| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 10407986 | Optics & Laser Technology | 2005 | 6 Pages |
Abstract
Optical pulse generated by directly modulated distributed feedback (DFB) laser and external electro-absorption modulator (EAM) in virtue of the method of fringe-resolved second-harmonic generation correlation was measured. Without the pulse's shape being assumed, through the method of iterative reconstruct interference signal, the waveform and phase of the pulse was reconstructed. The full-wave at half-maximum (FWHM) of the pulse generated by EAM under the microwave modulation of 2.5GHz is 30.8ps, whose shape is close to that of the sech2-type pulse. The FWHM of the pulse generated by DFB laser is 18.3ps, whose shape is close to that of the Lorenz-type pulse. And the original chirping of EAM is smaller than that of DFB laser.
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Electrical and Electronic Engineering
Authors
Han Yang, XiangSheng Liu, Jian Du, Wei Sun, DeHui Li, MaoBin Yi, GuoTong Du,