We have demonstrated ultrafast optical pulse generation using a Mach-Zehnder-modulator-based flat comb generator (MZ-FCG) and an adiabatic soliton compression technique for terahertz-time-domain-spectroscopy. Our pulse generation technique is very simple configuration and has tunability in the repetition rate and the pulsewidth. The MZ-FCG was driven by two radio-frequency sinusoidal signals. Continuous wave lights led to the MZ-FCG were converted to ultraflat comb signals. The comb signals were formed into picosecond pulse trains by compensating the frequency chirp, and the picosecond pulses were compressed into femtosecond pulses by a dispersion flattened-dispersion decreasing fiber. Pulse trains with 200fs-width were successfully generated.
|ジャーナル||Journal of the National Institute of Information and Communications Technology|
|出版ステータス||Published - 2008 3 1|
ASJC Scopus subject areas
- Media Technology
- Electrical and Electronic Engineering