22 December 1997 Integrated tunable laser with mode-selection modulator
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Abstract
We theoretically and experimentally investigate a recently proposed integrated tunable laser which consists of a curved waveguide distributed-feedback (DFB) laser and a passive electroabsorption (EA) modulator-separated by an isolation section. The modulator provides wavelength selectivity in the integrated device. The facet at the laser side is anti- reflection (AR) coated to enhance the light output power, and the EA side facet is high-reflection (HR) coated to increase the coupling between the two sections. We have developed a transfer-matrix model based on the coupled-mode theory which takes into account the curved waveguide and above-threshold spatial hole burning effects. Using this model, we study the wavelength tuning behavior of the integrated device when a voltage bias is applied to the modulator section.
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Alan Hsu, Wei-Chiao W. Fang, Shun-Lien Chuang, Tawee Tanbun-Ek, Clyde G. Bethea, Roosevelt People, "Integrated tunable laser with mode-selection modulator", Proc. SPIE 3290, Optoelectronic Integrated Circuits II, (22 December 1997); doi: 10.1117/12.298242; https://doi.org/10.1117/12.298242
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