| Summary: | 碩士 === 國立交通大學 === 光電系統研究所 === 106 === Our monolithic two-section DFB laser have been researched in few years, the laser property about the RF generation and property, the reduction of RF linewidth have been reported. In previous research, our experimental device is the monolithic two-section DFB laser, but now, we focus the new formation of the lasers, using the three one section lasers packaged to monolithic three-section DFB lasers. At first, we analyze the relations between the DBR mirrors and the mode of the lasers with the two-section laser. After testing the prior three section laser and the data analysis, we design the similar DBR pairs in the two lasers. By analyzing the prior DBR structure, we design the 4.5 InP/air DBR pairs and 2.5 InP/air DBR pairs to observe the laser property, and we want to use the maser laser to modulate the RF characteristic, and founding the master play the heater on the RF which is dominantly generated by two slave lasers in terms of the 4.5 DBR pairs structure. On the other hand, the 2.5 InP/air DBR structure provide some interesting behavior for the RF properties. By suitable current allocation of the three lasers, we are able to generate the tunable RF signal.
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