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Optical microwave generation using two parallel DFB lasers integrated with Y-branch waveguide coupler |
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| Authors: | Xie Hong-Yun Wang Lu Zhao Ling-Juan Zhu Hong-Liang Wang Wei |
| Affiliation: | College of Electronic Information and Control Engineering, Beijing University of Technology, Beijing 100022, China; National Research Center of Optoelectronic Technology, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083, China |
| Abstract: | A new device of two parallel distributed feedback (DFB) lasersintegrated monolithically with Y-branch waveguide coupler wasfabricated by means of quantum well intermixing. Optical microwavesignal was generated in the Y-branch waveguide coupler throughfrequency beating of the two laser modes coming from two DFB laserin parallel, which had a small difference in frequency. Continuousrapid tuning of optical microwave signal from 13 to 42GHz wererealized by adjusting independently the driving currents injectedinto the two DFB lasers. |
| Keywords: | optical microwave generation distributed feedback laser Y-branch beat-frequency |
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