A Tunable Femtosecond Modelocked Semiconductor Laser for Applications in OTDM-Systems

概要

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In this paper, we describe the properties of an external cavity modelocked semiconductor laser with a tunability of wavelength, pulse width and repetition rate. This modelocked laser generates optical pulses with pulse widths down to 180 fs and with repetition rates up to 14GHz in a 120nm wavelength range near 1.55μm or 1.3μm. The generated pulses are close to the transform limit and are therefore suitable for very hige speed communication systems. In addition to the tunability, this pulse source is a compact and mechanically stable device. We report on two applications of this pulse source in optical time division multiplexing experiments. In the first example the modelocked laser is used as an all-optical clock recovery. In the second example the modelocked laser was used to characterize an interferometric switch by pump-probe experiments.
社団法人電子情報通信学会の論文
1998-02-25