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Suppression of chaos in integrated twin DFB lasers for millimeter-wave generation
Dong Liu1, Changzheng Sun, Bing Xiong
1Tsinghua National Laboratory for Information Science and Technology, Department of Electronic Engineering, Tsinghua University, Beijing 100084, China.
Abstract:
A novel and simple method for high frequency millimeter-wave signal generation with integrated twin DFB lasers is proposed and demonstrated. Both theoretical simulation and experimental results confirm that chaos induced by large-signal direct modulation of a solitary laser diode can be suppressed by introducing adequate optical coupling from another dc biased laser diode. Frequency multiplication has been demonstrated employing such chaos suppression scheme using monolithically integrated twin DFB lasers, and low phase noise millimeter wave carrier ten times the modulation frequency is generated.
