the input cw light, 200 fs, 10 GHz pulses were generated in the wavelength range of 1535 to 1570 nm. Such wide-range wavelength tunability was realized by both the independence of a comb-flattening condition from the inputted wavelength and the dispersion flatness of the DF-DDF.

Original languageEnglish
Pages (from-to)2297-2299
Number of pages3
JournalOptics Letters
Issue number15
Publication statusPublished - 2009 Aug 1


ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this